[R-390] Below 8Mc

Chuck Collins chuckcollins at prodigy.net
Wed Sep 28 01:12:21 EDT 2016


Hello all.
Trying to get this 390a to work below 8 Mhz.
I had a bad cap across the 1st osc coil and replaced it with a mica. I 
had a disconnected wire to J-221, a bad 1st osc tube, two brown beauties 
that doubled in value, 2 open resistors and a broken tuning slug. I have 
3 volts across T207 when it is tuned.
Any other common part failures in this area? I cant believe there is 
more I have to fix here! Basically I only have a tube tester, a Simpson 
260 and a Fluke multi-meter. -Chuck


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