Re: PYE TT1 - First Transistor Portable UK TV
Good question. I don't think it did - I seem to remember it would give a stable output of around 11.6v and would do so with an input very close to that. Some of the alternatives wouldn't do that and would switch off if the battery voltage fell below 12v.
Goodness knows what was in the original three-pin block!
Baby 10, of course, refers to the screen size.
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