Boneyard whistle in high gain channel

[matiasbatty]

Hello, I've built other and I never had happened.
I have a Whistle in the high gain channel when I put the pickup in the bridge single coil strat
I used the modified version and a MAX1044

Any solution?

Thank you!

[mgwhit]

There have been a stream of these whining Boneyards lately.  Search and you should find several threads.  I would recommend (a.) subbing a TC1044SCPA, and (b.) lowering the overall gain by subbing 100R for R5 and 1uF for C5.

[Haberdasher]

I think there were some suggestions and solutions offered in this thread.  It may be worth reading.

[matiasbatty]

Thank you very much, now I'll check the threads.
What strikes me is that with the other mic positions I have no problems, only appears the beep with the bridge pickup

[matiasbatty]

Hello, I created two more boneyard and have had no problems beep. I'll redo the pcb that beep full cap may be some in which some coupling this filtering.

Sorry for my English