Reece PM me this...
Quote:
"You say it's working: how well, what does it need now? With 10 or 20 feet of antenna it should pick up locals during the day and plenty of distance ones during the night as it has 2 IF stages and was a farm set, made for out in the boonies. Do you get OK volume? Do the stations come in where they should on the dial?
Try an alignment tweak: I think the rear condenser gang on this set is the oscillator. If the stations aren't where they should to be on the dial, tune one in near 1400 that you know the frequency of. With a small screwdriver carefully adjust the rear trimmer on top of the condenser a tiny bit either way. The station will move and you can turn the dial to follow it up or down wherever it needs to go.
Once the stations at the top of the dial are where they ought to be, tune in a weak station somewhere from 1400 to 1600 and carefully adjust the front trimmer on the condenser for maximum volume.
There's a trimmer in the middle of the underside of the chassis next to a coil, and I think that's the padder for the low end of the dial: if a station around 550 to 650 isn't where it should be, I think that trimmer will move it. The oscillator trimmer and the padder will somewhat interact so you may need to go back and forth a few times.
Next tune in a very weak station near the top end of the dial. Use a non-metallic screwdriver or take a small screwdriver and wrap tape around the bottom, just barely leave the tip exposed. Topside of the set: adjust the trimmer on top of the round can for max volume. It shouldn't take more than 1/8 or 1/4 turn either way to max it. Then do the same with the 2 trimmers in the top of the other two square cans.
If you didn't do it yet, squirt cleaner on the tube pins and plug in and out of sockets while wet.
What about the speaker? Wasn't it dragging on the pole piece? There are ways to fix that depending on what's happening."
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I haven't run 20 ft of antenna wire yet. I'll tackle that tomorrow. I have the unit in my basement at the moment with 10ft wire attached to a copper wire wrapped >< (crisscrossed) antenna. I was able to adjust AM 1390 sports to it's proper place on the dial, as well as 960 news talk station. There are quite a few stations that are weak that I should be able to pick with higher antenna placement.
Volume is adequate.
All the sockets have been "deoxit-ized".
The speaker seems to be fine. It has that "classic" AM sound.
The mechanical sound that it had before is gone.
The dial light is not functioning. The bulb filament looks intact.
Before I try a bulb swap, what kind of voltages should I be seeing at its base?
At the moment it's...-.013mV DC. The supply wire terminates at the (utah) 50 ohm wire wound resistor.
Thanks
Martin