[Elecraft] KX1: 40M low power, 20 not working on transmit
John Donovan
jdonovan43 at gmail.com
Sat Sep 3 12:19:58 EDT 2011
I just finished building my KX1 and the receiver works great. I get 2W
out on 40 but nothing measurable on 20. The odd thing is in receive on
the base of Q4 I get 2x the signal on 20 that I do on 40; OTOH when I go
into TUNE mode that signal ramps way up on 40 but remains insignificant
on 20; by the collector of Q5 it's barely there. I checked the voltages
on Q1/4/5/6 and they're OK, except that the source of Q1 is only 1.2V. I
checked solder joints and they all seem fine; ditto inductors, though T1
looks to be a tricky bit of work.
Any suggestions would be greatly appreciated. I'd hoped to take this rig
camping with me this Labor Day weekend, but it doesn't look like that's
going to happen.
73,
John K6YLG
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