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I get the 1275 ohms between B+1 and pin-5 of the 6HQ5 and without the tube in place I get the full +285 volts of the power supply so there is a path to the plate. The AGC here is about 0.45V and that's consistent with the schematic, both pin-2 and pin-7 show continuity and I get about 55% on the tube tester, not stellar but it should pull some current.
According to the schematic when tuned to UHF the input from the UHF tuner is coupled directly to the grid of the 6HQ5 and from there gets passed to grid-1 of the pentode section of the 6HB7 osc/mix and that plate is coupled to the tuner IF output coil and out thru a .001uf cap. Feeding in a weak IF from an external source gets amplified and sent to the IF strip so I know things are doing what they should which doesn't make much sense considering how little current the RF amp tube is taking.
I have two NOS 6HQ5 and 6HB7 tubes on the way and once verified in the tester they're destined for the sockets, until then I have a color issue to iron out in the 3.58 chroma bandpass amp and this isn't the first time for the problem.
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