[Elecraft] New KX1 low power and 20m oscillation
Stan Gibbs
stan at ajaxsoftware.com
Tue May 8 22:25:57 EDT 2012
Don, I tried your experiment but it had no effect. I just grounded point A
because it is damn hard to jumper Q7. R28 measures good and is well
soldered. It has -0.25V or so on the base side and 5.5V on the other during
transmit.
I also tried reducing the drive pot and, while the signal definitely
declined in amplitude, the sidebands were still present.
Could this just be an artifact of using my K3/P3 to view the waveform? If
so, why would the 40m signal be so different?
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73, Stan - KR7C
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