VOX: Modded Vintage AC-4 schematic and tagboard layout

Vox Ac 4 schematic trem removed 589dc11164a1

While I’m in the process of modding / rebuilding some Vox amps, I thought I might try the original Vox AC-4 from 1962, or at least a simplified version of it.   Here’s a link to the full vintage Vox AC-4 schematic and amp details. Apart from the simplicity, I want to try something with an EF86 … Read more

PARK: Fuzz Sound, Two Knob Version, tag board layout

PARK 2 knob fuzz sound tag board v1 70eeb490f49f

Request for Phil – one tag board layout for the Park 2 knob fuzz sound.   I generally prefer to keep the links below the board, as it looks neater.  I don’t mind linking two adjacent lugs on top, as you hardly notice it. One suggestion for this.   The D*A*M Colosround Fuzz Sound has a few … Read more

VOX: Tone Bender, Tag Board Layout

VOX Tone Bender tag board layout v1 36263b277bbd

While I was working on another fuzz face layout (the Sonus Jimi Mod 1968),  I thought I might do a quick adaptation for the Vox Tone Bender, as there was room for the additional resistor. Quite fond of the Vox, so I’ll probably build this once I’ve finished my current project.  Usually I like to … Read more

GHOST EFECTS: Sounds of Today

GHOST Sound of today tagboard layout v1 d6bf2ec6764e

The Sounds of Today is Ian Sherwood from Ghost Effects adaptation of the MKI Tone Bender.  It’s all explained by Ian here, with photos.  There are also plenty of photos of these in various stages of construction Instagram too, so you can see a few variations along the way. Short story: The attack has been replaced with a fixed resistor.  The resistor … Read more

CHRISTIAN HOLMBERG (HEMMO): Bazz Fuss, Tag Board & Vero Layouts

HEMMO Bazz Fuss tag board layout v1 23ac54db34f3

This is a nice easy one for tag board off-cuts.  The Christian Holmberg (AKA Hemmo) Bazz Fuss.    A simple one transistor monster of a fuzz.  Kind of surprised that I had not done a layout or actually built one of these…  how did this not happen earlier?  I was prompted to do this after … Read more

D*A*M: Grand Magnus Orbiter (incomplete trace), Tag Board Layout

DAM Grand Magnus Orbiter tab board layout v1a 0c561cbb4172

It’s a Tone Machine / Arbiter Doubler – let’s get that out of the way up front. Here’s the thread on the D*A*M forum for the Grand Magnus Orbiter Rainy day project for me, as I already have a Tone Machine that I’m happy with.  Not sure I’d ever be up for a two-layer tagboard … Read more

JOHN HORNBY SKEWES: Selectatone TB2 Treble and Bass Booster, Tag Board Layout

JHS selectatone tb2 tag board layout v1 98bc5b238e14

While on the JHS thing, I noticed this booster and thought it looked interesting.  The output switches between filters to allow for treble and bass boost, unlike most other boosters where it all happens at the input. Very few seem to be around, as I could only find one photo of the internals and one video … Read more

ANALOG MAN: Beano Boost

ANALOG MAN Beano Boost tag board layout v1a 13a898fe84fa

The Analog Man Beano Boost takes the classic Rangemaster treble booster and adds a very useful function — a switched input capacitor that widens the tonal range beyond the original’s treble boost. Because it’s a single-transistor germanium circuit, the choice of transistor does shape the tone and clipping character, especially at higher gain settings.  That … Read more