[Johnson] Valiant II Problems

[Adrian Ellison]

Hello Brian,

I've seen the grid drive potentiometer problem before, you'll have to 
replace it.  When you've removed the original pot, open it and have a 
look, it's tracked along the wiper arm to the spindle!!

73 and good luck

Adrian
ZS1TTZ


BRIAN ROBERTS wrote:
> Hello Gents:
> I've picked up a basket case Valiant II, and am trying to get it back into operating condition.  It's a tedious process as there are a number of undocumented mods to the transmitter, and the previous owner is now a silent key.  Smoke tests have successfully produced smoke on a couple of occasions, but I'm puzzled as to why there would be arcing noises coming from within R-51 (grid drive control) along with some smoke.  The driver screen bypass and tube are not shorted.  Thanks.  Brian K9VKY
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