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Bryan,
After looking for it for another post, I just found my 1955-1966 RCA field service guide that covers the CTC-5 and others. There were a significant number of production changes that affect the CTC-5 chassis. The Field Service guide shows the Whitby as being either a CTC-5N or CTC-5P chassis, different in many ways than the CTC-5 and 5A. Two components in the oscillator are listed as changing value - C605 (at terminal "B" of the PW600 circuit board, where the oscillator tube is located) changed from 12pF to 5pF. R603 (at the sine coil) changed from an 82K to a 100K ohm. The component designations are from the RCA schematic, not Sams. These are production changes, not differences between the 5/A and the 5N/P chassis, and may be improvements that affect what you've been facing. I can loan you the Field Service Guide if you want to tear back into your (BEAUTIFUL) set someday - just PM me, I probably already have your address in my folder.
Cheers,
__________________
Brian
USN RET 22YRS (Avionics/Cal)
CET-Consumer Repair and Avionics ('88)
"Capacitor Cosmetologist since '79"
When fuses go to work, they quit!
Last edited by Findm-Keepm; 01-09-2009 at 03:56 PM.
Reason: clarification
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