Hum when using headphone

December 28th 03, 12:34 AM

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Hum when using headphone

I have a backgound hum when listening to short wave on my RS66
radio with headphones. Is there a modification I can make to the
headphone jack to eliminate the hum? The headphones do not have the
hum when I use them on my other radios. Is this an impedance matching
problem?

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