Author Topic: Gravity Wave (Verified)  (Read 15028 times)

amcmann95

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Re: Gravity Wave (Verified)
« Reply #75 on: August 09, 2018, 06:11:38 PM »
Quick question for everyone-- My voltages all match except for the lm324, which is low-- around .3v. *However*, when I pop it out of the socket, the voltages match perfectly. Problem with the chip Im guessing?

m-Kresol

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Re: Gravity Wave (Verified)
« Reply #76 on: August 10, 2018, 04:01:29 AM »
sounds like could be the chip. If you have another one, just try it out.

Could also be that only with the chip inserted you have a connection to something that is then pulling down the voltage. Which pins are out of spec?

Also, what is the problem with your build? No LFO? No Sound?
I build pedals to hide my lousy playing.

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amcmann95

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Re: Gravity Wave (Verified)
« Reply #77 on: August 10, 2018, 07:22:05 AM »
Thanks for the other suggestions m-kresol. Its pins 10, 12, and 2.

I have no LFO. The only pot that really does anything is the dimension pot. Anything with the lm324 isnt working, including the rate led

m-Kresol

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Re: Gravity Wave (Verified)
« Reply #78 on: August 10, 2018, 10:23:19 AM »
ok, so this means you are loosing your reference voltage VB2. since VB2 is only connected to the IC, it would suggest a defective IC.
I would replace it first and hope for the best.
I build pedals to hide my lousy playing.

My projects are labeled Quantum Effects. My shared OSH park projects: https://oshpark.com/profiles/m-Kresol
My etching tutorial