Chankgeez wrote:Well, at least it worked for a little while. You'll get it working again. Seems like an interesting pedal.
Thanks - I thought things were going suspiciously well for me when I got it working! I heard enough to know that I want to try to modify parts of it - I really want to get just the delays from the pedal as an output (no original dry guitar sound) and from looking at PT2399 chips apparently pin 14 might be an output of just the wet sound (I hope)... I also want to bias the damage a bit - only about a third of the feedback pot was useful - after that all it did was create crackling popping noise (which is fun, but I like
some signal with my noise).
crochambeau wrote:How much heat is that 7805 shedding? I don't off-hand know what the standard draw of a 2399 is, but if that 5 volt regulator is over taxed it could be an early failure point.
Pure speculation, of course. I don't mind looking at strips, I just don't like doing circuit analysis in that grid if that makes any sense.
Good question! I don't know, it didn't occur to me to stick my fingers on the circuit while I was playing it. I think PT2399s are supposed to only use 5 volts, but I think (might be wrong) that Ezhi and Aka use them at 6 volts which sometimes switches the pedals off but does create weird delay effects I guess? Hmm so maybe too much power = pT2399 shutdown? Or would too little power do the same thing? Hmmm I do have a separate starve simple starve circuit I could try to limit the incoming power with to see if that helps or not. If you want to see the schematic I'll paste it below:
I'm not going to be able to look at this until next weekend; we had a flood last week and I'm still cleaning up the mess from that and have to be at work all next week, but as soon as I can get my tools out again I'll post some progress.