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#1
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Reviving original South Australian B&W TV.
Good evening all.
I obtained an indigenous brand "Kriesler" B&W TV which is dated inside from 1959. Bearing in mind that TV broadcasts in South Australia did not begin until 1959, I reckon I've got one of the first TVs in the state! I have had a few of this brand before and have usually been able to get them going - in fact a 3-in-1 from 1964 takes pride of place in my kitchen, and is regularly used.They are branded on the back "The best in sight and sound" and were about the priciest in their day. After replacing the big rating capacitors ( which I usually do), the picture, which previously was the usual "line across the screen", after a while became a little higher. A friend who knows a lot more than me had a go at it this Saturday, and stated that the voltages are way down, and the cause was most likely the pair of valves used for the rectifier. They are 6N3s and don't seem to be very common. He replaced them with diodes, but this resulted in an instant fuse blow, so I called the job off. I think that I would need to find some new replacement rectifier valves, but am open to suggestions. I can post a scan of the circuit diagram, if necessary. Cheers from no longer daylight saving South Australia! Alan Merritt |
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#2
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Welcome to AK, pal ! I'm certain one of our resident TV gurus will pipe up w/info to help you...That certainly sounds like a TV worth saving. Can you post a pic of it ? Good luck w/it...
__________________
Benevolent Despot |
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#3
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Alan, I would say there is more likely a short or overload somewhere in the set and the problem is in one of the circuits and not the power supply itself...if there are still any old capacitors in there they may be leaky and causing an overload.
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