Recent content by ambusch85

Acobberson, I think I accidentally stumbled on the answer... Can you tell me what amp you were testing/using it on? In my tests with this pedal, in smaller wattage amps it doesn't seem to have as much high end content and I end up using both bright and high presence. In higher wattage amps, I...

Yes that is normal. 2x12 has a volume jump as well over the center position.

acobberson, were you able to figure it out? I'm still thinking about changing all the pots to audio taper to easier dial in sounds. I didn't see anything incorrect in mine except I used poly's almost everywhere instead of MLCC since its what I had. Shouldn't change anything though.

I was about to ask if it was charge pump whine or some other issue with the charge pump/power supply. The 7660 (without the S suffix) does not have the function to boost the charge pump oscillator frequency above audible range, and is stuck at 10kHz. However, the 7660 with the S suffix should...

Exactly... hitting the stomp switch. It is absolutely because of no signal going to the peak detector. Tried to communicate that in my previous post in more simple terms. I don't recall the settings, but if I recall correctly they were all around 12:00..ish? Maybe? Found a post on a bass...

So after playing for it for a while, I noticed something a little off... When it's been turned off for a while, and then you turn it on maybe in the middle of playing something, there is a transient boost in volume. It's from the LED being off which sets the gain of the opamp stage to a max...

Pay no attention to all the scratches. During trouble shooting, I ended up replacing several parts numerous times.

Got everything boxed up and it sounds great! Thanks Chuck for the mod idea and help. And after everything boxed up with knobs to give me a better indication of where all the positions actually are at any given time, it sounds great in all reasonable settings. Some lessons learned: Get the...

If someone in the future reads this I also changed my vref resistors to 10k during troubleshooting. Not sure it did anything sonically, but it's just what I traced from photos of the warden.

I did what you suggested. But used a film cap for spacing and tied one leg to r13 and the other pin 1 on the pot side of the board. Highly recommend doing that. On most settings this was much cleaner signal. On some settings the first gain stage could be too much causing some distortion, like...

Thanks Chuck!! I'll mess around with it and report back.

So got the new ldr in there and the unity volume issue is fixed. It still has some light distortion narrowed down to the mpsa-18 buffer/splitter. Tried a different transistor, no change. I'll continue troubleshooting this, but as of right now if your having trouble with getting unity volume...

Keep in mind the switch will ground out the diodes when in bypass.

Shouldn't be a huge pop. The pull down resistors should prevent excessive pop. I've had dodgy switches that would pop even with the pull down resistors. Edit: Looks like Chuck beat me to it.

From Analogman's website, the trim pot all the way down is stock. For darker guitar or amps, turning the treble up a bit helps brighten them :). I used a daughter board for switch and trimmers to make them external, but having built this I wish I put just did 4 switches. 2 on-off-on for the...