I have an SX117 in reasonably good shape that has been on a shelf waiting for repair for years - like 20 years! The problem is that at least one of the 50khz IF transformers is open. I have taken it apart and it is not open anywhere that can be seen. The coil looks like it is scramble wound but it has a tap or actually two coils. On a good one, one side measures about 20 ohms and the other about 30 ohms. The wire size as near as I can determine is #36 enameled. The windings are encased in gook and the form is broken.
I have a (borrowed) coil winder and I have new a new form but it will be a guess as to the exact number of windings and also how to wind with the two coils (tap).
Knowing the wire size and resistance and form diameter I can get a rough idea as to number of turns.
I only found one reference to anyone else with this problem although it has to be more common than that. It was mentioned that the SX-96, the SX-100, and the SX-101 might have the same transformer. If so maybe I could find a junk unit to steal one from.
Has anyone wound one of these before or have any ideas on a replacement?
Doug,
I "may" have an SX-100 parts receiver. I know its not downstairs since I have look extensively for it in the storage area. Saying that, it may be in my outside parts building. When thinks warm up just a bit, I will look for it. If its not there, I gave it away when I had the GMS giveaway fester. So if you can wait a bit, I may be able to help.
Joe, GMS