General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
- Cap Cooler
- Posts: 479
- Joined: 03 Mar 2009, 22:49
- my favorite amplifier: my hughes and kettner blue 30r
- Completed builds: 3 jcm 800 builds
4 vintage plexi builds
2 bogner ecstasy preamps [both for personal use]
10 marshall guvnor mods and builds
100 jungle kat boosts
too many penguin love's to count.
5 blues pearl purplexed
dozen tube screamer fulldrive whatever you call them variants
hell i can't type this long it will piss off people what can i say i have been doing mods on toyz appliances gear sex toyz computers and such for 27 years. i started when i was 6 taking stuff apart.
- Location: cleveland tn
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So basically it's another Tube Screamer?
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- Joined: 17 Jun 2017, 21:01
- Location: Texas, US
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Yes, I can verify this schematic and vero layout. The first version was true bypass, then Durham shifted to buffered bypass due to switch popping. This trace shows the true bypass version, you can mitigate the pop quite well with an input pull-down resistor (1M to 2.2M) to ground before R3, plus the Jack Orman LED soft turn-on mod (http://www.muzique.com/lab/led.htm ). Mike
- Resistor Ronker
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- my favorite amplifier: Ampeg J12D Jet
- Location: Israel
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As drawn in Modman's schematic, the bypass is neither true nor buffered, but rather good old tone-sucky always-connected-to-the-input bypass.