Topics

Are there options for getting a reliable scope for a reasonable price? Do the USB scopes you see on eBay work?

Built the aquapuss on vero (sabrotone layout) as a warm-up for the DirtBag. Initially I threw a mn3205 to verify it was working. Sounded great! so I decided to build the daughter board and put in 2 v3205's. I could not dial out the heavy distortion on the repeats.  Thinking it might be the chips, I popped in 2 mn3205's and they biased easily.

Bad chips? Well I put the v3205's in my ad3208 (generalguitargadgets) and they worked just fine!! as a bonus I'm getting a higher output on my ad3208 now as well. Maybe variation in voltages between the 2 builds?

The aquapuss has darker repeats than the ad3208 but I find the latter to have more musical repeats on longer/infinite delay settings. That being said I don't have a scope so I may need to spend a bit more time adjusting trimmers.

Any chance these are real and just re-labelled poorly? Thought I'd take a chance for $12.50 and it appears I was burned. Already initiated a dispute with eBay as "item not as pictured." They used stock photos of chips with real logos.  Unfortunately the ad3208(generalguitargadgets) and aquapuss builds I have are setup for xx32XX chips so I can't test them without doing some mods.

I'm trying to deal with some faint but annoying high pitched clock noise. Seems to be an issue that comes up a bit with the more complex builds. I'm using the v3207 chip. I subbed a 560pF capacitor in place of the 680pF on the output of the chip just because I didn't on hand. Other than that I'm getting about 8.2 volts on pin 4 of the delay chip when the doc says it should be about 7.6v. I'm using a boss psu (9.6V) Would that account for the higher voltage or should that not matter?
One other question regarding the correction on the board at D4. Should it's lead be soldered just at C6/D5 junction or where the anode lead goes through the board as well. Right now I just have it terminated at C6/D5.
Thanks in advance to anyone who's got any hints.

Question:
Will a bl3102 work with 2 mn3205's? What about with 2 v3205's? I'm having difficulty tracking down mn3102's so what I'm getting at is: Is a clock just a clock? Thanks!