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01-17-2010, 09:19 PM
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1971 Magnavox 1T5034 19" B/W Hybrid
I found another set down at College, Buried under a bunch of junk up in the attic of the Auditorium. It's a 1971 Magnavox 19" B/W Hybrid.
 It's a hot chassis set with a solid state IF strip, Tuner, and video sections.  I powered up the set last night, and the filaments lit, and nothing more. I checked most of the voltage test points on the PCB and couldn't find b+ on any of them. I'm guessing that either the main electrolytic can or the rectifier diodes are shot. I ordered replacement electrolytics just to be safe. The wirewound resistors in the power supply tested good. I'm having trouble actually finding the rectifier diodes on this chassis. I'm guessing it's a voltage doubler circuit just based on it being a hot chassis set. It's a pretty crowded PCB. Is anyone here familiar with magnavox sets of this period?
__________________
This device isn't a spaceship, it's a time machine. It goes backwards, and forwards... it takes us to a place where we ache to go again. 
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