No, not a bad solder connection, What I meant was that you are using a lot of solid state

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In Reply to: RE: Loud squealing noise in new project posted by vetmedrobert@gmail.com on September 27, 2020 at 19:45:58:

Solid state devices can oscillate. Look at where you should have carbon comp resistors (suppressors) very close to the transistors and look at the lengths of your connecting wire. The oscillation is coming from one of the active elements. It should be easy to find if you have a meter.

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Follow Ups Full Thread

Topic - Loud squealing noise in new project - vetmedrobert@gmail.com 15:33:14 09/27/20 (3)

RE: Loud squealing noise in new project - Chip647 18:13:04 09/27/20 (2)

RE: Loud squealing noise in new project - vetmedrobert@gmail.com 19:45:58 09/27/20 (1)

No, not a bad solder connection, What I meant was that you are using a lot of solid state - Chip647 15:54:30 09/28/20 (0)

Follow Ups

No, not a bad solder connection, What I meant was that you are using a lot of solid state - Chip647 15:54:30 09/28/20 (0)

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