Quote:
Originally Posted by old_tv_nut
It puzzles me that both AM and FM are off, and in the same way. That still seems like a mechanical problem. Is the amount of physical offset of the pointer the same for AM and FM, or different?
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There was a typo on the initial posting, the AM Band is actually between ~140-240 kHz off from where the stations should be on the dial (this is an approximation because I can't tell where the pointer is actually pointing to exactly on the dial because its an analog dial and I'm not really sure how you tell where exactly the needle is pointing down to the exact 10 kHz marking interval (e. g. 1200 vs 1230 on the dial), but I was guessing where the pointer was at by where it looked like it was at on the dial in reference to the next closest marking.
the FM Dial is off by 4 Mhz by the looks of things and where the strongest local stations are showing up on the dial in relation to where they should be on the dial (104.7 MHz is a local 50kW FM Blowtorch station that covers most of the state of Indiana with many repeater stations, and it was showing on this radio's dial at the 100.7 MHz mark on the dial which is 4Mhz down from where it should be on the dial, and that's where a local country music station should be on the dial called B100 (100.7 FM).
As for the main tuner pulley attached to the tuning condenser shaft goes, yes that pulley does have set screws but they have noot been touched ever (they still have the original thread lock glue on the set screws yet and its untouched, the FM Tuner section uses one of those old Gorler slug-tuned tuner assemblies, and the AM band is the tuned on the tuning condenser.
Also I forgot to mention but the 12BE6 tube (V2 on the tube location diagram on the back of the radio) had been replaced with a 12BA6 at some point in time in the radio's life which I'm not sure if that would affect things in this radio or not (I have since replaced it with the proper 12BE6 tube, but I'm not sure what that tube does in this radio since I don't have access to the Sams for this radio, so for I know that tube being replaced with the wrong tube could of messed up the original alignment and someone may have tweaked the original alignment to make it work with that 12BA6 that was installed in there.
I hope this helps you understand where things are with this radio.