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  #1  
Old 06-20-2014, 09:33 PM
chipper chipper is offline
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Wanted test adapter for 15GP22 crt

Looking for a test adapter socket for this tube, I know Beltron did provide one back in the day for there testing equipment
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  #2  
Old 06-21-2014, 08:53 AM
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miniman82 miniman82 is offline
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Unless you are able to cannibalize a CT-100 chassis, your choices are slim and none. Use the universal adapter if you have one, or make one from test clips.
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Old 06-21-2014, 11:08 AM
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Jedec B20-102

The socket you need for attaching to the 15GP22 base is commonly called a 20 pin bidecal. It is jedec specification B20-102.

After an extensive search it appears that you may be able to buy a socket from a company called Lanco International. This same socket was used on an RCA photo multiplier tube and Lanco supplies sockets for all sorts of photomultiplir tubes. This link will take you to the Lanco web page which lists the socket you need. http://lancosockets.com/Lanco_PMT_sockets_products.htm The contact information for Lanco is at the bottom of the web page.

Their part number is FE-1120. It is a chassis mount socket but it will work for making an adapter for the 15G. Then you wire the 20 pin socket to a 14 pin duodecal base. You can get a 14 pin base from a dead 21" roundie color tube or you can use the 14 pin base from an old style color picture tube brightner.

When I made my 15G adapter, I was fortunate to find a fellow on the web that was selling used photomultiplier tubes and he had a couple of used sockets that I purchased. He is no longer in business. As Nick said in his post, these 20 pin sockets are next to impossible to find.

Hope this helps.
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  #4  
Old 06-21-2014, 01:17 PM
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Jon A. Jon A. is offline
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I think I've just realized why no one subs later CRTs for the CT100. 20 pins? Holy crap, never heard tell.
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Old 06-22-2014, 03:42 PM
chipper chipper is offline
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Hey Bob thanks for the info
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Old 06-30-2014, 04:21 PM
WISCOJIM WISCOJIM is offline
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Quote:
Originally Posted by ohohyodafarted View Post
This link will take you to the Lanco web page which lists the socket you need. http://lancosockets.com/Lanco_PMT_sockets_products.htm
I checked with Lee @ lanco. The cost for these is $45 each, minimum order of five pieces.

Much cheaper to find the appropriate size terminals and drill your own phenolic board to hold them. This is what I'd probably do if I needed one.

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  #7  
Old 07-01-2014, 02:12 PM
wiseguy wiseguy is offline
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15GP22 socket

I had a bunch of those a few years ago but donated them to others who had ct-100's and gave the last 3-4 to ETF
check with Steve At the ETF and see if he has any left

Last edited by wiseguy; 07-10-2014 at 06:20 AM.
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Old 07-09-2014, 04:56 PM
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miniman82 miniman82 is offline
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^ bad gouge, I bought that thing and it had a 14 pin socket like a 7JP4. Nowhere close to what the 15G uses, which is a 20 pin socket. Thanks.
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Old 07-10-2014, 06:33 AM
wiseguy wiseguy is offline
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here are pics that I sent of them to pete and steve from ETF, there were 10 of them back then

Last edited by wiseguy; 07-19-2016 at 02:00 PM.
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  #10  
Old 07-10-2014, 10:31 AM
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miniman82 miniman82 is offline
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Those are the correct ones, they are not the same as for the photomultiplier tube which has 14 pins.
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