[R-390] R-390 Audio Transformers

[Danny Lunstrum]

Good Morning Group,

I have just begun restoring an R-390 (non-A) and started with the power supply/audio unit.  It has an audio mod I would like to take out to make it original.  To do this, I need two audio output transformers.

I bought another audio unit some months ago, and believe it or not, all three of the audio output transformers are bad.  None of them show any DC continuity through the windings.

I have a spare audio unit out of an R-390A that has two good transformers on it.  The electrical characteristics are approximately the same, but I hate to tear up what looks like a nice audio unit.

Does anyone have a couple of audio output transformers, part #TF1A13YY (Motorola p/n 325A107), or the equivalent of,  they would be willing to part with?

Please reply off list with the condition and price.

Thanks,

Dan Lunstrum,  KA0OPU