I got a problem with my Crybaby Wah and Boss SD-1 pedals. With the Wah into the SD-1 and both pedals "on" I have a squeal coming out as well as the guitar signal. The frequency of the squeal is varied by rocking the wha pedal. With the SD-1 off, I just get the wah sound. My SD-1 pedal has that faint clean sound in the background when it is on. The Crybaby wha has a buffer on its output. This wah, into a DS-1 doesn't squeal. Both pedals are powered from the same source which is regulated and clean. Anyone have an idea to solve this? Thanks in advance for any help.
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Crybaby + SD-1 = squeal
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Originally posted by ronh View PostI got a problem with my Crybaby Wah and Boss SD-1 pedals. With the Wah into the SD-1 and both pedals "on" I have a squeal coming out as well as the guitar signal. The frequency of the squeal is varied by rocking the wha pedal. With the SD-1 off, I just get the wah sound. My SD-1 pedal has that faint clean sound in the background when it is on. The Crybaby wha has a buffer on its output. This wah, into a DS-1 doesn't squeal. Both pedals are powered from the same source which is regulated and clean. Anyone have an idea to solve this? Thanks in advance for any help.
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Fixed it
I fixed my problem but I dont know why the fix worked. I replaced D8 in the SD-1 pedal. This stopped the clean signal from appearing with the distorted signal out of the pedal. D8 connects to the gate of the first FET switch. Was it leaky or dropping more voltage? There was thread here awhile back about having the two signals out at the same time. Someone said it was because the FET was not turning off enough to stop leakage of signal. File this one under quick repair.
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