11-26-2015, 09:40 AM
OK. Here's what I got. I can't get a solid ohms reading on the oscillator coil. If I push on the oscillator section of the bandswitch, I can get it temporarily to settle down, but it won't stay that way.
In other news, the silly thing decided, twice tonight, to start working on the AMBCB. It did so the second time long enough for me to attempt a calibration. I managed to get everything above 1000 KHz to track well, but below that everything was quite high (e.g. 603 KHz tuned in at around 650, and nothing I could do with the low end trimmer would get it any lower. It WOULD, however, bring it UP as high as 800... There doesn't seem to be any fixed capacitance in that part of the circuit that would be affecting it that I can find. But, I'll keep trying.
In other news, the silly thing decided, twice tonight, to start working on the AMBCB. It did so the second time long enough for me to attempt a calibration. I managed to get everything above 1000 KHz to track well, but below that everything was quite high (e.g. 603 KHz tuned in at around 650, and nothing I could do with the low end trimmer would get it any lower. It WOULD, however, bring it UP as high as 800... There doesn't seem to be any fixed capacitance in that part of the circuit that would be affecting it that I can find. But, I'll keep trying.
