I posted one video on Tube Squeal that focused on the 2nd stage preamp. This video focuses squeal and hum produced by the 1st stage. The cathode resistor is not just a way to set bias, it is the feedback circuit, therefore, grounding the feedback circuit correctly is important. I also discuss 3 basic preamp grounding configurations.
Original Work, Copyright 2022 James D. Whiteside, II all rights reserved, For consideration only, no reproduction without prior permission.
Original Work, Copyright 2022 James D. Whiteside, II all rights reserved, For consideration only, no reproduction without prior permission.
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