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  #1  
Old 06-28-2011, 06:27 PM
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BruceL BruceL is offline
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Wanted 3KP4

Laugh and tell me it's impossible, but if you have one PM me and let me know.
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  #2  
Old 06-28-2011, 07:14 PM
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There are lots of 3KP4's, just none that work.
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Old 06-28-2011, 09:37 PM
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Quote:
Originally Posted by miniman82 View Post
There are lots of 3KP4's, just none that work.
Yep I know I got one of those:It's too bad there no longer any CRT re builders.
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Old 06-29-2011, 11:20 AM
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For a small fortune, you could send it to RACS in France?
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  #5  
Old 06-29-2011, 12:28 PM
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I don't think these were ever rebuilt were they?
Probably made of Pyrex glass and difficult to work with?
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  #6  
Old 06-29-2011, 12:42 PM
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My TV-37 has the "Green" CRT, which gets all manner of comments from visitors...I've never really wanted a "Blue" one. But like Eric says, I doubt if they were ever rebuilt, as these were about the FIRST "Disposable" TV, & when the CRT died, they either replaced it w/a green one or just chucked the set-Who wanted to squint at such a tiny picture anyway ? By the mid-Fifties, when these things likely started "dying" the 8" RCAs & Emersons would have been available, they were much better TVs anyhow.
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Old 06-29-2011, 01:19 PM
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I use the green 3KP1 in mine as well, to preserve my 3KP4... people like it!



jr
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  #8  
Old 06-29-2011, 11:08 PM
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I remember (and probably still have) an article from the 80s, from one of the antique radio newsletters. The author restored a 3" Pilot and was able to have the crt rebuilt at that time. I believe it was an older gentleman in NJ who had been associated with DuMont. (not just with DuMont TV-he worked with Dr. DuMont in the early days) I'll have to dig that out someday.
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Old 06-30-2011, 02:51 AM
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I got my TV-37 minus its CRT in trade about 1981, and I was able to order a 3KP4 from Richardson Electronics (in Illinois) at that time. They may have had it manufactured new at that time, or maybe rebuilt; it does have a 1981 date on it.
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Old 06-30-2011, 02:56 PM
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B-Scan in PA (I think) was rebuilding tubes in the mid-late 1980s. I think they got bought out by Video Display.
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  #11  
Old 08-11-2012, 01:15 AM
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3KP4 rebuilds

I cant speak for the company, but came across this when doing a search for a 3KP4


http://www.wmicronics.com/rebuilttubes.htm
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  #12  
Old 08-11-2012, 05:17 AM
snelson903 snelson903 is offline
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could you use a 3ap1 i have a good working one i saved from a rca scope, it worked good. i was saving it just in case my genescope might need it , plus i never junk any working part.
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Old 08-11-2012, 05:23 AM
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How much does RACS in France charge to rebuild a picture tube? like a color roundie tube? I've googled "RACS" and don't seem to get anything other than whats mentioned here..
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  #14  
Old 08-11-2012, 09:01 AM
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For what they would charge, it's not worth it to rebuild color roundies. You can still find them on the open market here in the states, Mark got one at ETF a couple years ago.
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Old 08-12-2012, 03:53 AM
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ChrisW6ATV ChrisW6ATV is offline
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Quote:
Originally Posted by baursam View Post
I cant speak for the company, but came across this when doing a search for a 3KP4


http://www.*****.com/rebuilttubes.htm
That site has been "found" and investigated several times by forum members. No one has ever got any good response or results from their searches.
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