Quote:
Originally Posted by leadlike
You could even have a bad power cord-my test ocillator was dead, and after poking around it for hours, trying to find out why it died right after powerup-yup, the powercord was heating up, going high resistance, and killing the oscillator.
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I had a bizarre case in the shop one time, a series-string B&W TV that was turning itself on and off, not abruptly like with the switch, but fading in and out. The heater string was doing it. Finally traced it to the CRT heater which was "blinkering" by thermal expansion/contraction just like an auto turn signal blinker. Never seen a case of that before or since.