[ForSale-Swap] Door knob caps needed

Dan Evans dan.evans at insightbb.com
Thu May 20 21:11:15 EDT 2010


I'm rebuilding an MN7000 matching network for the Cushcraft R-7000 
vertical.

The previous owner thought it was damaged by lightning.  I think it was 
more likely moisture in the matching box and running high power into a 
high SWR, but who knows...   Anyway, there is extensive damage to the 
circuit board, many of the traces are just gone.   But the good news is 
most of the components seem to be fine.  The RF choke is a little 
discolored, but seems to be OK.  And the baluns (there are two) seem to 
be fine.  But, there are 2 ceramic caps that are missing.

 From the research I have done, the ceramic caps in this design are 
marginal to begin with, so I would like to replace them with something a 
bit beefier...

So, I'm looking for a 50pF and a 27pF door knob cap.   Anyone have 
extras you would care to part with?  I hate to pay a minimum order just 
for a couple of caps.

Thanks,

73
Dan
-- 
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