[Test-Equipment] AN/PRM-10 Question

Ron Youvan ka4inm at tampabay.rr.com
Sun Oct 30 16:51:14 EDT 2011


   Richard Knoppow WB6KBL  dickburk at ix.netcom.com wrote:

>       I recently got an AN/PRM-10 Grid Dip Meter, it worked
> OK when it arrived but had an intermittent of some sort. I
> got it to work and then it stopped altogether. The only
> thing I can find is that the cathode to ground resistance of
> the oscillator tube is wrong. This is a small choke going
> from ground to a pin on the tube. The book states this
> should measure 42 ohms in the resistance chart and "about 50
> ohms" in the text but I measure about half an ohm. I can't
> see how this choke could short, it appears to be a single
> layer solenoid.

   A single layer solenoid cannot be forty anything Ohms,
it has been replaced by the factory or later.
   Did you try another tube?  (assuming it uses a tube)
-- 
    Ron  KA4INM - Did you know ...
                  ... that no-one ever reads these things?


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