[Milsurplus] R-1004/GRC-109 restoration
Matt P
mgpaulonis at gmail.com
Sun Dec 1 11:14:33 EST 2024
After seeing a few R-1004s go up for sale on the auction site, I thought
I'd take a closer look at my own to see what kind of condition it is in.
This is one of the lot that I picked up from the Fair Radio final auction,
so don't want to try putting power to in without a full set of tests.
Just performing the basic resistance tests from Figure 28 in the manual, I
don't get anywhere near the listed 15 Megohms on the B+ and signal lines,
more like 1 Megohm at best. I suspect those little black Aerovox caps (0.03
MFD, 400 VDC) that are all over the place are the culprits. Of course, the
first to go will be C58, the 4 MFD electrolytic in the AF Amplifier.
What has been the Group's collective experience getting one of these
receivers back on the air?
73,
Matt, W2NS
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