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#1
February 21st 08, 08:39 PM
posted to rec.radio.amateur.boatanchors
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Hum on AM HF receiver
Most of the strong AM signals received on my National HRO are affected by hum.
I put a ceramic capacitor in parallel to each of the 80-type vacuum diodes with no noticeable improvement. Does anyone remember which other cure was proposed to solve the problem? 73 Tony, I0JX |
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