No HV, boost on CTC-22

[old_coot88]

Ditto what Zeno said about the ss damper diode. It was THE BIGGEST failure point when those sets were new. The replacement was a paralleled double unit and seemed to hold up OK.

[ARC Tech-109]

That CTC22 was an oddball in it's day with that low voltage focus and semi hybrid design, I had the factory study guides and recall the mention of the damper diodes in the fuse clip. It's the set mentioned in the back schematics of the RCA Receiving Tube manual and it gives an excellent breakdown of the circuits, far better than the Sams in that respect.

[Jon1967us]

Originally Posted by ARC Tech-109

That CTC22 was an oddball in it's day with that low voltage focus and semi hybrid design, I had the factory study guides and recall the mention of the damper diodes in the fuse clip. It's the set mentioned in the back schematics of the RCA Receiving Tube manual and it gives an excellent breakdown of the circuits, far better than the Sams in that respect.

Would you be able to post a scan of it?

[ARC Tech-109]

Give me a few days on this, its not an easy one and I'd have to post hi-res pics but it can be done.

[Tom9589]

The specific RCA Tube Manual which contains the schematics and discussion of the CTC-22 chassis is RC-30 and was copyrighted in 1975.

[Jon1967us]

Originally Posted by Tom9589

The specific RCA Tube Manual which contains the schematics and discussion of the CTC-22 chassis is RC-30 and was copyrighted in 1975.

Looks like I found it! It was on worldradiohistory.com

https://worldradiohistory.com/BOOKSH...1975-RC-30.pdf

Thanks.

[ARC Tech-109]

You deserve 5 Gold Stars for this find! That was my bible growing up...

[Jon1967us]

Originally Posted by ARC Tech-109

You deserve 5 Gold Stars for this find! That was my bible growing up...