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			 Radio Circuits, Repair & Performance /////////////////////////////////////////// Adjusting aged crystal filter passband? Posted: 22 Apr 2021 02:32 PM PDT https://forums.qrz.com/index.php?thr...ssband.761164/ /////////////////////////////////////////// Icom IC-7800 Internal Power Supply Schematic Posted: 22 Apr 2021 06:04 AM PDT https://forums.qrz.com/index.php?thr...ematic.761146/ /////////////////////////////////////////// Kennwood TS-570D Posted: 22 Apr 2021 04:07 AM PDT https://forums.qrz.com/index.php?thr...s-570d.761109/  | 
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