Quote:
Originally Posted by ggregg
Just picked up two Stromberg Carlson 620's in really neat Chinese cabinets from a fellow member. Couldn't pass them up. One has a 621A chassis and one is a 622. Only different that I can see is UHF and a slightly different flyback. I've always thought these cabinets were really neat. A little gaudy but neat.
Bringing the last one into the TV room, I necked it!!!  That whoosh is absolutely the worst sound. All the life being sucked out of your CRT in about 5 seconds. It was the set that was recapped too. Anyway, swapped the CRT's and we will see what we have. Anyone got a 21FP-4A? |
How did you manage to knock the neck off your set's CRT? I would think that would be impossible with the back on, because of the CRT cap; you must have had the cover off when you were moving the TV -- that or else the CRT cap was missing.
You were fortunate to have had another set with an identical CRT to swap into the TV you just recapped. That also must have been a terrible feeling, having put all that work into the set only to accidentally neck the CRT.
I'll be looking forward to seeing your next post regarding the 21FP4 you swapped into the set from the other one. If the replacement is identical or a recognized substitute, it should work.
Replacing a CRT with the same type as was originally in the set is always the best policy; in fact, Zenith put such a warning on the tube-layout charts of its TVs of the 1950s through the end of the tube era: "Replace tubes with same type as originally supplied." The same advice applies to
any TV, radio or other tube-powered device of any make or model. The use of substitutes for original tubes (including CRTs) is an emergency procedure, to be used only in case the correct tube(s) is/are not available.
BTW, if one of your sets has UHF, it must be post-April, 1964. I can't imagine Stromberg-Carlson including UHF tuners in its 1950s sets, unless they were selling them in TV markets with only UHF stations such as Youngstown, Ohio, et al.