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Messages - jacobcarlgrant

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Tech Help - Projects Page / Re: Moodring Help - Buzz, Wrong IC Voltages
« on: December 12, 2019, 06:40:52 PM »
Yes. Just removed it to ensure all connections looked good underneath.

Tech Help - Projects Page / Moodring Help - Buzz, Wrong IC Voltages
« on: December 12, 2019, 05:09:25 PM »
I attempted the Moodring for my first build - probably should have started simpler, but I'm already this far now, so no going back. I have everything hooked up, and I can pass a good clean dry signal through it. However, whenever I add in the "mood" knob, I get this awful reverberated buzz sound. Additionally, when I test my IC voltages, I am almost dead on everywhere. The places with wrong IC voltages are:
IC1: pin 2 (4.2V instead of 4.54V)
IC3: pin 7 (0.52V instead of 0.69V)
IC4: pin 3 (2.24V instead of 4.13V), pin 5 (2.24V instead of 4.13V)
I've checked every resistor and have found them all to be of proper value. Any thoughts?

Thanks for the info! I'm just gonna go for it. I've soldered before, wired up a few guitars, but nothing quite this involved. Sockets are on the way, so I don't fry the ICs. Thanks again for the advice!

I'm tackling my first build, which is the Moodring reverb. I just received all of the components, as well as the PCB. Before I solder everything into place, I'd like to test it on a breadboard, which is where I'm stuck. On the schematic for the Moodring, there are certain "tags" that say VB and VC, and they usually come from the positive side of an op-amp or from a transistor. Where do they go? Also, there are a few circles with an X through them, which usually say "BYP.1_IN" or something similar. Where do these go? I know, these questions are beyond noob level. Any help is appreciated!

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