Edge of Breakup
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The Best NOS Fuzz Face? | Expresso FX Dual Ge/Si Fuzz — CV7005 / 2N1307 / OC202
Expresso FX returns to the channel with the Dual Ge/Si Fuzz — Sof's germanium and silicon Fuzz Face-style circuit in one enclosure. Welcome back to Edge of Breakup.
The Expresso FX Dual Ge/Si Fuzz pairs with the Giordano Guitars Veloce — Sunbear '62 SB-PAT# Humbuckers, Emerson Custom Treble Bleeds — into the Cunningham Amps Custom 35 2x12" with Scumback H75-PVC speakers and Echo Fix EF-X3 Tape Echo.
Reach out to Sof on Instagram DM for current inventory: https://www.instagram.com/expressofx/
Learn about the Dual Ge/Si Fuzz: https://expressofx.com/product/fuzz-bender-mk-i/
This build houses two distinct transistor voicings in one Fuzz Face-style circuit — a switchable Ge mode built from Mullard CV7005 and Texas Instruments 2N1307 germanium transistors, and a Si mode built from OC202 silicon. All NOS, spanning the 1950s through 1970s, hand-selected by Sof.
Ge Mode (explored from 02:30) delivers the classic warm, harmonically complex germanium Fuzz Face character — explored across bridge and neck humbucker positions with extensive volume knob cleanup from 03:42, including a particularly dramatic cleanup with the volume knob rolled all the way down to 1 at 05:00.
Si Mode (explored from 05:56) shifts to a tighter, more temperature-stable, slightly more aggressive character courtesy of the OC202 — compared directly against the Ge mode's cleanup response across neck and bridge positions. The Bias control is explored from 08:10, opening up a range of gate and sustain character within Si mode, with volume knob cleanup revisited at 08:57.
The demo closes back in Ge Mode from 09:42, comparing high fuzz gain settings against the volume knob cleanup one more time — a direct bookend to the opening section.
The Sunbear '62 SB-PAT# Humbuckers — short-length Alnico V magnets referencing the brief Gibson transitional era between the PAF and Patent Number decal — bring a bright, spanky character reminiscent of the best vintage SG pickups. Bridge 7.7K / Neck 6.8K. The Emerson Custom Treble Bleeds keep that clarity intact through every cleanup sweep in this demo.
🎛️ Expresso FX: https://expressofx.com
🎸 Giordano Guitars: https://www.instagram.com/_giordanoguitars_/
🎸 Sunbear Pickups: https://www.sunbearpickups.com
🔊 Cunningham Amps: https://www.cunninghamamps.co.nz
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🎸 Giordano Guitars Veloce | All-Mahogany | Sunbear '62 SB-PAT# (AV Bridge 7.7K / AV Neck 6.8K) | Emerson Custom Treble Bleeds
🎛️ Expresso FX Dual Ge/Si Fuzz | Mullard CV7005 + TI 2N1307 Ge / OC202 Si | NOS ('50s-'70s) | Ge/Si Mode Switch | Bias Control
🔊 Cunningham Amps Custom 35 2x12" | Scumback H75-PVC | Echo Fix EF-X3
Ultimate Tweed Amp Tones | Reeves Electro Leo
The Reeves Electro Leo Tweed Overdrive returns for another deep dive — this time paired with the Wide Sky Guitars P125C and the Milkman Sound Creamer 20W into a Fane Ascension A60. Welcome back to Edge of Breakup.
The Reeves Electro Leo Tweed Overdrive pairs with the Wide Sky Guitars P125C Cutaway — Curtis Novak P90s, Emerson Custom pots, caps, and treble bleeds — into the Milkman Sound Creamer 20W pushing a Fane Ascension A60 speaker. The Effectrode Tube Vibe joins from 09:05.
The Reeves Electro Leo is a Tweed-voiced overdrive with boost — a 1979 blue-face Motorola 2N3904 silicon transistor paired with Hughes 5008 germanium diodes for a smooth, natural breakup character. Bufferless design, so it behaves like a Fuzz Face in terms of guitar volume cleanup and prefers sitting first in the chain. Three internal voicing references — 5W Champ, 12W Deluxe, or 40W Twin — give it a wide range of tonal territory from high-headroom clean tones to gnarly, saturated overdrive.
Explored slamming a dirty amp with Leo volume cranked from 00:26, cranking the pedal's own gain with volume at noon from 03:30, and with the Milkman Creamer set to a cleaner voice from 04:25. The amp's own volume is progressively lowered from 07:07 to open up headroom for the Leo's Boost section, activated at 08:05 — pushing the Leo into fuzz territory at the kick of the footswitch.
The Milkman Sound Creamer 20W, hand-built by Tim Marcus in San Francisco, delivers cathode-biased 6V6 breakup with a genuinely standout tremolo circuit — harmonically rich, deep, with a wide useful speed range, explored from 11:43. The Fane Ascension A60 Alnico speaker gives the rig a particularly touch-responsive, three-dimensional clean and edge-of-breakup character that the Curtis Novak P90s translate directly into the Leo's dynamic range.
🎛️ Reeves Electro Leo: https://reeveselectro.co.uk 🎸 Wide Sky Guitars: https://www.wideskyguitars.com 🎸 Curtis Novak Pickups: https://www.curtisnovak.com 🔊 Milkman Sound: https://milkmansound.com
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🎸 Wide Sky Guitars P125C | Curtis Novak P90s | Emerson Custom Pots + Caps + Treble Bleeds 🎛️ Reeves Electro Leo Tweed Overdrive | 1979 Motorola 2N3904 Si + Hughes 5008 Ge Diodes | Bufferless | 3 Voicings + Boost | Effectrode Tube Vibe 🔊 Milkman Sound Creamer 20W | Cathode Biased 6V6/6L6 | Fane Ascension A60 Alnico | Tremolo + Reverb
Get that Jimi Hendrix germanium fuzz face tone! | R2R Electric Ge Distorter Deluxe
R2R Electric returns with the Ge Distorter Deluxe — Chris Vincent's hand-wired vintage AC107 germanium Fuzz Face-style circuit, now with an external bias control. Welcome back to Edge of Breakup.
The R2R Electric Ge Distorter Deluxe pairs with the Tone Ranger Guitars Desert Star — 1 Meg pots, Lollar Regal Wide Range Humbuckers — into the Greer Amps Mini Chief with the Greer Smallblock 1x12" loaded with a Scumback S75-PVC speaker. Effectrode Tube Vibe joins from 07:16.
The Ge Distorter Deluxe is built from original vintage AC107 germanium transistors and period-correct components from the 1950s and '60s, hand-wired point-to-point by Chris Vincent in Los Angeles. It captures the raw, sagging sweetness of the earliest Fuzz Face circuits, with the same external bias control found on the Si Distorter Deluxe — letting you dial in voltage and tone feel in real time rather than relying on a fixed internal trim.
The Bias knob's sweep is explored extensively from 02:23 through 05:14 — hotter bias opening the fuzz into fuller, warmer sustain, colder bias tightening and gating it into a more percussive, spitting character. This is directly compared against a variety of amp brightness settings from 01:40, and against a cleaned-up guitar volume knob from 04:34 through 05:14, showing the classic germanium Fuzz Face glassy cleanup that AC107 transistors are known for.
Fuzz volume cranked to slam the Greer Mini Chief for more gain and compression from 03:59, with the Effectrode Tube Vibe joining from 07:16. The demo continues into a fully cranked amp from 09:11, with the volume knob cleanup and Tube Vibe combination revisited at higher gain from 11:06.
The Tone Ranger Guitars Desert Star's Lollar Regal Wide Range Humbuckers — Fender's original Seth Lover-designed Wide Range voicing — give the Ge Distorter Deluxe a fuller, rounder foundation with plenty of single-coil-like clarity, keeping the germanium fuzz articulate rather than muddy across the demo's full dynamic range.
Also watch: R2R Electric Si Distorter Deluxe, same rig.
🎛️ R2R Electric: https://www.r2relectric.com
🎸 Tone Ranger Guitars: https://www.tonerangerguitars.com
🎸 Lollar Pickups: https://www.lollarguitars.com/lollar-pickups
🔊 Greer Amps: https://www.greeramps.com
Subscribe for more boutique tone explorations.
🎸 Tone Ranger Guitars Desert Star | Lollar Regal Wide Range Humbuckers | 1 Meg Pots
🎛️ R2R Electric Ge Distorter Deluxe | Vintage AC107 Germanium Transistors | External Bias Control | Effectrode Tube Vibe
🔊 Greer Amps Mini Chief | 3W | Class A | Greer Smallblock 1x12" | Scumback S75-PVC
Get that Jimi Hendrix silicon fuzz face tone! | R2R Electric Si Distorter Deluxe
R2R Electric returns with the Si Distorter Deluxe — Chris Vincent's hand-wired Fuzz Face-style circuit built entirely from 1950s-60s NOS silicon components, now with an external bias control. Welcome back to Edge of Breakup.
The R2R Electric Si Distorter Deluxe pairs with the Tone Ranger Guitars Desert Star — 1 Meg pots, Treble Bleeds, Lollar Regal Wide Range Humbuckers — into the Greer Amps Mini Chief with the Greer Smallblock 1x12" loaded with a Scumback S75-PVC (8 ohm, 65W). Effectrode Tube Vibe joins from 08:54.
Get a Si Distorter Deluxe: https://reverb.com/shop/r2relectric
Join the R2R Electric email list: https://www.r2relectric.com/
The Si Distorter Deluxe revives the raw, articulate character of a vintage silicon Fuzz Face circuit, built entirely from genuine NOS silicon transistors and resistors true to 1960s spec, hand-wired point-to-point by Chris Vincent in Los Angeles. The key modern refinement is the external bias control — letting you dial in sag, texture, and clarity in real time rather than relying on a fixed internal trim. Voiced for warmth, grit, and clarity across the full dynamic range.
The Bias knob is explored extensively from 03:12 through 05:38 — hotter bias settings opening the fuzz into fuller sustain, colder settings tightening and gating the circuit for a more percussive character. Volume knob cleanup at 04:20 shows the classic silicon Fuzz Face glassy response, and the interaction between Bias and a cleaned-up volume knob from 05:38 reveals just how much tonal range this single external control adds over a fixed-bias original.
Fuzz volume cranked to slam the Greer Mini Chief from 07:01, with the Effectrode Tube Vibe joining from 08:54. The amp's own gain is pushed up from 09:33 with the fuzz held at unity, and the Bias/volume knob interaction is revisited at higher amp gain from 10:30 through 11:18.
The Tone Ranger Guitars Desert Star's Lollar Regal Wide Range Humbuckers — Fender's original Seth Lover-designed Wide Range voicing — give the Si Distorter Deluxe a fuller, rounder foundation with plenty of single-coil-like clarity to keep the fuzz articulate rather than muddy.
🎛️ R2R Electric: https://www.r2relectric.com
🎸 Tone Ranger Guitars: https://www.tonerangerguitars.com
🎸 Lollar Pickups: https://www.lollarguitars.com/lollar-pickups
🔊 Greer Amps: https://www.greeramps.com
Subscribe for more boutique tone explorations.
🎸 Tone Ranger Guitars Desert Star | Lollar Regal Wide Range Humbuckers | 1 Meg Pots | Dual Treble Bleeds
🎛️ R2R Electric Si Distorter Deluxe | NOS Silicon Transistors | External Bias Control | Effectrode Tube Vibe
🔊 Greer Amps Mini Chief | 3W | Class A | Greer Smallblock 1x12" | Scumback S75-PVC 8-Ohm 65W
Other R2R Electric videos you might like:
https://www.edgeofbreakup.studio/latest-videos/the-best-nos-fuzz-face-r2r-electric-geface-deluxe
https://www.edgeofbreakup.studio/latest-videos/r2r-electric-uniform-fuzz
https://www.edgeofbreakup.studio/latest-videos/electric-machine-fuzz-r2r-electric-zonk-machine
https://www.edgeofbreakup.studio/latest-videos/1959-fender-tweed-deluxe-5e3-vintage-amp-showcase
https://www.edgeofbreakup.studio/latest-videos/r2r-electric-pkiii-fuzz
https://www.edgeofbreakup.studio/latest-videos/r2r-electric-mki-pro-fuzz
https://www.edgeofbreakup.studio/latest-videos/r2r-electric-pre-amp-vintage-wah
R2R Electric MK-1Z Fuzz | The secret to Jimmy Page & Keith Richards guitar tone!
The R2R Electric MK-1Z Fuzz gets a dedicated deep dive — Chris Vincent's genre-blending merger of the Tone Bender MKI and the Maestro FZ-1 Fuzz-Tone. Welcome back to Edge of Breakup.
The R2R Electric MK-1Z Fuzz pairs with the Giordano Guitars Veloce (Serial #001) — Sunbear '62 SB-PAT# Humbuckers, Emerson Custom Treble Bleed — into the Cunningham Amps Custom 35 2x12" with Scumback H75-PVC speakers, across both Tweed and Plexi channels. Effectrode Tube Vibe joins from 08:09.
The MK-1Z is a genuinely original circuit concept from Chris Vincent — not a straight recreation of any single vintage pedal, but a deliberate merging of two distinct fuzz lineages. The Tone Bender MKI brings its snarling aggression and gated quality, the earliest British fuzz character that predates the Fuzz Face circuit entirely. The Maestro FZ-1 Fuzz-Tone — the first fuzz pedal ever commercially produced, famously used on the Rolling Stones' "Satisfaction" — brings its own sharp, cutting, more silicon-adjacent edge into the mix. The result sits somewhere between both worlds: feral and aggressive like a Tone Bender, but with an edge and cut distinct to the FZ-1 lineage.
The Sunbear '62 SB-PAT# Humbuckers in the Giordano Veloce — short-length Alnico V magnets referencing the brief Gibson transitional era between the PAF and Patent Number decal — bring a bright, spanky character reminiscent of the best vintage SG pickups. Bridge 7.7K / Neck 6.8K. The Emerson Custom Treble Bleed keeps that clarity intact through the volume knob sweep, giving the MK-1Z's saturated sustain and chewy midrange plenty of room to develop without turning to mud.
Explored across a genuine range of amp settings: cleaner Tweed channel tones from 00:34, higher gain Tweed from 06:04, and higher gain Plexi channel from 07:01 — showing how the MK-1Z's character shifts as the amp itself contributes more gain and compression.
🎛️ R2R Electric: https://www.r2relectric.com 🎸 Giordano Guitars: https://www.instagram.com/giordanoguitars/ 🎸 Sunbear Pickups: https://www.sunbearpickups.com 🔊 Cunningham Amps: https://www.cunninghamamps.co.nz
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🎸 Giordano Guitars Veloce (#001) | All-Mahogany | Sunbear '62 SB-PAT# (AV Bridge 7.7K / AV Neck 6.8K) | Emerson Custom Treble Bleed 🎛️ R2R Electric MK-1Z Fuzz | Tone Bender MKI + Maestro FZ-1 Hybrid Circuit | NOS Ge | Effectrode Tube Vibe 🔊 Cunningham Amps Custom 35 2x12" | Scumback H75-PVC
The Best Zonk Machine Fuzz!! | Electric Machine Pro | R2R Electric
The R2R Electric Electric Machine gets a deep dive — Zonk Machine circuitry made famous by Jeff Beck, Mick Ronson, Marc Bolan, and early Jimmy Page, tested across clean and pushed amp settings. Welcome back to Edge of Breakup.
The R2R Electric Electric Machine pairs with the Tone Ranger Guitars Desert Star — Lollar Regal Wide Range Humbuckers — into the Greer Amps Mini Chief at multiple gain stages. The Effectrode Tube Vibe joins from 16:44.
Get R2R Electric pedals on Reverb: https://linktw.in/bcndhr Join the R2R Electric email list: https://linktw.in/YIdkBQ
The Hornby Skewes Zonk Machine is one of the rarest and most sought-after British fuzz circuits of the 1960s — a close relative of the Tone Bender MKI, but with a distinct input capacitor value that rolls off low end before the fuzz stage, producing a more angular, midrange-forward, characteristically gnarly tone. The Electric Machine is Chris Vincent's take on the circuit, built in his Professional format with Texas Instruments, OC75, and OC44 transistors — the same NOS set found in the full-size wedge version — and Mustard caps throughout.
Two controls: Attack and Level. This demo runs the full range across a clean-ish amp first — bridge pickup at unity fuzz volume from 01:28, neck from 02:40, and extensive volume knob cleanup from 03:50 showing off the glassy, controllable cleanup that separates a well-built Zonk Machine from a muddier fuzz circuit. Pushing fuzz volume above unity slams the clean-ish amp from 05:25, with increasing compression as the level climbs from 06:53.
The amp is cranked from 10:45 with fuzz volume brought back to unity, and the Attack knob's sweep is explored in depth from 11:33 — lower Attack settings producing a more compressed, gated character, returning to max Attack at 13:56 for the fullest, most open fuzz tone available. Bridge pickup cleanup into the cranked amp from 15:23 shows how the Electric Machine's volume knob response holds up even when the amp itself is contributing significant gain.
The Tone Ranger Guitars Desert Star's Lollar Regal Wide Range Humbuckers — Fender's original Seth Lover-designed Wide Range voicing — give the Electric Machine a fuller, rounder foundation than a standard PAF, with enough single-coil-like clarity to keep the Zonk Machine's midrange character articulate rather than muddy.
🎛️ R2R Electric: https://www.r2relectric.com 🎸 Tone Ranger Guitars: https://www.tonerangerguitars.com 🎸 Lollar Pickups: https://www.lollarguitars.com/lollar-pickups 🔊 Greer Amps: https://www.greeramps.com
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🎸 Tone Ranger Guitars Desert Star | Lollar Regal Wide Range Humbuckers 🎛️ R2R Electric Electric Machine | NOS TI + OC75 + OC44 | Mustard Caps | Zonk Machine Topology | Attack + Level | Effectrode Tube Vibe 🔊 Greer Amps Mini Chief | 3W | Class A
Fix Your Les Paul Tone!!! | R2R Electric Preamp Super Deluxe
R2R Electric returns to the channel with a deeper dive into the Preamp Super Deluxe — Chris Vincent's take on the rare 1950s Höfner Preamp circuit, this time on the Les Paul. Welcome back to Edge of Breakup.
The R2R Electric Preamp Super Deluxe pairs with the Gibson Custom Shop Les Paul R8 Historic — Ron Ellis '50s LRP PAF Humbuckers, Emerson Custom x Edge of Breakup Prewired Kit. Effectrode Tube Vibe features from 15:15.
Get the EoB x Emerson Custom Les Paul Kit: https://emersoncustom.com/collections/prewired-kits/products/eob-les-paul-prewired-kit-premier-pro Join the R2R Electric email list: https://www.r2relectric.com/
The Preamp Super Deluxe is Chris Vincent's recreation of the rare 1950s Höfner Preamp circuit — a genuinely obscure vintage reference, built with NOS germanium AC107 transistors. Two gain modes, an adjustable EQ emphasis control, and a Gain knob that lets you balance drive coming from the pedal against drive coming from the amp itself.
The EQ emphasis control is the star of this demo — explored in depth from 02:21 through 06:38, sweeping from boosting the highest frequencies through the midrange down to a full-range boost with the lowest frequencies emphasized. This single control fundamentally changes what the pedal does to a humbucker — Ron Ellis' '50s LRP set, a replica of the exact PAFs found in Duane Allman's 1957 Goldtop, gets noticeably brighter and more cutting with the EQ emphasis pushed toward treble, and thicker and more amp-like with it pulled toward bass.
High Gain Mode is explored from the introduction through 09:30, with volume knob cleanup at 07:35 showing how the pedal interacts with the guitar's own dynamics. Low Gain Mode gets its own dedicated section from 11:24 through 15:15, offering a more subtle, touch-sensitive drive character. The Effectrode Tube Vibe adds modulation to the cleaned-up tone from 15:15, and the demo closes with both the amp and the Preamp Super Deluxe fully cranked from 19:36.
What kind of amp would you run this pedal into? With what guitar? Drop your thoughts in the comments.
🎛️ R2R Electric Preamp Super Deluxe: https://www.r2relectric.com 🎸 Ron Ellis Pickups: https://www.ronellispickups.com
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🎸 2002 Gibson Custom Shop Les Paul R8 Historic | Ron Ellis '50s LRP Set (Duane Allman '57 Goldtop Spec) | Emerson Custom EoB LP Kit
🎛️ R2R Electric Preamp Super Deluxe | NOS AC107 Ge | Höfner Preamp Circuit | 2 Gain Modes | Adjustable EQ Emphasis | Effectrode Tube Vibe
Expresso FX MKI.V Mini Fuzz | Tone Bender MK1.5 Greatness in a Small Package!
Expresso FX returns to the channel with the MK1.V Mini Fuzz — Sof's compact take on the dual-transistor Tone Bender variant that sits between a Fuzz Face and a full MKI. Welcome back to Edge of Breakup.
The Expresso FX MK1.V Mini Fuzz pairs with the Black Bobbin Chicago Phantone — Lollar x Black Bobbin Jazzmaster Pickups, Emerson Custom Pots and Treble Bleed — into the Cunningham Amps Custom 35 2x12" with Scumback H75-PVC speakers and Echo Fix EF-X3 Tape Echo.
Reach out to Sof on Instagram DM for current inventory: https://www.instagram.com/expressofx/ Learn about the MK1.V Mini Fuzz: https://expressofx.com/product/fuzz-bender-mk-i-v-mini-grey-hammertone/
The MK1.V sits between a Fuzz Face and a full three-transistor Tone Bender MKI in character — thicker and wilder than a straightforward Fuzz Face, but less aggressive than the full MKI. This Mini format packs the same circuit into a smaller footprint. Transistors: two NOS Mullard OC75 and one NOS Mullard OC76 germanium, spanning new old stock from the '50s, '60s, and '70s. As with the standard-format MK1.V, the volume knob cleanup is the defining characteristic — glassy, articulate, and highly responsive, explored extensively from 02:55 across both bridge and neck pickup positions.
The Lollar x Black Bobbin Jazzmaster Pickup Set — a collaborative pickup voiced specifically for the Phantone platform — gets a genuine workout here against the MK1.V's dual-transistor character, with the Echo Fix EF-X3's analog tape echo adding depth from 03:56 and increasing further at 08:27.
🎛️ Expresso FX MK1.V Mini Fuzz: https://expressofx.com/product/fuzz-bender-mk-i-v-mini-grey-hammertone/ 🎸 Black Bobbin Chicago: https://blackbobbin.com 🎸 Lollar Pickups: https://www.lollarguitars.com/lollar-pickups 🔊 Cunningham Amps: https://www.cunninghamamps.co.nz
Subscribe for more boutique tone explorations.
🎸 Black Bobbin Chicago Phantone | Lollar x Black Bobbin Jazzmaster Pickups | Emerson Custom Pots + Treble Bleed 🎛️ Expresso FX MK1.V Mini Fuzz | NOS Mullard OC75 x2 + OC76 | Dual-Transistor Tone Bender Variant | Echo Fix EF-X3 🔊 Cunningham Amps Custom 35 2x12" | Scumback H75-PVC
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
The best vintage fuzz pedal?! | Jam Pedals Black Fuzz Phrase LTD
JAM Pedals returns to the channel with the Fuzz Phrase Black OC44 Limited Edition — a run of roughly 100 units, and a genuine collector's piece. Welcome back to Edge of Breakup.
The JAM Pedals Fuzz Phrase Black OC44 LTD pairs with the Gronlund Guitars SC18 — TV Jones TV Classic Filter'Trons — into the Greer Amps Mini Chief and Greer Smallblock 1x12" with a pre-broken-in Scumback S75-PVC speaker. The Effectrode Tube Vibe features throughout.
In JAM Pedals' own words:
"Built entirely by hand in Athens, Greece, the Black Fuzz Phrase LTD is a love letter to the raw, expressive fuzz tones of the late '60s. At its core lies an ultra-rare stash of NOS OC44 Philips black glass transistors, manufactured in 1969 and individually tested and matched by ear. These legendary components are prized for their exceptionally low leakage, musical gain, and quiet operation — ideal for crafting a fuzz circuit that's both aggressive and articulate.
Each unit is point-to-point hand-wired on a turret board and wrapped in luxurious suede, staying true to our tradition of uncompromising craftsmanship. Vintage-spec carbon-comp resistors and tropical fish capacitors throughout the signal path. Thanks to the remarkable stability of the OC44s, the internal bias is factory-set to 4.5V — no tweaking needed, just plug in and go.
From wooly chords to singing leads, the Black Fuzz Phrase LTD delivers rich harmonics, smooth sustain, and that unmistakable vintage rasp."
Hand-wired, point-to-point construction. Individually ear-matched NOS OC44 black glass transistors, manufactured in 1969. Vintage-spec components throughout. True bypass switching. Positive ground circuit — requires an isolated power supply.
This demo runs the fuzz across a full range of amp gain settings and fuzz volume levels — low gain amp with fuzz at unity from 00:13, medium gain amp from 05:26, and pushed harder with the fuzz volume itself from 08:43 through fully maxed at 10:54. The guitar volume knob cleanup — the real test of any Fuzz Face-lineage circuit — is explored extensively from 03:04 and again at 11:21 with higher amp gain, showing how the OC44's exceptionally low leakage translates to a genuinely glassy, controllable cleanup sweep.
🎛️ JAM Pedals Fuzz Phrase Black OC44 LTD: https://www.jampedals.com 🎸 Gronlund Guitars: https://www.gronlundguitars.com 🔊 Greer Amps: https://www.greeramps.com
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🎸 Gronlund Guitars SC18 | TV Jones TV Classic Filter'Trons 🎛️ JAM Pedals Fuzz Phrase Black OC44 LTD | NOS OC44 Philips Black Glass (1969) | Point-to-Point Turret Board | Suede Wrap | Positive Ground | ~100 Units | Effectrode Tube Vibe 🔊 Greer Amps Mini Chief | 3W | Class A | Greer Smallblock 1x12" | Scumback S75-PVC (Pre-Broken-In)
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R10 & R121 | Ableton Live 12
The Rarest Fuzz Face! | Analog Man Sun Face — NKT275 White Dot (Mid-2003)
Analog Man returns to the channel — this time with a genuinely rare piece: a mid-2003 Sun Face fuzz, White Dot NKT275 germanium transistor variant, dated April 24th, 2003. Welcome back to Edge of Breakup.
The Analog Man Sun Face (White Dot NKT275) pairs with the Gronlund Guitars SC18 — TV Jones TV Classic Filter'Trons — into the Greer Amps Mini Chief and Greer Smallblock 1x12" with a pre-broken-in Scumback S75-PVC speaker. The Effectrode Tube Vibe joins from 10:18.
Huge thanks to Alex at ToneCraftFX for lending this unit for the shootout — give him a follow and subscribe.
The Analog Man Sun Face has been Mike Piera's flagship germanium Fuzz Face-circuit pedal for decades, and the specific era and transistor variant matters enormously to collectors. This unit is White Dot — referring to the white mark found on the NKT275 germanium transistors used inside, visible in the macro closeups of the pedal internals in this video. NKT275 transistors are widely considered among the best-sounding and most desirable germanium transistors ever used in a Fuzz Face-style circuit, and by 2003 they were already becoming difficult to source in quantity.
This unit also carries the 2.2uF input capacitor — a spec Analog Man later moved away from in favor of a 1.0uF input cap on subsequent production runs. The larger 2.2uF cap passes more low-end content into the fuzz stage, giving this specific era of Sun Face a fuller, thicker low end compared to later units. Between the White Dot NKT275 transistors and the 2.2uF cap, this specific dated unit represents a particularly sought-after and hard-to-find combination — genuinely difficult and expensive to track down today.
The Bias knob is explored extensively from 01:56 through 04:08 — colder settings tightening and gating the fuzz, hotter settings opening it into fuller sustain and bloom. Volume knob cleanup is explored across all three TV Classic pickup positions from 03:35 onward, showing the classic Fuzz Face glassy cleanup character that NKT275 transistors are famous for. The Greer Mini Chief pushed into its own natural breakup from 06:28 stacks with the Sun Face for compounded amp and fuzz sag — and the Effectrode Tube Vibe from 10:18 gives classic Fuzz Face into Uni-Vibe tones.
🎛️ Analog Man: https://www.buyanalogman.com 🎸 Gronlund Guitars: https://www.gronlundguitars.com 🔊 Greer Amps: https://www.greeramps.com
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🎸 Gronlund Guitars SC18 | TV Jones TV Classic Filter'Trons 🎛️ Analog Man Sun Face | White Dot NKT275 Ge | 2.2uF Input Cap | April 2003 | Effectrode Tube Vibe 🔊 Greer Amps Mini Chief | 3W | Class A | Greer Smallblock 1x12" | Scumback S75-PVC (Pre-Broken-In)
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R10 & R121 | Ableton Live 12
Killer Treble Booster tone! | Madsen Amps Ge Boost
Madsen Amplification returns to the channel with the Ge Boost — Maynard Madsen's germanium treble booster, inspired by the vintage Rangemaster but built to modern standards. Welcome back to Edge of Breakup.
The Madsen Amplification Ge Boost pairs with the Gibson Custom Shop Les Paul R8 Historic — Emerson Custom x Edge of Breakup Prewired Kit with Treble Bleeds, Ron Ellis '50s LRP Humbuckers — into the Cunningham Amps Custom 35 across both Tweed and Plexi channels.
Get the Emerson Custom x Edge of Breakup Les Paul Kit: https://emersoncustom.com/products/eob-les-paul-prewired-kit-premier-pro?sca_ref=6282128.5O9h8BhMpG Check out Madsen Amps: https://www.madsenamps.com/ Follow Madsen Amps: https://www.instagram.com/madsenamps/
The Madsen Amplification Ge Boost is Maynard Madsen's point-to-point recreation of the Dallas Rangemaster, hand-built in Camdenton, Missouri — NOS germanium transistors, carefully selected and hand-matched, with a three-way input capacitor selector for treble, mid-range, and full-range boost characters. Originally released as a numbered limited run of 30 units.
Into a pushed amp, the Ge Boost slams the front end for creamy sustain, gritty harmonics, and the classic British crunch that defines the Brian May, Rory Gallagher, and Tony Iommi treble booster lineage. Like all great Rangemaster-derived boosts, the guitar volume knob interaction is the real story — roll back for jangly sparkle, dime it for searing sustained leads.
Ron Ellis' '50s LRP Humbucker set — the replica pickup originally developed for the 2012 Gibson Lee Roy Parnell Signature Les Paul, modeled on the exact PAFs found in Duane Allman's 1957 Goldtop — gives the Ge Boost a genuinely vintage-correct foundation to work from. The Cunningham Custom 35's Tweed and Plexi channels both get explored, showing how the Ge Boost's character shifts depending on which amp voicing it's driving into.
Have you played a germanium treble booster before? Does the Madsen Ge Boost capture that vintage magic for you? Drop your favorite amp and treble booster pairings in the comments.
🎛️ Madsen Amplification: https://www.madsenamps.com 🎸 Ron Ellis Pickups: https://www.ronellispickups.com 🔊 Cunningham Amps: https://www.cunninghamamps.co.nz
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🎸 2002 Gibson Custom Shop Les Paul R8 Historic | Ron Ellis '50s LRP Set (Duane Allman '57 Goldtop Spec) | Emerson Custom EoB LP Kit + Treble Bleeds 🎛️ Madsen Amplification Ge Boost | NOS Ge | Dallas Rangemaster | 3-Way Cap Selector | Limited Run 🔊 Cunningham Amps Custom 35 | Tweed + Plexi Channels
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
The Boutique Pedal You NEED? | Kingtone Blues Power Deluxe | Jesse Davey
KingTone Guitar returns to the channel with the Blues Power Deluxe — Jesse Davey's expanded take on his own Blues Power design, with switchable clipping and a refined EQ section. Welcome back to Edge of Breakup.
The KingTone Blues Power Deluxe pairs with the Josh Williams Guitars Mockingbird — Tone Specific Bloombucker Humbuckers — into the Benson Amps Vincent 2x12" with Scumback H75-PVC speakers. Effectrode Tube Vibe joins from 09:56.
The Blues Power Deluxe is Jesse Davey's expansion on his original Blues Power — the same transparent, amp-breakup philosophy but with more tonal range on tap. Switchable clipping modes let you shape the drive character from subtle sparkle through to fat, saturated sustain, while active Bass and Treble controls give genuine EQ sculpting rather than a fixed tone stack — useful for tailoring the pedal to single coils, humbuckers, or whatever amp is on the other end.
Clean amp tones explored from 01:06: glassy sparkle and subtle breakup with the transparency that defines the Blues Power lineage — the pedal enhances the amp and guitar's own character rather than imposing a fixed voice on top of it. Pushed amp tones from 06:24: warm midrange growl, edge-of-breakup drive, singing sustain.
The Boost function is a genuinely powerful clean boost — capable of sitting at unity for pure tone sweetening, or pushing an already cranked amp much harder. Explored slamming the Benson Vincent's cranked clean channel from 08:21, with the Effectrode Tube Vibe added from 09:56. Volume knob cleanup explored in depth from 12:47, showing how the pedal responds to guitar volume and picking dynamics across the full range of clipping and EQ settings.
Jesse Davey — formerly of The Hoax, one of the UK's most respected blues guitarists — designed the original Blues Power and its Deluxe expansion from decades of stage and studio experience with what an always-on drive pedal actually needs to do.
Have you tried the Blues Power or the Blues Power Deluxe? Drop your thoughts in the comments — does it beat your go-to transparent overdrive?
🎛️ KingTone Guitar Blues Power Deluxe: https://www.kingtoneguitar.com
🎸 Josh Williams Guitars: https://joshwilliamsguitars.com
🔊 Benson Amps: https://www.bensonamps.com/guitar-amplifiers
Subscribe for more boutique tone explorations.
🎸 Josh Williams Guitars Mockingbird | Tone Specific Bloombuckers
🎛️ KingTone Blues Power Deluxe | Switchable Clipping Modes | Active Bass + Treble | Boost Function | Jesse Davey Design
🎛️ Also: Effectrode Tube Vibe
🔊 Benson Amps Vincent 2x12" | Scumback H75-PVC
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
Killer ‘60s Fender Amp Tone | Origin Effects Deluxe 61
Origin Effects returns to the channel with the Deluxe61 — the first pedal to faithfully recreate true power tube bias tremolo, paired with a Fender Brown Deluxe-voiced preamp and overdrive. Welcome back to Edge of Breakup.
The Origin Effects Deluxe61 pairs with the Josh Williams Guitars Mockingbird — Tone Specific Bloombucker Humbuckers — into the Benson Amps Vincent 2x12" with Scumback H75-PVC speakers.
The Deluxe61 is a full circuit recreation of the sought-after 1961 Fender Brown Deluxe — one of the great amps of the early 1960s — built as an all-analog signal path with a Class A preamp, push-pull output stage, output transformer, and reactive load. This is not a simulation layered on top of a generic drive circuit; it's the actual Brown Deluxe topology recreated in pedal form, which is why the interaction between the Drive control and the guitar's own dynamics feels so much like playing through a real amp.
The Drive control behaves like the volume knob on a vintage non-master-volume amp — turn it up and the amp itself gets pushed harder into breakup rather than adding a distortion stage after the fact. Tone brightens clockwise, darkens counterclockwise, with the crossover point at noon.
The bias tremolo is the headline feature — the first time this specific circuit-level effect has been recreated in pedal form. Unlike optical or VCA-based tremolo, which attenuates the signal on top of your playing, bias tremolo modulates the bias voltage of the amp's own output stage — meaning it responds to how hard you play. Dig in and loud notes rise above the modulation; back off and the tremolo swells back in as the note decays. This "play through the tremolo" interaction is explored extensively from 06:45, and again into a cranked amp from 11:30 where the interplay between overdrive and bias trem becomes even more pronounced.
Intensity controls tremolo depth. Speed sets the rate, with a Multi switch offering x1, x2, or x3 multipliers. Two wave shapes: the smooth sine wave that makes bias tremolo so beloved, and a choppier full wave setting for more obvious modulation at slower speeds or with heavier overdrive. Tap tempo footswitch input for syncing to a rhythm.
🎛️ Origin Effects Deluxe61: https://www.originaleffects.com 🎸 Josh Williams Guitars: https://joshwilliamsguitars.com 🔊 Benson Amps: https://www.bensonamps.com/guitar-amplifiers
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🎸 Josh Williams Guitars Mockingbird | Tone Specific Bloombuckers 🎛️ Origin Effects Deluxe61 | Fender Brown Deluxe Recreation | True Bias Tremolo | Class A Preamp | Push-Pull Output Stage | Sine + Full Wave | Tap Tempo 🔊 Benson Amps Vincent 2x12" | Scumback H75-PVC
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
Incredible Point to-Point Zonk Machine MKII NOS Silicon Fuzz | Reeves Electro ZO
Reeves Electro returns to the channel with the ZO — Markus Reeves' Zonk Machine MKII silicon fuzz, built from NOS components and voiced for exceptional touch sensitivity. Welcome back to Edge of Breakup.
The Reeves Electro ZO pairs with the Gronlund Guitars SC18 loaded with TV Jones TV Classic pickups, into the Greer Amps Mini Chief with a Scumback S75-PVC 8-ohm 65W speaker. The Effectrode Tube Vibe joins from 09:43.
The ZO is Markus Reeves' homage to the John Hornby Skewes Zonk Machine MKII — hand-built with a matched pair of NOS silicon transistors, period-correct resistors, and quality film and electrolytic capacitors in a minimalist, vintage-leaning circuit. True to the Zonk family lineage, the ZO sits somewhere between a fuzz and an overdrive — fast on the pick, rich in harmonics, animated in the upper mids without ever tipping into icepick territory.
Into a clean amp, the ZO delivers tight, articulate fuzz with a dry, percussive edge — chords stay separated, single notes have stringy bite, palm mutes thwack rather than flub. Roll the guitar volume back to 6-7 and it opens into a rawer, glassy drive that keeps the Zonk's characteristic rasp. Into a pushed amp at the edge of breakup, the ZO fattens into violin-like sustain with chewy compression — spit and snarl on attack that smooths as notes bloom, ideal for riff rock, proto-punk grind, and psychedelic leads.
Three controls, uniquely named: Drift (a fuzz/bias hybrid control simulating how original component values drift over decades — explored across its full range from 01:43 through 07:54), Texture (adds graininess and affects decay character — explored from 02:08 and returning as a favorite setting at 07:30), and Swell (output level, capable of pushing well above unity to slam the amp — explored from 04:47).
The guitar volume knob interacts with the ZO uniquely — not like a Fuzz Face, not like a Rangemaster, but its own three-channel-like sweep: saturated Zonk roar at 10, textured overdrive at 7, sparkly treble-tilted bite around 5. All three settings explored directly in the volume knob cleanup comparison from 04:09.
At the extreme low end of all three controls (explored from 08:42), the ZO produces crumbly, cracking, broken sound design textures — a genuinely different use case from the fuzz tones covered earlier in the demo.
Have you played a Zonk-style fuzz? Drop your favorite ZO settings and preferred amp pairing in the comments.
🎛️ Reeves Electro ZO: https://reeveselectro.co.uk 🎸 Gronlund Guitars: https://www.gronlundguitars.com 🔊 Greer Amps: https://www.greeramps.com
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🎸 Gronlund Guitars SC18 | TV Jones TV Classic Filter'Trons 🎛️ Reeves Electro ZO | Zonk Machine MKII Silicon | NOS Transistors | Drift / Texture / Swell | Effectrode Tube Vibe 🔊 Greer Amps Mini Chief | 3W | Class A | Scumback S75-PVC 8-Ohm 65W
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
The Best Tone Bender MKI?! | Cunningham Amps MKI Fuzz
Cunningham Amps returns to the channel with the MKI Fuzz — Tim Cunningham's take on the iconic Tone Bender MKI circuit, and one of the best-sounding recreations of it around. Welcome back to Edge of Breakup.
The Cunningham Amps MKI Fuzz pairs with the Gronlund Guitars SC18 — vintage-style TV Jones TV Classic Filter'Tron pickups — into the Greer Amps Mini Chief and Greer Smallblock 1x12" loaded with a pre-broken-in Scumback S75-PVC speaker. The Effectrode Tube Vibe joins from 05:07.
The Tone Bender MKI is the original British fuzz — the 1965 Sola Sound circuit that predates the Fuzz Face and produces a distinctly saggy, compressed, explosive character compared to the two-transistor circuits that followed. Tim Cunningham's take on the MKI brings vintage-inspired fuzz tone with his own modern refinements — the same raw, expressive attitude that made the original a favorite of the earliest British Invasion players, built to hold up in a modern rig.
This demo pushes the circuit and the Greer Mini Chief's 3-watt Class A EL84 power stage together — thick sustain, gated breakup, and plenty of character at every setting. The Attack knob's sweep from 01:23 shows the range from tighter, more controlled fuzz to fully gated and spitting. Volume knob and guitar dynamics interact heavily with the MKI circuit — as demonstrated across both bridge and neck TV Classic positions.
The Greer Mini Chief already runs at the edge of breakup on its own — a genuine 3-watt Class A amp gets pushed into natural distortion at usable volumes far more easily than a higher-wattage head. Stacking the MKI Fuzz on top of that (explored from 04:39) produces layered breakup — amp sag and fuzz sag compounding on each other — which is a different animal from running the same fuzz into a cleaner, higher-headroom amp.
🎛️ Cunningham Amps MKI Fuzz: https://www.cunninghamamps.co.nz/effect-pedals 🎸 Gronlund Guitars: https://www.gronlundguitars.com 🔊 Greer Amps: https://www.greeramps.com
Subscribe for more boutique tone explorations.
🎸 Gronlund Guitars SC18 | TV Jones TV Classic Filter'Trons | Honduran Mahogany Semi-Hollow 🎛️ Cunningham Amps MKI Fuzz | Tone Bender MKI Circuit | Attack + Level | Effectrode Tube Vibe 🔊 Greer Amps Mini Chief | 3W | Class A | 12AX7 + EL84 | Greer Smallblock 1x12" | Scumback S75-PVC (Pre-Broken-In)
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R10 & R121 | Ableton Live 12
Kingtone Octaland - Jesse Davey
Jesse Davey and KingTone Guitar return to the channel with the Octaland — an octave fuzz and overdrive built from the ground up, not a clone of anything. Welcome back to Edge of Breakup.
The KingTone Guitar Octaland pairs with the Josh Williams Guitars Mockingbird — Tone Specific Bloombuckers, Emerson Custom Treble Bleeds — into the Benson Amps Vincent 2x12" with Scumback H75-PVC speakers. The KingTone Vibe 1968 joins from 10:12.
Jesse Davey designed the Octaland as a genuinely original circuit rather than a recreation of the classic Octavia/Band of Gypsys fuzz — the goal was the most playable and fat high-octave tone possible, without the common failure mode of most Octavia-style pedals losing their octave character at higher drive settings. At low gain, the Octaland delivers a nearly clean high octave tone. At high drive, the octave content remains intact rather than collapsing into undifferentiated fuzz — explored throughout this demo from the gain-only exploration at 01:21 through Octave Mode engaged at 06:21.
Controls: Volume, Drive, Blend (mixes the pure octave signal with clean or fuzz tones — anywhere from a subtle harmonic enhancement to full-bodied aggressive octave texture), and Voice (a tone control that also shapes the clarity and character of the octave effect itself). A three-way EQ voicing switch offers Full Fat (round, satisfying, maximum gain — great for huge guitar tones or bass), Glass (cutting and up-front), and a third intermediate voicing.
Explored into both a clean amp (01:21 through 10:12) and a cranked amp (11:57 through 16:26) — the octave character behaves differently depending on how hard the amp itself is being pushed, giving the Octaland a much broader range than a typical fixed-voicing Octavia clone.
🎛️ KingTone Guitar Octaland: https://www.kingtoneguitar.com/product/minioctaland/ 🎸 Josh Williams Guitars: https://joshwilliamsguitars.com 🎸 Tone Specific: https://www.tonespecific.com 🔊 Benson Amps: https://www.bensonamps.com/guitar-amplifiers
Subscribe for more boutique tone explorations.
🎸 Josh Williams Guitars Mockingbird | Tone Specific Bloombuckers | Emerson Custom Treble Bleeds 🎛️ KingTone Guitar Octaland | Volume / Drive / Blend / Voice | 3-Way EQ Voicing | Ground-Up Octave Fuzz Design 🎛️ Also: KingTone Vibe 1968 🔊 Benson Amps Vincent 2x12" | Scumback H75-PVC
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
Two Tone Benders in One! | Expresso FX Mojo Edition Fuzz Bender MKII & MKI.V
Expresso FX returns to the channel with the Mojo Edition Fuzz Bender MKII & MKI.V — two historic fuzz classics in one pedal, all loaded with NOS CV7005 germanium transistors. Welcome back to Edge of Breakup.
The Expresso FX Mojo Edition Fuzz Bender MKII & MKI.V pairs with the Gibson Custom Murphy Lab SG — Righteous Sound RAF A4/A2 Humbuckers, Emerson Custom Prewired Kit and Treble Bleeds — into the Benson Amps Vincent 2x12" with Scumback H75-PVC speakers via the Boss Waza Tube Amp Expander. The Effectrode Tube Vibe and Benson Tall Bird+ Harmonic Tremolo also feature.
Sof at Expresso FX combines two distinct three-transistor and two-transistor Tone Bender-family circuits into one enclosure, both running NOS CV7005 germanium transistors — three transistors total across the combined circuit for the MKII, with the MKI.V offering its own dual-transistor character as a switchable mode.
MKII Mode (explored from 01:50) is the fuller, thicker Sola Sound Tone Bender MKII voicing — richer low end and more sustain than the earlier MKI, the sound that defined the sludgier end of British psychedelic and early hard rock guitar. Fuzz Level and Attack are explored across their full range from 02:57 through 05:23, with the volume knob cleanup on both neck and bridge humbuckers explored from 06:14.
MKI.V Mode (explored from 09:43) sits between a Fuzz Face and a full Tone Bender MKI — thicker and wilder than a straightforward Fuzz Face, but less aggressive than the three-transistor MKI. The Attack knob and reduced Output are the primary creative tools here, with an extensive volume knob cleanup exploration from 10:09 and again at 13:46, this time with the Benson Tall Bird+ Harmonic Tremolo engaged from 14:05.
The Gibson Custom Murphy Lab SG's Righteous Sound RAF A4 neck (~6.9K) and A2 bridge (~7.5K) humbuckers give both fuzz modes plenty of vintage PAF character to work with — open and airy in the neck, warm and vintage-voiced in the bridge.
🎛️ Expresso FX: https://expressofx.com
🎸 Righteous Sound Pickups: https://www.righteoussoundpickups.com
🔊 Benson Amps: https://www.bensonamps.com/guitar-amplifiers
Subscribe for more boutique tone explorations.
🎸 Gibson Custom Murphy Lab '64 SG Standard | Aged Pelham Blue | Righteous Sound RAF (A4 Neck / A2 Bridge) | Emerson Custom Prewired Kit + Treble Bleeds
🎛️ Expresso FX Mojo Edition Fuzz Bender MKII & MKI.V | 3x NOS CV7005 Ge | Dual Circuit | Effectrode Tube Vibe
🎛️ Also: Benson Tall Bird+ Harmonic Tremolo
🔊 Benson Amps Vincent 2x12" | Scumback H75-PVC | Boss Waza TAE
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
Bennett Custom Audio Lighthouse featuring Wide Sky Guitars P125c
Bennett Custom Audio makes its channel debut with the Lighthouse — Mark Bennett's Amplitude Modulating Amplifier, and one of the most fully-featured tremolo pedals ever built. Welcome back to Edge of Breakup.
The Bennett Custom Audio Lighthouse pairs with the Wide Sky Guitars P125C Cutaway with Curtis Novak P90s and Emerson Custom Treble Bleeds, into the Benson Amps Monarch 2x12" via the Boss Waza Tube Amp Expander. The Echo Fix EF-X3 and Meris MercuryX Reverb run in the effects loop.
Bennett Custom Audio builds in St. Catharines, Ontario, Canada — every Lighthouse hand-assembled by Mark Bennett.
The Lighthouse is a contemporary, pedal-sized take on vintage tremolo-equipped tube amplifiers. What separates it from every other tremolo pedal is the all-analog signal path that includes a discrete preamp with Gain, Presence, and Volume controls — this isn't a modulation pedal with a drive stage bolted on, it's a preamp with a sophisticated modulation circuit built around it. The Gain, Presence, and Volume shape the core tone. A separate Tilt EQ then acts only on the wet signal — allowing the modulated and unmodulated signals to have different tonal characters simultaneously, explored throughout the demo.
Two tremolo modes with separate, individually-tuned signal paths: Harmonic mode modulates bass and treble frequencies out of phase from each other — the lush, vibey sound of a brownface-era Fender amp where the frequency content swims rather than simply pulses (explored from 10:26). Bias mode uses an additional long-tailed pair and push-pull amplifier stage to push the signal in and out of distortion — the LFO drives the amplifier circuit itself, like a vintage tube amp's bias tremolo, producing a rougher, more characterful throb (explored from 02:32).
Six total tremolo flavors: two modes combined with three waveforms — Square (in Bias mode activates "Chop" mode where Intensity controls duty cycle rather than depth), Sine (explored at 04:43 as a personal favorite slow Sine setting), and Sawtooth. Rate, Intensity, Mix controls. Tap tempo with three subdivisions: quarter notes (1x), eighth notes (2x), triplets (3x). Tap-and-hold ramp function: hold left footswitch to ramp rate down, hold right to ramp rate up — returns to original setting on release. Proprietary high-voltage internal power circuitry. Powered by 9-24VDC.
🎛️ Bennett Custom Audio Lighthouse: https://www.bennettcustomaudio.ca/lighthouse 🎸 Wide Sky Guitars: https://www.wideskyguitars.com 🎸 Curtis Novak Pickups: https://www.curtisnovak.com 🔊 Benson Amps: https://www.bensonamps.com/guitar-amplifiers
Subscribe for more boutique tone explorations.
🎸 Wide Sky Guitars P125C | Curtis Novak P90s | Emerson Custom Treble Bleeds 🎛️ Bennett Custom Audio Lighthouse | Bias + Harmonic Tremolo | Preamp (Gain/Presence/Volume) | Tilt EQ (Wet Only) | Tap Tempo | 3 Subdivisions | 3 Waveforms | Hand-Built in Ontario 🎛️ Also: Echo Fix EF-X3 | Meris MercuryX Reverb 🔊 Benson Amps Monarch 2x12" | Boss Waza TAE
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
The Best Vintage Style Fuzz?! | R2R Electric Replica Series MK1.5 Fuzz
R2R Electric returns to the channel with the second of the eBay auction wins — the Replica Series MK1.5 Fuzz, serial number 2. Welcome back to Edge of Breakup.
Also watch: R2R Electric Replica Series MKII Fuzz, serial number 3: https://youtu.be/WQKbxvUN4_k
In this episode the R2R Electric Replica Series MK1.5 Fuzz gets its full showcase — paired with the Gibson Custom Murphy Lab '64 SG Standard in Aged Pelham Blue, Righteous Sound RAF A4/A2 Humbuckers, Emerson Custom Prewired Kit and Treble Bleeds, into the Benson Amps Vincent 2x12" with Scumback H75-PVC speakers via the Boss Waza Tube Amp Expander. The Effectrode Tube Vibe joins from 07:39.
Get on the R2R Electric mailing list: https://www.r2relectric.com/
Follow R2R Electric: https://www.instagram.com/djlavalamp
The MK1.5 is the transitional circuit between the Fuzz Face and the Tone Bender MKI — a two-transistor design that uses 100K potentiometers rather than the Fuzz Face's standard values, producing a character that has the interactive volume knob cleanup of a Fuzz Face but with a denser, more compressed midrange and thicker low end. The tonal difference between the MK1.5 and the MKII in the companion video is a study in how small circuit variations within the British fuzz lineage produce dramatically different results — the MKII's three-transistor openness against the MK1.5's two-transistor density.
The R2R Electric Replica Series represents Chris Vincent's most exacting work — a part-for-part, component-for-component recreation using the exact same types of components used in the original pedals. In Chris's own words: "part for part the most accurate I'm able to build." Serial number 2 of this build. Loaded with Mullard branded OC75 "British Made" germanium transistors — the exact transistors found in the original MK1.5 units. NOS passive components throughout. Hand-wired point-to-point. Place first in signal chain before any buffered bypass pedals.
The Bias knob explored from 02:05 (colder bias) and 13:19 (hotter bias) gives the MK1.5 a wide range of tonal character — colder settings produce crunchier, more aggressive rhythm tones with more gate; hotter settings give phatter, more compressed tones with more midrange and smoother cleanup. Volume knob cleanup with colder bias from 04:06. Attack knob explored from 09:57 and 17:46.
🎛️ R2R Electric: https://www.r2relectric.com
🎸 Righteous Sound Pickups: https://www.righteoussoundpickups.com
🔊 Benson Amps: https://www.bensonamps.com/guitar-amplifiers
Subscribe for more boutique tone explorations.
🎸 Gibson Custom Murphy Lab '64 SG Standard | Aged Pelham Blue | Righteous Sound RAF (A4 Neck / A2 Bridge) | Emerson Custom Prewired Kit + Treble Bleeds | Murphy Lab Light Aged
🎛️ R2R Electric Replica Series MK1.5 Fuzz | Serial #2 | Mullard OC75 "British Made" NOS Ge | Part-for-Part MK1.5 Recreation | Bias + Attack + Level | Effectrode Tube Vibe
🔊 Benson Amps Vincent 2x12" | Scumback H75-PVC | Boss Waza TAE
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12
The Best Vintage Style Fuzz! | R2R Electric Replica Series MKII Fuzz
R2R Electric returns to the channel with something truly special — the Replica Series MKII Fuzz, serial number 3, won at eBay auction in a fight to the finish. Welcome back to Edge of Breakup.
In this episode the R2R Electric Replica Series MKII Fuzz takes center stage — featuring the Gibson Custom Murphy Lab 1964 SG Standard in Aged Pelham Blue with Righteous Sound RAF A4/A2 Humbuckers and Emerson Custom Prewired Kit, into the Benson Amps Vincent 2x12" with Scumback H75-PVC speakers via the Boss Waza Tube Amp Expander. The Effectrode Tube Vibe joins from 08:58.
Get on the R2R Electric mailing list: https://www.r2relectric.com/
Follow R2R Electric: https://www.instagram.com/djlavalamp
Coming soon on the channel: R2R Electric Replica Series MK1.5, serial number 2 — subscribe so you don't miss it.
The R2R Electric Replica Series represents the pinnacle of Chris Vincent's builds — a part-for-part, component-for-component recreation of original vintage fuzz circuits using the exact same types of components used in the original pedals. Not inspired by or based on — as close to an exact replica as possible. The MKII Fuzz is Chris's recreation of the 1966-1969 Sola Sound Tone Bender MKII — the two-transistor germanium fuzz that became the defining British fuzz circuit of the late 1960s, used extensively by Jimmy Page, Jeff Beck, and the early Rolling Stones. Serial number 3 of this build. NOS vintage germanium transistors, NOS passive components throughout, hand-wired point-to-point. Place first in signal chain before any buffered bypass pedals.
The Gibson Custom Murphy Lab '64 SG Standard in Aged Pelham Blue is part of Gibson's Murphy Lab program — Tom Murphy's proprietary aging process applied to new Custom Shop builds, using scientifically reverse-engineered nitrocellulose lacquer identical to what Gibson used in the 1950s and 1960s. The 1964 SG Standard is the model associated with George Harrison and Eric Clapton, featuring the dependable Maestro Vibrola that replaced the earlier clunky sidepull vibrato, and a neck profile increased in size resembling the profile found on 1959 Les Pauls. Solid lightweight one-piece mahogany body. Mahogany neck, authentic '64 medium C profile. Indian rosewood fingerboard, hide glue fit. 24.75" scale. 22 frets. Cellulose nitrate trapezoid inlays. ABR-1 bridge. Murphy Lab Light Aged hardware throughout.
The Righteous Sound RAF (Righteousness Applied For) A4/A2 set is a vintage accurate PAF replica — butyrate bobbins, USA-made pole screws and slugs, custom fabricated nickel PAF clone covers with no copper undercoat, long-legged vintage accurate threaded baseplates, period correct 42awg plain enamel wire, vintage single braid wire. Alnico 4 neck (~6.9K) / Alnico 2 bridge (~7.5K) — the A4 neck delivering open, airy clarity, the A2 bridge providing vintage warmth without compression.
🎛️ R2R Electric: https://www.r2relectric.com
🎸 Righteous Sound Pickups: https://www.righteoussoundpickups.com
🔊 Benson Amps: https://www.bensonamps.com/guitar-amplifiers
Subscribe for more boutique tone explorations.
🎸 Gibson Custom Murphy Lab '64 SG Standard | Aged Pelham Blue | Righteous Sound RAF (A4 Neck ~6.9K / A2 Bridge ~7.5K) | Emerson Custom Prewired Kit | Murphy Lab Light Aged | Maestro Vibrola
🎛️ R2R Electric Replica Series MKII Fuzz | Serial #3 | NOS Ge | Part-for-Part Tone Bender MKII Recreation | Effectrode Tube Vibe
🔊 Benson Amps Vincent 2x12" | Scumback H75-PVC | Boss Waza TAE
Recording: Universal Audio Apollo x4 | Ohma Ribbon | Lauten Audio LS-208 | Royer R121 & R10 | Ableton Live 12