Search found 5 matches

by Cigano23
06 Mar 2020, 02:52
Forum: Boutique Stompboxes dissected...
Topic: Roger Mayer - Fuzz Face AC128
Replies: 7
Views: 1231

Re: Roger Mayer - Fuzz Face AC128

This is what he calls the "Classic Fuzz".

The current version uses a 50K (47K?) trimpot for the first transistor collector bias and a 10K output resistor.

And from the top of my head, the usual 8k2 resistor is 10K on the more recent versions of Classic Fuzz.
by Cigano23
20 Dec 2019, 15:39
Forum: Boutique Stompboxes dissected...
Topic: Hermida Audio - Mosferato M2 (2004)
Replies: 5
Views: 838

Re: Hermida Audio - Mosferato M2 (2004)

Found this slightly earlier version:

Image

One can tell he is using 2 germanium diodes and 2 transistors for the clipping section and one of the IC's is a RC4559.
by Cigano23
28 Nov 2019, 17:09
Forum: Boutique Stompboxes dissected...
Topic: Vertex - T-Drive [traced]
Replies: 0
Views: 1025

Vertex - T-Drive [traced]

I traced the Vertex Ultraphonix, an it is a modified zen, with fixed Voiced pot value at 2.35K. Its Filter pot is the Zen Tone pot. Two 1k restors were omitted, the 1k one connected to the center Gain pot, and one 1k connected to the high volume pot. Instead it has 10k resistor between the volume h...
by Cigano23
07 Oct 2019, 19:44
Forum: Boutique Stompboxes dissected...
Topic: Roger Mayer - Axis Fuzz [traced]
Replies: 34
Views: 9019

Re: Roger Mayer - Axis Fuzz [traced]

andregarcia57 wrote:Hello ... Does anyone know Hfe values of Q1 and Q2 from the original RM?
They're around 150-200hfe.
by Cigano23
07 Oct 2019, 19:38
Forum: Boutique Stompboxes dissected...
Topic: Vertex - Steel String Singer [traced]
Replies: 25
Views: 17028

Re: Vertex - Steel String Singer [traced]

StratWiz wrote:Does anyone have schematic or trace for Vertex Ultraphonix overdrive, a D-syle pedal?
The steel string drive's bother.
Thanks
SW
I wouldn't bother with that, it's a Zendrive clone.