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[QRZ] Help me understand where is audio hum coming from in this circuit
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on Wed Nov 10 20:04:15 2021
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Radio Circuits, Repair & Performance
///////////////////////////////////////////
Help me understand where is audio hum coming from in this circuit, please?
Posted: 10 Nov 2021 02:01 PM PST
https://forums.qrz.com/index.php?threads/help-me-understand-where-is-audio-hum-coming-from-in-this-circuit-please.787310/
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Puma Bit-Zero 23E 1296 MHz amplifier schematic diagram
Posted: 09 Nov 2021 09:27 PM PST
https://forums.qrz.com/index.php?threads/puma-bit-zero-23e-1296-mhz-amplifier-schematic-diagram.528811/
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