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| RCA VICTOR KCS 81 F | |||||||||||||||||
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| I SCORED THIS AT THE 2005 EARLY TELEVISION FOUNDATION CONVENTION AND SWAPMEET. THIS SET USES A 21AP4 METAL SHELL CRT. I PUT THE TESTER ON THE CRT AND THE EMISSION BARELY READ. THIS IS TYPICAL OF A CRT THAT HAS BEEN DORMANT FOR YEARS. I RAISED THE HEATER VOLTAGE TO 8 VOLTS AND THE EMISSION ROSE. THE FACT THAT THE HEATERS DIDN'T VAPORIZE WHEN I PUT THE CHECKER ON TELLS ME THE TUBE IS STULL UNDER VACUUM. I WILL USE A TEST CRT WHEN I RESTORE THIS SET FOR SAFETY REASONS. WHEN I CLEAN THE CABINET, I WILL PULL THE CRT AND GET A SHOT. YOU DO NOT WANT TO TOUCH IT WHEN THE SET IS ON. IT WILL HURT. I WILL PUT THIS ON THE VARIAC (WITH TEST TUBE). I ALSO FOUND A TELLAIDES MANUAL FOR RCA, WHICH COVERS THIS SERIES. THE SET WILL GET A FULL RECAP. ANY BAD TUBES WILL BE REPLACED. THE CABINET JUST NEEDS SOME TOUCHUP. THIS IS RECAPPED, BUT THE VERTICAL AND HORIZONTAL SYNC WILL NOT LOCK. |
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| CHASSIS BEFORE RECAPPING. | |||||||||||||||||
| THIS IS THE 21AP4 METAL CONE CRT. YOU DO NOT WANT TO TOUCH THIS WHILE THE SET IS OPERATING. IT WILL BE SHOCKING. THE CONE WILL BE CHARGED WITH LOTS OF VOLTAGE. | |||||||||||||||||
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| 19 NOV 2005 UPDATE. A FELLOW POSTER AT AUDIOKARMA SENT ME A SAMS FOR THIS SET. THE TELLAIDES WERE HARD TO READ. ANOTHER COLLECTOR RESTORING AN RCA FROM THE SAME ERA HAD PROBLEMS LIKE I HAVE. I CAN'T GET THE VERTICAL OR HORIZONTAL HOLDS TO LOCK. I THINK I MAY HAVE MISTAKEN MICA CAPS FOR MICAMOLDS. I WILL REPLACE EVERY ONE IN THE SYNC CIRCUIT. IF THAT WORKS, I CAN CALL THIS DONE. I GET A NICE PICTURE ON THE 5AXP4 TEST CRT. | |||||||||||||||||
| NEXT PAGE THE COLLECTION RCA INDEX | |||||||||||||||||