Info Exchange4-12-00 I am the proud owner of a Westinghouse H-840CK15 (s/n 275), that "disaster deviant that weighs half a ton" as Gary described it in his post of 10/31/99. According to "Tube - The Invention of Television" at the bottom of page 327, RCA's CT-100 was preceded early in '54 by Westinghouse, who beat RCA to the punch and got their set into stores first.
My Westinghouse is in beautiful physical condition , but unfortunately the pre-production developmental C-73599 tricolor crt has gone gassy. If I could find a working 15GP22, I'd fully restore this set to operation. It made all the right noises and the HV came up when I soft-started it, but the crt neck was glowing a beautiful pink around the gun assembly and I knew I was in trouble. I have an original Westinghouse factory training manual, which is also a complete service manual on this set. For Gary's info, the HV tripler uses three, 3A3 tubes.
I am also eager to find a CT-100 for our collection. The museum also has a blonde CTC-5, 21 inch set in working condition with the 21AXP22 metal crt, and a Heathkit GR-53A color set from 1964.
Any Eidophor light valve projector collectors out there? I used to own the first simultaneous color Eidophor, the EP6 set which came from Expo'67 in Montreal, Canada, and after restoring it, I operated it at the 1993 Gemini Awards show in Toronto. We currently have a 5181 hi-brightness monochrome machine that can do a 40x80 foot drive-in theatre screen just as good as 35mm film and I've got the sequential 'CBS color' filter wheel hardware for it but now I'm getting way off topic.
Thanks for posting the page describing your wonderful experience with the CT-100 and this exchange for 15GP22 color owners to share their experiences and tips. I welcome direct communications on this topic through our website where a virtual version of our Hangar31 Vintage TV Museum is now under construction.
4-14-00 Glad you got my info OK, and thanx for the quick reply. I have a couple of questions. What do you mean by 'legacy' and 'probable legacy' in referring to the tube charts on your site? Why the secrecy of not providing last names or contact info to the collectors? Note that I don't mind my www.area31.org URL being published.
Interesting question, Rob. I pondered for some time whether or not to use "legacy" to indicate those tubes in my CT-100 I suspected were installed by RCA at Bloomington in 1954. My decision to accept the term was based on its shared meaning with inheritance: "something immaterial... that is passed from one generation to another" or more specifically "an inheritance of knowledge from the past" as suggested by my favorite reference, "The American Heritage Dictionary."
Also, I felt the basic default should be to honor the privacy of those who responded to my site. And my decision was to maintain a narrow editorial direction centered around the original tricolor picture tubes, which include the 15GP22, 15HP22, and the experimental tube you have. --Pete
4-16-00 Did you know of a 15-inch developmental tube from CBS/Hytron called the CBS Colortron HD-187? It appears next to the C-73599 RCA tube in my Jan'54 Howard Sams book. Looks like the same actual two-part bottle as the 15GP22, troublesome metal seal and all, with a different screen on/in the faceplate.
6-14-00 Way to go Bruce! Anybody got a dud refillable bottle they'd like to trade for some SETI radiotelescope telescope time? I've got a Westinghouse to restore!
10-20-00 I have some nice new brand barium titanate disks that are rated at 0.002 uF @ 10 kVdc. They are the diameter of a quarter and 1/4 inch thick. I have these for sale at $5 US each if anyone needs them. I have 40 pcs I could spare this way. [email@example.com]