Today's Mystery Guest (RCA CTC-4)

[old_coot88]

Getting the 3.58 osc running should be the #1 objective, irrespective of whatever other gremlins may still be lurking.

[Phil Nelson]

I'm open to suggestions about how to get that oscillator working. There aren't a lot of other components connected to that tube, other than a couple of ceramic caps and a few resistors.

Phil Nelson

[Pete Deksnis]

Originally Posted by Phil Nelson

I'm open to suggestions about how to get that oscillator working. There aren't a lot of other components connected to that tube, other than a couple of ceramic caps and a few resistors.

Phil Nelson

Phil, I'm also fighting a chroma-AFC problem in a friend's CT-100. It exhibits a similar off-color operation. In my case the oscillator is functional and the CW to the demodulators is there and at the proper amplitude. And, as well as can be seen on a scope, the CW is in quadrature at the demodulators.

As has been suggested here with your problem, I will next concentrate on insuring the Reactance inductor and circuit are working properly.

Closed loops are tough cookies to crack at times!

Pete