Author Topic: Cupcake humm (only)  (Read 2533 times)

Megadeth

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Re: Cupcake humm (only)
« Reply #15 on: February 26, 2013, 03:52:30 AM »
Yah i forgott to tell you guys that the overview that i attached has different markings. Green for perfect, yellow for small humm (might be humbucker hum) and red is a disaster.

Megadeth

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Re: Cupcake humm (only)
« Reply #16 on: February 26, 2013, 03:54:25 AM »
Changed pot, ic, trannies and diodes and now i can confirm that the circuit is working as it should, but the humm is very constant and alot louder then the actual audio going through. The humm now starts after R2. However im gonna put back the shielded wires to see if it helps.


Thanks for your help midwayfair! i have learned alot from your tips.

Hrm.

well, the only signal at R2 is ... your guitar. It MUST be a grounding issue at the input jack or earlier, or your audio probe or something else external to the circuit.





Hi i wrote a bit unclear but its only after R2, probing before its perfect.