Hi

anyone got any information on this?

thanks

i wonder what's in there?
any info.pict..

anyone have schematic? Gullmour Wah prototype

thanks

Enjoy :D

There are lots of Hi Res photos in the dropbox link.

Teaser

BTW the two trannies side by side are in some of the pics are J201

Link to Dropbox with the pictures.

The other thread is already pretty heavy, so I'm creating this thread for reference.

This addresses both clone PCB's that UKToecutter produced. Version 1 is the orange board, and version 2 is the blue board. I realize that everyone that bought the first version was subsequently provided a second version, due to errors. Although the second version had two small errors as well, I decided to list all the corrections, for both boards. At least that way, if one wishes, they may recuperate the V.1...

I'd like to make a simple passive Y splitter to feed two amps even if the amplifiers have large ground voltage differences. The BigShot ABY appears to do that but I can't find the model of the transformer used in the circuit and I don't need the A-B selection ability.

Attached big-shot-blk-diagram.jpg is the block diagram for the BigShot. Can anyone suggest an appropriate make/model transformer?

PS - also attached YT-12243's approval sheet(20021003).pdf is the spec sheet for the OEM...

great... Thank you

Anyone have any info on it? Its apparently based on the Bug Crusher:

So I got this pedal recently and I'm wondering about the circuit. Lotus Pedals says it's an under drive as opposed to an overdrive.
I've drawn up the PCB as it is laid out and it's single layer. There are a few things I'm not sure about so I need your help with this.

Here's what I drew up:

Here's a photo from Lotus Pedals on Instagram of the PCB:

The transistor is a 2N5088.
I've noticed that the + of the 47uF goes to the lower connection of that 390 ohm resistor but I can't see it going...

Here's another Lotus pedal and this one excites me a lot more than the Snowjob.

Here's a drawing of the PCB:

Note a few changes:
Both 2.2K are actually 22K
The upper 100K is a 1M.

The pads with X over it are grounded.
Upper transistor is 2N3904 and bottom is 2N3906

Hi,
link to the tube-ish distortion:

Just change : D1-12V Zener,C2-4u7, C4-47nF,C7-47nF,add resistor 47k between Drive 1 and Gnd,R15-15k,C13-33nF,R16-3k9
Q1-D=5.17V,G=0V, S=0.825V
Q2-D=6.58V, G=6.58V,S=0.482V
Q3-D=7.27V , S=0.271V
Q4-B=7.28V,E=6.64V, C=9.05V
Enjoy .
Rgds,
box

I didn't want to take the chance on buying the hartman Tommy Bolin pedal at 160.00 so saw an o.k. deal on the
Mojo hand Zepher Fuzz and decided I'd buy it to report back ............

2n2222's looks like the sam ash / astro fuzz , When I plugged it in , didn't seem to sound or feel particularly good so
I got out my astro fuzz built from the schematic here on fsb with the bigger coupling caps and it sounds about the same
not much better or worse , same tone control that cuts bass as when you...

I just noticed that the schematic is available on this forum at this post - .
There's a mosfet connected at the output of the pedal with a large resistor that pulls the gate to 0v normally, but a few ms before the relay switches the microcontroller probably pulls the gate high so the signal muted and no pop is heard.

My question is - how can this be a mosfet? it has a body diode and with voltages above it's forward voltage the signal will be clipped, so how come this works? Are we sure this is...

Huge gutshot of the Hartman SFZ Dual Fuzz can be seen here:

By the description, it is a dual germanium/silicon Fuzz Face. This (now discontinued) version features NKT275 and BC108.
Info was found in this ebay auction: