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#1
02-08-2020, 08:37 PM
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I looked in my 1981 Photofact index and did not find it as CL-5. Look for a chassis # on the upper chassis. A photo of the markings would help.
__________________
“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes. 
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#2
02-09-2020, 07:23 PM
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That's a very interesting set. I poked around in Riders up through 1950 and did not see anything that matches that cabinet and knob layout. Is there a KCS number on the television chassis? Could it have been a custom job, or possibly they had another source of service literature for the clubman models? I suppose it could be in one of the early RCA red books.
 I found another VK thread that had that same set. If Chuck A is still around maybe he will chime in with some details. http://videokarma.org/showthread.php?t=248881 Last edited by Kevin Kuehn; 02-09-2020 at 07:47 PM.
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#3
02-10-2020, 01:53 PM
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Here are some images of the chassis numbers I can see in the set:
KCS-20B-1 Horizontal deflection chassis? KCS-24 RF-IF tuning chassis? CP-5200 Audio amplifier MI-6333C Speaker ??? Power supply KRK1 ??? Optical barrel With further research, I found an explanatory image of the RCA PTU from the 1947-1949 time period. This image is Chuck's from "MyVintageTV.com" I could not find the power supply chassis number or the optical barrel chassis number at this time. Last edited by amglow; 02-10-2020 at 01:58 PM.
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#5
02-10-2020, 03:14 PM
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Take a look at the factory service manual for the 648PTK. As well as Sams 90-9. Both on the ETF website.
https://www.earlytelevision.org/pdf/...ptk_manual.pdf https://www.earlytelevision.org/pdf/..._sams_90-9.pdf
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#7
02-10-2020, 03:26 PM
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There's a wealth of information in the RCA factory manual. Get ready for some heavy reading.
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