Anyone Ever use a Tube Socket Adapter Kit?

[Platefire]

I've got a MX-1258/U Adapter Kit that came with a TV-7A/U Military Tube Tester I got. Best I can tell the main function was to put the adapter in the tube socket and then put the tube in the adapter. The adapters have numbered tabs with a small hole in them along the top of the adapter that are connected to the tube pins/sockets. These tab holes are for the purpose of attaching test leads for MM measurements. I guess it would be handy to get voltages and check bias without pulling the chassis.

I have never used these for the purposes intended. Just wonder if anyone has used a kit like this?
The main thing I have used is it has a 9 and 7 pin--pin straightener bases that I've used several times, but that's about it. Platefire  

[jim]

That is a "socket saver" type device used to keep the original sockets from wearing out from repeated insertions. Problem is a real "socket saver" will not have test points. The voltages in the TV-7 are not that high but you could get bitten pretty good accidently touching the metal test points inserting a tube.  Jim

[sluckey]

It's not a socket saver. And it's not meant to be used with a tube tester. It's a test socket kit. You pull a tube in the equipment then insert the appropriate socket and reinsert the tube. Now you can make voltage/resistance checks via the test points on the adapter without having to get to the inside or backside of a chassis.

They're not very useful when working on portable equipment such as a guitar amp, but can be handy working on big equipment when you can't easily get to the wiring side of a tube socket.

Here's the manual...

      http://home.comcast.net/~seluckey/us_military_mx-1258u_tube_socket_adapter_kit.pdf

[Platefire]

Wow! Thanks, vintage 1952 manual. Platefire

[stratele52]

Platefire you got a great kit , keep it . I wish to find some like that.

I use those socket adapter 30 -40 years ago on the job where I work a that time . I don't have them myself

[Platefire]

Yow, I plan to keep it. My TV-7A/U tube tester quit working. I going to have to do some research and I have all the manuals for it and see if I can get it going again. There use to be a guy on the internet that was an expert on these old machines and he was helpful in answering your questions. You could also send it to him to be refurbished. Platefire

[punkykatt]

Plate, did you ever get your tube tester working?  I was given a TV-7B/U tester (not working of course).  Are these tube testers worth fixing?
Punky

[eleventeen]

Yes, I have those and have used those...they were generally made by Vector or Pomona Electronics and come up on ebay frequently, and they get sold, for money, about $15. each. Not exactly cheap.  Search for "vector socket" or "vector test" ----which can also mean those special sockets that have the posts underneath with the connection terminals. They are useful, if you don't grab them w/power on and zorch yourself! But they are not what I would call "indispensible". They are no good for interrupting the cathode like on a bias-tester deal. Most of the time....once you have a lot of tube experience...you can deduce whatever fault you're trying to narrow down, and to be sure, you're gonna have to yank the chassis anyway if you have something wrong. But they can save some diagnostic time here and there.





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[stratele52]

eleventeen ,


Thats the one we had at my job long time ago