01-03-2014, 09:41 PM
Progress report:
I remove the oscillator coil tonight (again). Pulled the tertiary winding from the center of the coil, and then proceeded to remove 10 turns from the tuned secondary winding. Reassembled and reinstalled in the radio, tack soldering the wires to it as I assumed it would have to come out again.
Results: 1200 kc now comes in at 120 on the dial - but the oscillator (high frequency) screw is still all the way out on the tuning condenser to achieve this. My SSTRAN, at 660 kc, comes in at 70 on the dial, and that is with the low frequency padder wide open as well.
So it appears some more turns need to come off.
I think tomorrow or Sunday, when I work on it again, I'll try just five more turns. I don't want to go too far, now that I'm getting close...
I also oiled the tuning condenser bushings/ball bearings, which helped the cutting out a great deal; it is nearly eliminated now. Perhaps after the oil has a chance to soak in, it will be even better.
I remove the oscillator coil tonight (again). Pulled the tertiary winding from the center of the coil, and then proceeded to remove 10 turns from the tuned secondary winding. Reassembled and reinstalled in the radio, tack soldering the wires to it as I assumed it would have to come out again.
Results: 1200 kc now comes in at 120 on the dial - but the oscillator (high frequency) screw is still all the way out on the tuning condenser to achieve this. My SSTRAN, at 660 kc, comes in at 70 on the dial, and that is with the low frequency padder wide open as well.
So it appears some more turns need to come off.
I think tomorrow or Sunday, when I work on it again, I'll try just five more turns. I don't want to go too far, now that I'm getting close...
I also oiled the tuning condenser bushings/ball bearings, which helped the cutting out a great deal; it is nearly eliminated now. Perhaps after the oil has a chance to soak in, it will be even better.
--
Ron Ramirez
Ferdinand IN
