Author Topic: Pork Barrel clock noise  (Read 509 times)

jonnygreentrees

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Pork Barrel clock noise
« on: February 09, 2017, 02:10:12 PM »
Mentioned this in my build report but thought it was worth mentioning here too.

Just finished my Pork Barrel and I'm getting a quiet ticking that is audible even when the pedal is bypassed. The ticking changes speed with the rate knob. It was much louder until I wiggled the bottom right transistor and then in got quieter but it's still there

Any ideas?


sturgeo

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Re: Pork Barrel clock noise
« Reply #1 on: February 09, 2017, 02:28:21 PM »
First thing I'd try is shortening your off board wiring, can you plug the effect in and move all the wiring clear from the board, see if it reduces in volume.

jonnygreentrees

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Re: Pork Barrel clock noise
« Reply #2 on: February 09, 2017, 02:31:11 PM »
Thanks I'll give that a go

jonnygreentrees

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Re: Pork Barrel clock noise
« Reply #3 on: February 09, 2017, 03:40:38 PM »
Balls it is the wiring, when i move the PCB out the case the ticking goes away. Guess I'll have to rebox in a 1590BB :(

Jebus

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Re: Pork Barrel clock noise
« Reply #4 on: February 09, 2017, 06:49:06 PM »
Guess I'll have to rebox in a 1590BB :(

No need for that. Start by moving the wires around like sturgeo mentioned. You might find spot where it doesn't tic at all. Try moving them as far as possible from clock (IC3). If that doesn't help then you can try shielded wires for input and output (the shield connected to ground on one end, nowhere on the other).

jonnygreentrees

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Re: Pork Barrel clock noise
« Reply #5 on: February 10, 2017, 03:18:00 AM »
Already tried that and unfortunately there was no such spot.

I'll try shielded wires for input and output is that board I/O to switch or switch to I/O jacks or both?

Cheers

jonnygreentrees

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Re: Pork Barrel clock noise
« Reply #6 on: February 10, 2017, 03:25:13 AM »