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August 21, 2019, 04:50:29 AM

Author Topic: Need Help Trouble Shooting intermittent loud distortion in left channel  (Read 449 times)

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Offline JDeiner

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I cheated and bought the already assembled reduction prototype unit from Bottlehead. I have built a stereomor and a Crack headphone amp. All three sound great.

I started losing a channel on the reduction about a month ago and ordered new tubes. The problem cleared up but now I am getting occasional loud distortion out of the left channel. It comes and goes and can be eliminated temporarily by turning the unit on and off again (totally annoying - loud pop and then the distortion goes away).

I switched the tubes  to see if they were the problem and the distortion still only came out of the left channel. I am assuming a bad cap, but I am not an expert and not sure where to start.

Any advice on troubleshooting this would be appreciated.

Online Paul Birkeland

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If you bought the prototype from us, I would recommend returning it for repairs.  Otherwise a voltage check is the place to start, but often times the prototypes will vary just enough that the manual for the production kit isn't quite accurate.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline JDeiner

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Will do.