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Topics - wakejyles

#1
Tech Help - Projects Page / Current Lover no signal
July 09, 2024, 08:44:24 PM
Hey all!

I just finished putting together the Current Lover and am not getting any signal when the pedal is on. I've got it set to run at 18v with a 3007 chip. The LED stays on all the time, but gets a little bit brighter when the pedal is engaged. I took it out of the box since I thought maybe there was a short somewhere, but testing it unboxed still produced the same results.

I've also started taking an audio probe to it, and as far as I can tell most of the resistors towards the beginning of the circuit seem to be passing audio just fine. I'm also getting audio into and out of the BBD and am able to hear it modulating and changing when I move the rate, manual and feedback knobs in different positions, so I don't think the issue is in the chip itself. My guess is that it might be something power related, but I'm not really sure where to look or where to go from here at this point, so any help would be greatly appreciated!!

I've attached a couple pictures of the board in the google folder below.
https://drive.google.com/drive/folders/1SGt9pc9nhamOFJcnJnCFFCxq1luBbkc2?usp=drive_link
#2
General Questions / Lectric FX Dandy Horse help
June 09, 2024, 06:24:42 PM
Hey all! Hopefully this is the right thread to post this, but I just finished up a Dandy Horse build and am running into some issues. Basically it seems to be working in the sense that I'm getting some modulation out of it and the modes are "functioning" enough to know that there isn't any issue there, however I'm unable to dial out any of the high pitched whine that should be dialed out with the cancel trimmer.
The cancel trimmer itself seems to only range from "super intense whine" to "somewhat subtle but still present" whine. It's the most pronounced with the trimmer set in the center, and then gradually decreases the further I turn it left or right. I'm also noticing that the gain 1 and 2 trimmers don't seem to have that pronounced of an effect, unless I max out Gain 2 I don't really hear a difference between them.

I started checking voltages and everything looks good except for the 3007s, so I suspect something is up there. On IC3 my readouts are:

15v
7.5v
10.1 (should be 7.8v)
0
0
7.7-9.5v (should be 7.5v)
8.8-9v (should be 8.4v)
8.9v (should be 8.4)

on IC4 I'm getting:
15v
10-12v (should be 7.5v)
9v (should be 6.6v)
0
0
10 (should be 7.5v)
8.6v (should be 7.6v)
8.3v (should be 7.4v)

I've doubled checked all the resistor and cap values around the chips, reflowed everything in that area, and still can't seem to figure out what the issue is or how to get rid of the whine that's there. Any help would be greatly appreciated!!