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#10
09-06-2014, 02:00 AM
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Jon-
Yes, it should be possible to directly connect a composite-video signal, BUT: Of course, an isolation transformer MUST be used to power the set during such a test (and, in fact, during all service of these sets!). The logical place to connect video is to the control grid (pin 1) of the video amplifier tube, a 6AU6. Knowing that your set can do that same "out of phase but jitter-free" trick is good to know; that means it is not a unique quirk to my set. One of these days, I need to get back into troubleshooting my TS-4D, and not just reading and posting. 
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Chris Quote from another forum: "(Antique TV collecting) always seemed to me to be a fringe hobby that only weirdos did." 
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