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#7
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I had some free time this weekend, so I opened up the Porta Color. I find these non-solid state TVs breathtakingly beautiful on the inside when compared to a solid state TV. A solid state TV is like a quartz clock's insides, whereas a tube TV is like a mechanical clock.
![]() ![]() ![]() Next weekend, I will use compressed air and soft paint brushes to slowly work away the dust, filth, and grime like an archaeologist using brushes to slowly unearth ancient artifacts. ![]() This is the flyback transformer and ultor rectifier diode. Being a budget-grade TV, there is no high voltage regulator, no voltage multiplier either. That would take up space and cost more money. ![]() This is a magnified view of the face of the CRT. It is the more fine grained dot mask type, versus the more coarse grained slot mask type. I will hook this up to my BK 490b CRT Tester to see how it has aged. ![]() The model number was once stamped, in ink, on the back of the TV. I think I can make out the suffix of the model number "HWD-1", but the prefix is not visible. Maybe a blacklight would help? ![]() The tube heater schematic label inside the TV says that it is an "HC" chassis, and the CRT is 11SP22. Does anybody have the Photofacts for an HC chassis GE Porta Color? For TVs this old, since new capacitors are still being manufactured, I prefer to replace all electrolytic capacitors, paper capacitors, and oil capacitors. I try to keep the original tubes since they are not getting manufactured anymore, so it is wasteful to just throw away the original tubes. However, I do like to order a spare for each tube. So I need more than just the Photofacts schematic. I also need the parts list, where the Photofacts clearly enumerates the different types of capacitors, and also shows a photo of where to find them in the chassis. |
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