Recent content by JohnnyCreepy

Potential AI scam detected, as regular human spirits cannot keep their workspace drawers as neatly organized.

This might be related to your issue. I’d say you really need practice how to make your solder really flow. Most of the component connections on the PCB look like cold solder joints, but it’s fun to notice MORE pot has best joints. :unsure:

Nice catch!

Any update? :unsure:

For avoiding that solder transistors with long legs until circuit operation is verified. On that kind of long transistor legs there’s plenty to trim shorter. If you’re not using more expensive machined ones then YES and leg diameter/shape varies on transistors which causes contact looseness...

I suspect ”schematic error” by solder bridge or missing/intermediate gnd connection somewhere. Watch out for potential solder bridges between copper strips. Marked some of ’em. To exclude it being a problem run either an exacto knife couple times along area in between strips or do it with...

Nice to finally see a schematic showing how to use PNPs without a charge pump. I have some salvage AC12X/equivalent pnp transistors from old organ which will now find use.

10k is a trimmer wired as variable resistor for biasing. Last transistor is a darlington one with 20k hFE. Cap before it was changed to 680n one, ’cos that was closest value I had at hand back then. And it lead me to use darlington transistor also, other Si ones didn’t work with 680n cap. I’d...

I’ve liked this and it has kept place as my main pedal since building it. ASYs I used have really low leakage & hFE range from 45-70.

In most recent build even the tone stacks silver micas got replaced with polys. There nothing ceramic there apart tube sockets and resistor shells!

This was original circuit and it was audible enough. After rebuilds I’d say it’s slightly audible. So from my perspective it doesn’t bother anymore.

You’ll love this question. Is there a looper pedal which does repeat recorded phrase as you’re really playing it? And I mean WITHOUT THE LOSS IN AUDIO QUALITY and the tonezz? Have tried Zoom multieffect pedals looping and mates Boss RC-20. Those suck. And I’m not really keen on spending...

⬇️ So yeah, stickchops, 90 degree zig zags etc have been tried. There’s distance and 90 degree crossings which aren’t so obvious from a pic. And yeah, after the pic wiring is tidier and some changes there too. The same hum problem was there with the original PCB before I touched any offboard...

Just build Lead version if you’re planning to use modern speakers. I just built an amp with Bass versions preamp section and ended up changing it to resemble Lead, ’cos bass content was too superwhelming with fuzz through 15” speakers.

It was happening on somewhere between V2 and PI+NFB. NFBs first resistor from speaker feed has a pot wired as variable resistor series onto it. If I turn pot to reduce NFB amount the hum is more aubile. Now the NFB section is valued 20K resistor+50K (or was it 100K pot) from 16 ohm to 10K...