[Steve D]

I have recently finished refurbishing a 37-610T with new caps, etc and performed a complete alignment. When doing the alignment I noticed that the level of signal from my signal generator required to give similar voltmeter readings on the plate of the 6F6 output tube as for the SW bands was about 5-10 times higher. The osc. and antenna coils seemed to adjust properly but when receiving stations I get much stronger reception connecting the antenna wire to the grid of the 6A8 converter tube rather than to the antenna input strip.

I ohm'ed out the BC antenna coil and the readings are spot on for both primary and secondary and there is infinite (>10M) resistance between them. Could this coil have a shorted turn which would show a negligible difference in DC resistance but ruin RF coupling? Is there an easy way to check for a shorted turn other than removing the coil and examining it?

Thanks,

Steve D