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Thanks Bill, the chassis # is KCS34B. The c.r.t. is a 12LP4. I don't have a pic of the chassis as we speak but I may get one soon. You seem to be familiar with the old RCA's. Well I'm not as familliar but got some experience working with the "ugly" 8T-243 that I have mentioned and the chassis seem to LOOK identical. Really it LOOKs as if I could trade c.r.t.'s and swap chassis if I wanted to. I suspect there are some component value differences. I really don't want to change the subject to chassis swaps. Right now power supplies are the issue. My 8T had power supply problems as well but they were cured with caps. Not so with this TC-127.
How much difference is the desirablilty in relation to c.r.t. size, if any? It just seems like every other set mentioned has a 10BP4. I know that is a common tube. Again my 12LP4 is a G-E rebuilt with no brightener so I think I am good to go there. I know it would be smart to find out before getting all involved in restoration but unfortunately my tube tester all works fine, exept the c.r.t. test. It used to work fine and suddenly stopped. Sometimes I think it is crazy to use diagnostic equipment that may need as much diagnosis as the repair job......
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