Quote:
Originally Posted by Electronic M
Fun, but don't do it under florescent, sunlight, and possibly other light sources. IIRC the photomult pickup tube (which ain't common or cheap) is easily damaged by UV produced by florescent lighting (and other sources).
|
Do you have a source for this info? Bright light sources in general aren't good for PMTs, as they cause permanently increased dark current and noise output, particularly in very high gain/low light types (which the one in a TV analyst isn't). But in the specific case of the TV analysts, other than a few seconds recovery time after closing the lid, I have never noticed anything in the way of permanent effects. As far as UV goes, the P16 phosphor used in the analyst CRT is largely a UV source, with only a dim output in the purple end of the visible spectrum.
The PMT used in the TV analyst is a 931A type, by far the most common and cheapest PMT available. NOS ones are all over eBay and hamfests for very cheap prices:
http://www.ebay.com/itm/1-NOS-GL-931...-/371693720845