Quote:
Originally Posted by dtvmcdonald
I have a Pilot TV-37. Its got stray 60 Hz everywhere. I've verified that its there even if there is no B+ or B- because the rectifiers AC feeds are disconnected (but heaters are connected). Thus its heater line pickup. In most cases I verified that its not heater-cathode problems by moving tubes of the same type around.
I've also verified that a lot of the problem is modulation
of the RF in the tuner.
I managed to get OK pictures by careful adjustments. Its vitally important to get
the RF level in a good range: if the gain is too high or low it gets worse.
Thus, I need an external attenuator.
You can't really win. The set was designed for pictures that had a constant
average gray, and a constant contrast, no black or white screens. Give it such
a program, and its much happier!
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Yes, but does your do the Hula?
