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 Post subject: Odd and very old CRT on eBay
PostPosted: Feb Wed 07, 2018 6:43 am 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Redlands CA
Any ideas on what this is? Scope, TV?
The lead in wires are stranded, I'm assuming they are connected to a solid wire before they pass through the glass, kind of hard to keep vacuum with stranded wire.

https://www.ebay.com/itm/Prewar-Picture ... SwFmxaeL-O


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 Post subject: Re: Odd and very old CRT on eBay
PostPosted: Feb Wed 07, 2018 8:04 am 
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Location: Albuquerque, NM 87123
That base appears to have been added later, possibly to use the CRT for testing. May be a fairly common CRT.


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 Post subject: Re: Odd and very old CRT on eBay
PostPosted: Feb Wed 07, 2018 9:05 am 
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I dunno, didn't most common CRTs have their exhaust tips in the center of the pin circle? I can't recall ever seeing one with it on an edge like that...

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 Post subject: Re: Odd and very old CRT on eBay
PostPosted: Feb Wed 07, 2018 12:15 pm 
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I'm thinking that's not the original base as well. Possibly something done by an experimenter or in a school.

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 Post subject: Re: Odd and very old CRT on eBay
PostPosted: Feb Wed 07, 2018 1:17 pm 
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Location: Carmel, Indiana
See the hole located at the far left. I'm guessing that this garolite base was originally designed or used as a RF coil form and that hole was one of the holes that was used to hold that coil form in place. The end looks like it was made out of a piece of inexpensive pine wood. I think this was this was the work of either an instructional school tech or an amateur electronics tech and this is simply a reusable test bench CRT jig.

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 Post subject: Re: Odd and very old CRT on eBay
PostPosted: Feb Sat 10, 2018 11:46 pm 
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Location: Chicago, IL USA
Sold for $202.50. I agree about the odd base but the face looks different than a typical CRT


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