Excellent!
Exactly what I needed, thanks W9GT and fellows.
I'm operating on the Gray Hair Net tonight, then the xformer comes right out for testing.
Unless some miracle has occurred, and the guys give me a good report, Bessie's got a bad mod xformer.
As you said Jack, its tough to tell without swapping out xformers, but I'm thinking that I've checked the low level stages pretty well.
This transmitter has been a real learning experience in so many ways. From figuring out the exciter, to the output network loading scheme, building the T/R switching network, to bench testing the speech amp, I've learned a ton from the old girl. I always learn better by reading and then doing, rather than reading alone. This has been quite an education along the way.
Always great info and helpful folks on here, I do appreciate it greatly!
I've not had much experience with defective modulation xformers, so this is a real learning experience.
73 all,
Bruce