[QRZ] Adjusting aged crystal filter passband?
 

Radio Circuits, Repair & Performance

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Adjusting aged crystal filter passband?

Posted: 22 Apr 2021 02:32 PM PDT
https://forums.qrz.com/index.php?thr...ssband.761164/



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Icom IC-7800 Internal Power Supply Schematic

Posted: 22 Apr 2021 06:04 AM PDT
https://forums.qrz.com/index.php?thr...ematic.761146/



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Kennwood TS-570D

Posted: 22 Apr 2021 04:07 AM PDT
https://forums.qrz.com/index.php?thr...s-570d.761109/