Troglodyte fuzz transistors

All about modern commercial stompbox circuits from Electro Harmonix over MXR, Boss and Ibanez into the nineties.
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Paul_5
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Post by Paul_5 »

Hi, I'm putting together a Troglodyte fuzz from the layout on dirtboxlayouts.blogspot and just wondered how critical the choice of NPNs are for Q1 and Q2. I've got a couple of low hfe (≈150) and just figured I'd throw them in there and see.
Troglodyte Fuzz.png
The sounds in my head don't match the sounds from my amp, I guess that's why I'm here...

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Paul_5
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Post by Paul_5 »

Turns out it's really good with two Is NPNs with a Hfe of 150ish!
The sounds in my head don't match the sounds from my amp, I guess that's why I'm here...

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287m
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Post by 287m »

that just fuzz meet muff tone?

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Post by Paul_5 »

Not so much of a muff tone, a bit more abrasive in the mids.

In a good way!
The sounds in my head don't match the sounds from my amp, I guess that's why I'm here...

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287m
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Post by 287m »

just for my eyes practice :D

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just realize fsb can edit post! <3
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Last edited by 287m on 03 Feb 2023, 20:11, edited 1 time in total.

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Post by plush »

287m wrote: 03 Feb 2023, 17:53 just for my eyes practice :D
C5 should go to lug 1 ot the trimpot.

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Post by 287m »

Aha! Thanks plush, nice catch.

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Make me remember of Mondo fuzz with BMP tone. If R4 and trimpot change position, make louder. Right?

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