Per request. HERE is the schematic.
Wednesday 30 December 2020
Tuesday 29 December 2020
Monday 28 December 2020
Sunday 27 December 2020
Roland AD-50 Double Beat Wah section
This was a request. Primary intended for the fuzz section but could of course be used as a stand alone unit.
Friday 25 December 2020
Thursday 24 December 2020
Durham Crazy Horse
Cranked Neil Young toanz in a box with an interesting sag/bias control labelled Volts. And yes....D4 is going nowhere....
Updated 201224 and now drawn from a schematic without bugs, avaiable HERE.
Parasit Studio The Corruptor V3
Latest version (V3) of a square wave fuzz with a PLL IC to achieve ring modulation.
Schematic and info is avaiable HERE.
Wednesday 23 December 2020
Parasit Studio Raygun Youth Chaos Fuzz
One of the craziest things I've heard. An op amp fuzz that tickles a Phase Locked Loop IC from one of my DIY heroes, Fredrik Lyxén of Parasit Studio. Schematic, demo and more info HERE.
Sunday 20 December 2020
Hudson Electronics Sidecar
A TS with bandaxall tonestack, a germanium transistor wired as a clipping diode and a high fidelity op amp. Schematic is avaiable HERE.
Lovetone Brown Source
There has been several schematics of this one over the years, each one having some bugs. But recentrly Lacesensor at FSB managed to do a proper trace and he posted thr corretions at FSB.
Thursday 17 December 2020
Death by Audio Absolute Destruction
A transatralntic trace by Enrico, AlexS and fuzzhead.
A big thanks goes to Enrico for letting us trace his pedal, all the images and the schematic.
The layout is tested and verified. There is some odd parts in there which can easily be subbed for other values. (221ohm to 220 ohm and 4,64k to 4,7k). MPSA05G transistors isn't that common but MPSA06 which is more widely avaiable works fine and is almost identical spec wise.
Also, Overload is linear, not log as in the first posted layout.
Monday 14 December 2020
Sunday 13 December 2020
Fuzzlord Effects Void Master
A variation of the old one knob fuzz. Note that a few cap values and the potentiometer value is unknown.
First, power filter which suitable values should be 47uf or 100uf, I went with a 47uF in the layout.
Second. BC filter cap for Q2 is unknown but my guess is 220pF. This can be sockeded for brighter or darker tone.
Third. Potentiometer value is also unknown but a classic fuzz face/one knob value like 500k works fine.
Built this up a few weeks ago and it sounds fantastic and sounds just like the demos online. I used a BC108B for Q1 and a BC109C for Q2.
And another slightly smaller layout with the internal trimmers moved to the outside for external bias and fuzz controls, suggested by Jesuscrisp.
Glass Jaw
Another Acapulco Gold variation, this time with a bandaxall tonestack between the gain stages and with a buffered clean blend....
Saturday 12 December 2020
Colorsound Sustain Module 1 switch version
Here is a rare old and quite unique circuit that hasn't been traced before. With lots of help from AlexS and cobyjoe we managed to trace it and a have a working clone.
So what is it? Not to be confused with the Supa Sustain, this is a quite gnarly and fat fuzz with lots of output on tap. Some parts of the circuit resembles to a Fuzzrite (Q2 and Q3) with a feedback path that that has lots of odd things happening (Q4, Q1, D1 D2).
There is also a 2 switch version with an added switchable transistor stage but I haven't managed to trace it yet....
Wednesday 2 December 2020
Tuesday 1 December 2020
Catalinbread Dirty Little Secret V3
Slightly modified with the internal DIP switches moved to the outside and splitted into two DPDT switches. One is for gain and one is for the tonestack (Super Bass and Super Lead modes).
Schematic is avaiable HERE
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