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Bill1956
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Post subject: dud 10BP4s  Posted: Dec Thu 29, 2011 11:56 pm |
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Joined: Jun Wed 01, 2011 9:20 pm
Posts: 8
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Other than the transfer station, is there anything else that can be done with "open" CRTs such
as 10BP4s, 3KP4s, 7JP4s? I'm in Connecticut and won't toss them if there are any ideas/interest.
thanks and happy 2012
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philsoldradios
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Post subject: Re: dud 10BP4s Posted: Dec Fri 30, 2011 12:17 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3698
Location: Woodinville, WA USA
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Nobody in the USA currently rebuilds vintage picture tubes, but the Early Television Foundation has a project underway that may eventually provide such a service. If you're the optimistic type, or you just hate throwing things away, you (or someone else) could save them in case that again becomes practical. I know the 10BP4 is rebuildable. Not sure about 3KP4 or 7JP4.
Phil Nelson
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Bill1956
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Post subject: Re: dud 10BP4s Posted: Dec Fri 30, 2011 12:27 am |
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Joined: Jun Wed 01, 2011 9:20 pm
Posts: 8
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thanks, Phil. Taking up space isn't really an issue at this point, so they will stay put.
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edison64
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Post subject: Re: dud 10BP4s Posted: Dec Fri 30, 2011 2:08 am |
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Joined: Mar Wed 04, 2009 4:24 am
Posts: 263
Location: La Porte Walkerton NW Indiana
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By "open"do you mean bad filaments? Or lost vacuum? I have seen very few bad filaments ... in most all cases a quick resolder of pins cured the "open" also the 7jp4 & 3kp4 are made of Pyrex glass. I believe only RACS in France is rebuilding Pyrex prewar tubes.. just my. 02
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akent36
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Post subject: Re: dud 10BP4s Posted: Dec Sat 31, 2011 2:58 pm |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 763
Location: Rockford IL USA
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3KP4 and 7JP4 are standard glass. Tubes such as 12AP4 are Pyrex.
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panther
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Post subject: Re: dud 10BP4s Posted: Dec Sat 31, 2011 9:45 pm |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 7413
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In the words of our good member, the late Curt Reed....
Click, Bang!!!
Dan
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MOLE
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Post subject: Re: dud 10BP4s Posted: Jan Tue 03, 2012 2:03 am |
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Joined: Jan Thu 22, 2009 8:12 pm
Posts: 277
Location: Oakland, CA
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This may be a dumb question, but where would I search for a good 10bp4? Ebay and classifiers and craigslist like everyone else?
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TJM70
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Post subject: Re: dud 10BP4s Posted: Jan Fri 06, 2012 12:34 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1835
Location: Laughlintown, PA
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Aside from posting here or the the ETF web site & buying one from a member, I have had good results in buying other tv sets just for the CRT via Craigslist, etc.
Harry Poster in NJ used to sell good used tubes.
_________________
Tom
"The 21st Century is a nice place to visit - but I sure wouldn't want to live there."
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Don Cavey
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Post subject: Re: dud 10BP4s Posted: Jan Fri 06, 2012 1:18 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 9811
Location: Baltimore, MD, USA
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TJM70 wrote: ... I have had good results in buying other tv sets just for the CRT via Craigslist, etc.
... For sure! One hates to part out a set. But tubes etc. are often a reward.
_________________
Don
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Electronic Memory
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Post subject: Re: dud 10BP4s Posted: Jan Fri 06, 2012 2:09 am |
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Joined: Nov Thu 11, 2010 6:03 pm
Posts: 397
Location: Pewaukee, WI
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Quote: Harry Poster in NJ used to sell good used tubes.
He is again, and the 10BP4 is among them.
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