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PaulR · 30th Nov 2022, 2:11 pm

Well, the anode load resistor on the EABC80 was well out of spec (over IM as opposed to 680K) but changing it hasn't helped unfortunately.

I also wondered about noisy resistors and went over it with a freeze spray but nothing made any difference. I have changed all the waxy capacitors but not the lower value disk ones. There are a couple of flat brown moulded ones which I left in place. They are 100pF. I went over my soldering again just in case.

The set works so well other than the noise that I am sure that something must be staring me in the face.

30th Nov 2022, 2:11 pm	#7
PaulR Dekatron Join Date: Oct 2003 Location: Southport Lancashire, UK. Posts: 3,233	Re: Cossor 524 rustling noise on FM Well, the anode load resistor on the EABC80 was well out of spec (over IM as opposed to 680K) but changing it hasn't helped unfortunately. I also wondered about noisy resistors and went over it with a freeze spray but nothing made any difference. I have changed all the waxy capacitors but not the lower value disk ones. There are a couple of flat brown moulded ones which I left in place. They are 100pF. I went over my soldering again just in case. The set works so well other than the noise that I am sure that something must be staring me in the face. __________________ Paul