Quote:
Originally Posted by radiotvnut
It's bad.
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Yep. I replaced a bad 47uf@25 volt cap, and put in a temporary HOT, plugged it in and the squealing noise did not return.
Now here's my issue. I have lots of TV chassis boards, including one from a 36 inch Zenith that have good HOT's. However, trying to find one where all the ratings meet or exceed the BUH517...
Well, according to a datasheet I found, the BUH517 has a maximum collector to base voltage of 1700 volts. Every HOT I've looked up that I have only has a 1500 volt Collector to base voltage, and I can't find a datasheet for the HOT on the Zenith chassis. The numbers for the Zenith HOT are 1167-01.
I have a few 27 inch TV chassis with D2645 and D2634 HOt's, but they also only have a 1500 volt collector to base voltage.