That was going to be my next guess too Martin, that the amp was oscillating for some reason and poor decoupling filter wise would sure do that!
Note that even through my 59 year old eyes are still pretty darn good I all ways, and with out fail check all 1/2 watt size on down resistors values with a ohm meter before I install them as the extra 4 seconds can end up saving 4 hours on hair pulling when a issue turns up!
Help: 5F1 build flutters and buzzes on power up
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Stevem
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Re: Help: 5F1 build flutters and buzzes on power up
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!