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Old 02-24-2009, 08:04 AM
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jhalphen jhalphen is offline
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Join Date: Feb 2007
Location: Paris, France
Posts: 592
Hi to All,

For John Marinello:
Q: Looks like there's a metal tube in the background, are they having good luck rebuilding those?

A: Will ask today

Q: Also, can they aluminize tubes, and would a super-bright picture be somehow undesireable on a prewar set?

A: Yes they can, in fact it's part of the normal routine. However, for TVs which have an EHT of less than 8kV, the screen is not aluminized. Reason? under 8kV, electrons don't have enough acceleration to get through the aluminum barrier, hence no picture or very dim picture. The 8kV limit was determined by experimentation + experience (RACS has been in operation for 35 years +)

Q: If they can aluminize tubes, how about metal CRTs? I heard that it was a difficult process due to the tight corner formed at the faceplate/cone bond. The specs on the 19AP4C states aluminized, but I've never seen one.

A: Will ask today, i'm fairly confident they can, over time they've dealt with a considerably variety of tubes, B&W and Color, consumer & military.

For Vintagecollect:

Q: I may have a CRT to send to you to france, it's gone to air , Do they rebuild CRT projector tubes jhalphen? I need a single red phosphor CRT projector tube rebuilt that has gone to air with an open filament??

A: will ask today. Tube ident, manufacturer & basic data would help.

please reply - Will do! as soon as i get answers.

2 things you all should know:
- I don't work RACS, nor have any business ties. Like all people on this forum i'm into vintage TVs, and when i learned that we still had a CRT rebuilding facility in France, it seemed an interesting challenge to nurture contacts between this Co. and the worldwide community. In other words, i help with all the language, translation & cultural aspects.

- RACS rebuilds tricolor CRTs, but like all companies in this trade, they cannot re-screen a tricolor tube. in other words, guns YES, screens NO.

Best Regards

jhalphen
Paris/France
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