#16
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eberts is somewhat famous here for being an abrasive buzzkill who doesn't contribute anything positive. I'm rather loathe to admit it, but I agree with him on this one. You've gotten several estimates from people who have 15GP22's and it's looking like somewhere between $1000 and $2000 is the magic number. Apparently that's not the answer you want to hear. So for some reason you've decided to rant and scold your potential customer base (as wishy-washy and unable to comprehend the "clearer picture") instead of accepting the number as given. Maybe not a "fever", but odd behavior nonetheless. Rebuild a tube. Demonstrate it has 100% emission on all guns. Prove it won't leak air for a warranty period equal to a NOS tube (35 years). Show it working with vivid colors. List it on eBay and the AK classifieds and AntiqueRadios and on the ETF site. And demand a rebuildable core 15GP22 trade-in or no deal. See what you get. No need to take a "pole"[sic] for that answer. That's the "open market" at work. If it makes money, do it. If it doesn't make money but you want to be somebody important and famous by preserving history, do it anyway. If you can't afford that, don't do it. That's your simple answer. Like it or not.
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Do not attempt to adjust your set. |
#17
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BTW Eberts, as the caretaker of two functional 15GP22's, I shall certainly be on my guard against other hobbyists looking to snuff me over those bottles
But seriously, no one is pretending this is anything but an opportunity for a very small universe. It will be expensive to pull off. To put it in perspective, since I bought my first CT-100 when I was 23-years-old I have also bought no less than 16 new cars. What's 3000 dollars more if I can get my first 15G glowing again? Pete |
#18
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I'm a little curious about all the hub-bub over "full gamut phosphors" in the 15GP22.
I've had the experience recently of being able to watch a 15GP22 set in action (not an RCA CT-100, rather a Westinghouse), and did not notice anything special about the color (I could not adjust the color myself, however). Rob |
#19
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#20
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Which is dimmer ?
Which is dimmer,the modern or the 15GP22 ? Also, which is more yellow?
THANKS. |
Audiokarma |
#21
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Yoda, I'd like to talk to you about Leak Testing
Yoda,
Please send me a PM with your phone number. I'd like to discuss Vacuum Leak testing and such. Thanks. Greg Francisco Spacecraft Test and Integration Facility NASA , Goddard Spaceflight Center Greenbelt, Maryland |
#22
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Modern phosphors are more efficient/brighter. Modern green is more yellow.
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#23
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And thusly, a 15GP22 looks more like true Technicolor motion picture film. I saw Pete Deksnis' CT100 in person, which he has set up better than any CT100 I have seen. The color on Pete's set will knock your socks off if you are viewing the right program material. If you are reading this post Pete, perhaps you could give us a list of those special DVD's you have that were digitally remastered from the original Technicolor masters, and maybe some links as to where these special DVD's can be purchased. Pete also has an adapter on his CT100 that allows you to run the set as a "monitor" and bypass the tuning section so you can drive the set directly from the video of your DVD player. I think the video adapter is a great mod and when I get my sets up and running, the video adapter mod will be high on my list of things to do. Bob
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Vacuum tubes are used in Wisconsin to help heat your house. New Web Site under developement ME http://AntiqueTvGuy.com |
#24
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__________________
My TV page and YouTube channel Kyocera R-661, Yamaha RX-V2200 National Panasonic SA-5800 Sansui 1000a, 1000, SAX-200, 5050, 9090DB, 881, SR-636, SC-3000, AT-20 Pioneer SX-939, ER-420, SM-B201 Motorola SK77W-2Z tube console McIntosh MC2205, C26 |
#25
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That early phosphor really does have incredible greens and reds. I've had a CTC-5 with 21AXP22 set up right next to a newer roundie, and there's no copmarison. (nameless other AK member) was the first to demonstrate that for me, with a laserdisc of South Pacific on a CT-100.
Charles
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Collecting & restoring TVs in Los Angeles since age 10 |
Audiokarma |
#26
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http://home.att.net/~pldexnis/potpou...demo-DVDs.html ------------------ This page on my site documented one step in the quest for a vintage-hardware-based system that could show us what color television at its best looked like in 1954. Using modern instrumentation, it shows that an over 50-year-old 15GP22 is still capable of reproducing the 1953 NTSC color space. http://home.att.net/~pldexnis/CTC2_h...GP22gamut.html You will note at the bottom of the page there is a link to the full Monty: a demo of 15GP22 color capability at the 2007 Early Television Foundation museum's convention, which I am sure most of you have seen. Note also that I did not do it alone; participants included, in alphabetical order, Chuck Azzalina, Wayne Bretl, John Folsom, Steve Kissinger, Steve McVoy, Ed Reitan, and others... |
#27
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One thing that must be noted is that the same signal (from the same DVD) when put into a modern tube and the 15GP22, will ALWAYS show less-yellow greens on the 15GP22. This in no way indicates what the colors from that DVD SHOULD be. In fact, it is very likely that the color was restored while viewing on a modern (very accurate, but still modern) CRT, and that is what the srudio intended on that DVD.
However, one might surmise that IF the studio used an extended range monitor, it might have at some point produced an extended range master which was then rendered to be as good as possible on a modern display. This could include the choice to either keep the correct hue of a true green or go for higher saturation, but not both. There are similar, but much more severe, color rendering choices to be made in converting computer images to printed output. |
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