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Old 19th Aug 2019, 8:46 pm   #10
stitch1
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Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 584
Default Re: Spitfire Am Transmitter Hum (Buzz)

This doesn’t help you as you’ve attached an earth but I had a similar problem and it was an earthing issue once I grounded the TXer it worked fine.

I assume when you say tried all inputs you’ve tried a different cable?

John
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