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Model 60 6A7 oscilator distortion
koosh01
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Posts: 2
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Joined: Aug 2018
City: Arlington Heights State, Province, Country: IL
#4

11-29-2018, 06:13 PM
Hi Terry,

The oscillator coil checked out ok. However, I found out that moving and separating the wires connecting the 6A7 to the oscillator coil, antenna coil, and band switch from each other as much as possible, I was able to eliminate almost all of the distortion and reduce the across-band attenuation considerably. Now the oscillator waveform is pretty clean and the amplitude only drops about 3 dB from 550 KHz to 1600 KHz. I guess there was some stray cross-coupling that was causing the distortion. The factory wiring layout of the stock Model 60 leaves something to be desired. The radio works great now. Thanks.
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Model 60 6A7 oscilator distortion - by koosh01 - 11-28-2018, 03:53 PM
RE: Model 60 6A7 oscilator distortion - by koosh01 - 11-29-2018, 06:13 PM
RE: Model 60 6A7 oscilator distortion - by AI2V - 12-29-2018, 04:55 PM



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