Hi everyone,
I got myself a Morley Power-Wah-Volume and it makes a very noticeable switch/popping noise. As anyone an idea what this might cause?
It uses a mechanical switch to go between Volume and Wah, at least that´s what the schematic suggests...
Cheers, Florian
Morley Power-Wah-Volume Switch-Pop
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mictester
- Old Solderhand
Information
If either C3 or C12 leaks, you'll get DC on the switch. A quick check would be to get your multimeter on to W4, 5, 6 of the footswitch - there should be NO DC on there at all. Check it with the pedal isolated from the rest of your rig (but powered up of course), then test again with it connected up to the rest of your kit. The DC might be coming from elsewhere! -
"Why is it humming?" "Because it doesn't know the words!"
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FloPoeKo
- Breadboard Brother
Hey Micester, the switch was faulty. I replaced it, works with no pop. But thanks for the insight on the DC-Measurement, that puzzled me a long time what to look for. I will put that to use in the future...mictester wrote:If either C3 or C12 leaks, you'll get DC on the switch. A quick check would be to get your multimeter on to W4, 5, 6 of the footswitch - there should be NO DC on there at all. Check it with the pedal isolated from the rest of your rig (but powered up of course), then test again with it connected up to the rest of your kit. The DC might be coming from elsewhere! -