Quote:
Originally Posted by Robb
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How do you know the set "works"?
Your Youtube video shows the set getting nothing at all on any channel except snow.
BTW, in the '70s I had a Sharp 12" portable, model TU-40PA, but with the controls mounted horizontally above the CRT, a monopole VHF antenna, and an earphone jack. Worked well at first, and I enjoyed watching it, but after a couple years the VHF tuner developed a problem (a poor connection, I suspect), although after 40 years I don't remember anymore; I could get the set to make a picture by wedging a screwdriver between the tuner shaft and the cabinet, but later the TV developed another problem (don't remember what) and I finally wound up junking it. I would think that TV would have lasted at least five or perhaps ten years with only an occasional tube replacement, if that. That set was built in the NTSC era and, supposedly, was made to last, so I would have expected it to work at least through the '70s and perhaps most of the '80s. However, with most of the set on a PC board, it might have developed serious problems anyway after a short time due to the horizontal output and other high-power tubes (such as the audio output tube) generating so much heat. I lost a CTC-12 RCA clone color TV in the early '70s when the video output board cracked, probably due to high heat inside the set and other factors (such as the materials early PC boards were made of, which I suspect was phenolic that doesn't stand up well to high temperatures).