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So the visual inspection looked ok to me. I did clean up a few things but did not see anything my untrained eye found questionable. It was Q3 that I replaced because it seemed to me the problem starts there. But that didn’t fix things. R5 and R9 are 560k and 4.7k respectively and color match...

Re the Magetron, it's not the DC or in/out jacks. I may have damaged IC 1 during my wrestling match with the enclosure (no audio out from it), so I ordered a replacement and will wait for its arrival. Now, re the tremolo pedal, I re-flowed a lot (not everything) and even replaced one...

Tks! I took it out of the enclosure and it still doesn‘t work so I will examine your other options.

😂😂 Well, I first built a reverb pedal kit from BYOC. Worked first time out of the box, but then it was a kit and left little room for messing up. So, I got cocky and decided to build the Cobalt Drive (the PedalPCB forum thread for which now goes down in infamy for its length and my ineptitude)...

Thanks!

And I’ve got plenty that don’t look pristine for sure. Well, there’s no avoiding it…….gotta reflow.

And if I reflow them all and it miraculously works, how will I know where my mistake was? Sounds like a zen koan…..🤪

I also get continuity between Q3 and Q4, but not between Q1 and Q2 or and not Q2 and Q3. Is that normal. I just don’t know how far continuity travels with the various caps and resistors in between, although it seems the Q3-Q4 connection is as “cluttered” as the others. And although I get...

I checked all the resistors that the schematic shows directly connect to ground (using the legs on the resistors) and there is continuity on all. Checked the transistor legs to ground, also have continuity. I guess it’s on to reflowing……..I‘m so bad at it…….

Jumper didn't do it. So, I have noob, history major, questions before I start re-flowing. Do I need to reflow a solder if my multimeter shows continuity between that point and those connected to it on the schematic? I understand I must have s short somewhere but unless I see solder or wire...

I’ll give it a shot! Tks!

Was hoping for some advice re to where I might want to start resoldering based on the info I provided. I guess replacing the Q3 because that’s where the audio trail stops is not a useful strategy?

I’ve checked the resistors but haven’t reflowed all the solder. Did replace the Q4 transistor.

There is voltage on Q4 (3.6; .6 and 0), but none on Q3. But Buddy says that there should be none there anyway.

Thanks! Yes, I do have that continuity. But I still get no audio out. Any suggestions?

Did everyone get bored with me? 😆. Really do need some input if you’re not. Plus, well, I have another pedal I built that worked fine before stuffing it in the enclosure and now nada. But I’ll keep at that one on my own for now. Meanwhile, any useful suggestions re the tremolo would be most...

So, did you miss me? Sadly, I replaced the Q4 5088 but no luck. Voltages are now 3.66, 0.61 and 0, however, different than before. Same problems, though. To recap. I get continuity between all the components on the schematic. I did an audio probe. I get audio all the way to and including...

Brief intermission: while awaiting a replacement 5088 for the tremolo pedal, I finished building the Tayda BSIAB2 distortion pedal (again, bought because I kept forgetting other items for the infamous Cobalt Drive experience - buying all my PCB’s from PedalPCB from now on!). Before plugging...

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Rechecked Q4. Readings are the same. Cleaned it up. Pic below. I verified R9 (4.7K).