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Been playing around with different values to better understand why this circuit has been modified so many times. The drive pot in the feedback loop stops doing much when you get past ~100k (hence the 100k in the Black version). I went with B250k due to stocks. Also, having 20k as a minimum drive...

Well that would explain it.

Working to increase my collection of soft clippers I'm doing a build on this one. I like the design - a TS without buffers and some tweaks to the filtering and clipping. Not sure why the original TS needed transistor buffers anyway, given that the input impedance of an op amp stage is huge...

Thinking more about this topic, I recently acquired a Fargen Mini Plex amp, and one of the key features of this amazing little tone machine is the "decade switch" which changes the voice of the amp from 60s (JTM) to 70s (JMP) or 80s. (JCM). The decade switch is a very useful feature and the...

I'd like build a TS clone without the buffers so this seems ideal. However, as I have a 3 diode asymmetric clipper (Gainster), a 4 diode symettric clipper (Bluesbreaker), I'd like to build a mord compressed clipper ie 2 diodes like a TD808. Was there an Eternity version that did this and if so...

Really good info, thanks. I will check out the Wampler book(s). Are any of this community into LTspice modelling at all? I'm finding it a great tool for exploring circuits before breadboarding them.

I've built a few pedals, built a bunch a pedal models in LTspice, and have some electronics knowledge from university (ok, in 1982..). I've been looking specifically at the design of the filters in some of the popular pedals to try and figure out what the designer wanted. There's been a lot of...

You are right. I guess the cost of components are just a small fraction of the cost of any pedal when you consider R&D, marketing, and overheads such as manufacturing, shipping, and warranty.

The Tayda pre-drilled enclosures have an 8 mm hole for the DC jack. Are there any DC jacks out there that fit an 8 mm hole other than the Lundberg? Also what input output jacks are people using? From all the photos I've seen of others builds there seems to be a popular choice but I can't find...

Yes I did my research and bought some 24 AWG stranded pre-bonded wire from LoveMySwitches. It seems to work very well but seems expensive at $16.99 for 100 feet. I have a wire stripper tool so at least stripping the ends is easy.

Weller WLC100. However, I had some major tip issues and also had serious problems replacing the wrong wire with the right wire without overheating the pcb holes. The tip of my iron seemed to melt away - I guess my efforts to clean it using solder braid and a mass of copper stranded cable was a...

When you consider that the Naga Viper has just 17 components, including the pots, we can only imagine what the OEM's profit margin on the original pedal is given that they sell it for $179.

Nice. I just used a Red Herring board to make a Clark Gainster. It takes just a few component changes and one less pot. My build thread is here. On yours, what is the small board near the switch? I don't have any of that...

A few hours later it's finished. I had to replace the Lundberg power input as I burnt it soldering. Are there any other power inputs available in same thread size but in metal? I had 2 other Lundbergs but I dont think I'll buy more.

Update: almost all of the old wiring has been replaced, a new switch hand-wired in (no pcb) and results tested. No output. After some continuity checking I found that the Out pin on the main pcb was not connected to the wiper lug on the volume pot - and there is a pcb trace going between the...

It's solid and it's horrible. When my 24 AWG gauge turns up I'll rip it out and replace it. I decided not to screw around with a two-dollar 50 switch and 50 cent circuit board I'll just replace it with another switch.

It's the correct side up. (That was one mistake I made earlier then fixed it before those shots were taken). However, after a lot more testing I've decided that the problem is in the switch or switch pcb as 95% of the time the connection to Out isn't made when the pedal is switched on. With...

Well it worked when I connected up the power, in, and out to the breadboard. So I put it in the box, soldered up the input and output jacks, and the power jacks, and now it works only in bypass. LED is on, but no sound. Only change was soldering up the jacks and putting it in the box. So I know...

For my first pcb build of a pedal I decided to build a Clark Gainster / Hoochie Mama clone. The closest pcb available is the Red Herring, and other members figured out how to do this a while back: I breadboarded it successfully and played it for a few days using the Protoboard: Protoboard...

It's the AionFX kit so it has a charge pump as part of a well filtered power supply, including a pair of 100n caps to kill HF noise. There is nothing wrong with the kit, it's my home network - I feed my router output into the mains then out again to save using spotty wifi or a long network cable...