Op Sat, 09 Oct 2010 14:53:03 +0300 schreef Marcel Kilgus
<[email protected]>:
Marcel Kilgus wrote:
Seems to be a faulty PTC.
I also have an old blurry Microvitec and have made some improvement by
adjusting the focus control.
Careful, it's near the power/high voltage block.
But what is a PTC?
Possibly:
http://en.wikipedia.org/wiki/Resettable_fuse
Erm, no. It's
http://en.wikipedia.org/wiki/Positive_temperature_coefficient
Ah, the article doesn't explain it as clearly as I would have thought,
it's basically a resistor that changes its value with the temperature.
A more appropriate article would probably be
http://en.wikipedia.org/wiki/Thermistor
Marcel
Thanks for the info.
Would this be easy to replace or is it CRT specific?
I haven't opened my Microvitec yet to look for it.
Bob
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The BSJR QL software site at: http://members.chello.nl/b.spelten/ql/
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