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#1
02-12-2012, 08:27 PM
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Picked up an nos crt, but what is it?
So i went to an estate sale today and found a 5" round crt, a 5fp7a. The box says its a tv crt. Ive done a bit of looking online and cant seem to find what tv's used these. Im guessing late 40s from it being such a small roundy.
But for 12.50 i couldnt turn this down.
__________________
"Good morning whiskey, good morning night. The end of the world is in my sight." Hank 3 
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#2
02-12-2012, 08:59 PM
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A P7 Phosphor would be Orange and long persistence, I would think it's for a Radar or a Scope application.
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#3
02-12-2012, 09:22 PM
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Quote:
__________________
"Good morning whiskey, good morning night. The end of the world is in my sight." Hank 3
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#4
02-12-2012, 09:57 PM
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P12 is the orange radar phosphor. P7 is a dual phosphor. Short persistence blue and long persistence yellow as used for radar displays. I hooked up a different model P7 CRT to a vintage TV once. It's a freaky display to watch for sure, but could be used for testing.
You could probably sub it in for a 10BP4, but the base is different so you'd need an adapter. Here's some data for it: http://www.scottbecker.net/tube/sheets/141/5/5FP7B.pdf
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#5
03-19-2012, 05:00 PM
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you'd have a orange and white tv set
go ahead and build it....find a schematic from 40's that's workable and just build it..  Jody
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#6
03-19-2012, 10:50 PM
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The 5FP7 is now in my hands and I'll try popping it in a working chassis ASAP.
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#7
03-21-2012, 06:19 PM
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Quote:
__________________
"Good morning whiskey, good morning night. The end of the world is in my sight." Hank 3
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#8
03-21-2012, 07:53 PM
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I sure will. I just tested it on my Sencore CR70 and found a G1 short. A few blasts from the clear shorts function took care of that. It has an octal base so I'll need to make an adapter before I can try it out.
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#9
03-22-2012, 09:19 AM
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Quote:
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Linear Mode
