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I bought a Sony single tube projector on eBay that had an Indextron tube in it. It worked for about 10 min after taking out of the box. I started troubleshooting it without a schematic, scratching my head saying to myself what the hell? What’s all this digital stuff doing in the video circuit? Why is there only one video feed to the CRT socket board? I had no idea an Indextron existed. So I got out the ESR meter and changed the bad caps and it worked. It was not until after I sold the damn thing that I figured out what it was and how it worked.
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05-03-2011, 11:00 PM
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