[R-390] Mech Filters/Ohm Reading

Jon jonklinkhamer at comcast.net
Fri Apr 15 23:30:53 EDT 2005


Hello,

I'm wondering if anyone can answer a question for me. I'm basically going
over the IF Deck, which is out of the radio and at this point.  I'm taking
some ohm readings at J512 and everything checks out. Great. Now I took the
cover off the Mech filters and looking across the terminals expected about
40ohms according to the book. However I'm reading 0ohms across 3 out of the
4 filters. I'm getting nervous at this point. The 4th filter (4K) does
actually read 41 ohms. Another data point is that I lifted the cap off one
terminal of a filter that reads 0ohms and also took the wire off it. It
turns out that with the wire off I'm reading about 58 ohms with or without
the cap.  I'm going to bed now and saying a little pray. I guess I'm looking
for some help from the group. I'm preparing myself for the worst.
Thanks in advance,
Jon, KB1DC




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