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 Post subject: Trying to identify type of tube
PostPosted: Jan Sun 28, 2018 4:20 am 
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Joined: Jan Sun 28, 2018 3:54 am
Posts: 1
(Admin please move if this is in the wrong forum)
Hello everyone,
I'm new here and I primarily have an interest in vintage telephones and equipment.
I've been given five tubes that I'm trying to identify, all the same.
They are not for sale.
Wording is as follows;
Made in USA
Sylvania 500W
CBA 120V
1102

Thanks,
Bryan


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 Post subject: Re: Trying to identify type of tube
PostPosted: Jan Sun 28, 2018 4:37 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 12128
Location: S. Dartmouth MA 02748-1225 USA
Looks very much like a projector lamp...

120 volts, 500 watts, do not attempt to light it unless it has forced air cooling...

However, it also appears the filament is not intact.

The type is CBA:

https://www.amazon.com/Eiko-00690-Proje ... B0010W8R34

Welcome to ARF!

Telephone is spoken here.

Have a few old 'phones on line too.


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 Post subject: Re: Trying to identify type of tube
PostPosted: Jan Sun 28, 2018 6:59 am 
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Joined: Jan Fri 17, 2014 7:26 am
Posts: 1366
Location: In the village, 19115
There isn't a whole lot of demand for them: https://www.ebay.com/sch/Cameras-Photo/ ... mp&_sop=15

Mostly used in 8 mm movie projectors and the like.

_________________
I like things that light up, tubes, bulbs, LEDs, whatever, and things that make noise.


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