02-24-2008, 11:47 AM
Do these old sets generally keep their alignment somewhat?
No, not necessarily. As components age, their characteristics may change. This is most often seen in the case of original resistors (which tend to increase in value), and paper capacitors (which suffer from breakdown of the paper due to the acids in the paper). Coils, and that includes IF transformers, can also change their characteristics due to moisture absorption. And that does not even include some long-ago tinkerer just changing the alignment screws for fun...
Only other thing I'm wondering about is the 'feedback' winding I replaced on the oscillator coil. If I were a few turns off on that, would this have thrown the alignment off?
Yes. However, luckily for you, you are still able to get the radio aligned properly; and in the long run, that is all that really matters.
No, not necessarily. As components age, their characteristics may change. This is most often seen in the case of original resistors (which tend to increase in value), and paper capacitors (which suffer from breakdown of the paper due to the acids in the paper). Coils, and that includes IF transformers, can also change their characteristics due to moisture absorption. And that does not even include some long-ago tinkerer just changing the alignment screws for fun...
Only other thing I'm wondering about is the 'feedback' winding I replaced on the oscillator coil. If I were a few turns off on that, would this have thrown the alignment off?
Yes. However, luckily for you, you are still able to get the radio aligned properly; and in the long run, that is all that really matters.
--
Ron Ramirez
Ferdinand IN
