I have a CTC 53A in very good condition and I am looking for a diagram.
it is also in the Canadian RCC manuals #143.
Thanks.:yes:

It is in Sams 1201-1. Try to get a freebee first. If you cant PM me.
I should have it for sale MUCH less than Sams. It will be an original
high Q paper copy not a crappy PDF or Xerox.

These are tube hungry sets. If it has a good jug they can throw a nice
pix BUT you need a really strong jug. They were low focus CRT,s....

73 Zeno:smoke:
LFOD !

Thanks Zeno,

I will give that lead a try,
My set has a real good CRT also I do have a new 24LQ6 amongst my tube stock
and the horizontal efficiency coil is in great shape (offten they are burnt to crispy critters).

Hi Red Raster. i do have rcc manual #143 but i dont see your set or in any index book i have. are you sure about that chassis# or book#?
RonL

oops! my bad that should be RCC 134

Thanks Zeno,

I will give that lead a try,
My set has a real good CRT also I do have a new 24LQ6 amongst my tube stock
and the horizontal efficiency coil is in great shape (offten they are burnt to crispy critters).

That chassis doesn't use a 24LQ6. It uses either a 31LQ6 or a 36MC6! :scratch2:

Not sure it doesnt Dj. 36MC6 used in later hybrids IIRC. There was a 14" & 19" all tube. IIRC the 14" used a plug in damper diode that went often & the 19" a tube. IIRC there was a differance in HV regs. also.. May explain the 24 or 31
filaments. One thing I know is ALL of them used those lousy 5GH8's. Always
have a sleeve ready when working on one !

73 Zeno:smoke:
LFOD !

That chassis doesn't use a 24LQ6. It uses either a 31LQ6 or a 36MC6! :scratch2:

Not sure it doesnt Dj. 36MC6 used in later hybrids IIRC. There was a 14" & 19" all tube. IIRC the 14" used a plug in damper diode that went often & the 19" a tube. IIRC there was a differance in HV regs. also.. May explain the 24 or 31
filaments. One thing I know is ALL of them used those lousy 5GH8's. Always
have a sleeve ready when working on one !

73 Zeno:smoke:
LFOD !

The chassis you're thinking of are the CTC22,36, the earlier hybrids. The 22 used the damper diode, where the 36 used a 6 volt damper tube with the heater working off the transformer that furnished the heater voltage for the CRT. I also remember the HV regulator tube in the chassis.
The CTC51,53 used 450ma series tube and not as many 6GH8's. The IF strips and audio circuits are solid state. :scratch2:

Hi Red Raster.ill check rcc 134 manual and get back to you. RonL

CTC53 chassis schmatic can be found in Electronics-Technicican Dealer, September 1973 Issue, TekFax 1487:

https://americanradiohistory.com/Archive-Radio-Retailing/70s/Electronic-Technician-1973-09.pdf

ALL RCA Chassis from 1964 to 1988ish are listed in the TekFax, and are available either in the ET-D magazines or the published collections Tekfax 104-116 available at ARH as well:

https://americanradiohistory.com/Radio_Retailing_Magazine.htm <-left side