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 Post subject: Precision socket adapter help needed
PostPosted: Aug Sat 14, 2004 5:49 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3156
Location: Little Fort (a.k.a.) Waukegan, IL
Hi, I need the pinout for the Precison octal to 9 pin miniature socket adaptor. Precision part G-109. Hopefully most of you Precision 900 series owners should have one, perhaps maybe one you don't need.<P>------------------<BR>Tony


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 Post subject: Precision socket adapter help needed
PostPosted: Aug Sun 15, 2004 1:07 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 7865
Location: Minnesota
Most adapters are wired 1 to 1, 2 to 2, etc. It would be easy to make one with an old octal base and a 9 pin socket.<P>Dave<P>------------------<BR>Intelligence is the ability to use your knowledge


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 Post subject: Precision socket adapter help needed
PostPosted: Aug Sun 15, 2004 1:48 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3156
Location: Little Fort (a.k.a.) Waukegan, IL
Thanks Dave, I have the original adapter but I pullled it apart a while back for whatever reason and forgot what went where.<P>------------------<BR>Tony


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 Post subject: Precision socket adapter help needed
PostPosted: Aug Sun 15, 2004 4:38 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 16280
Location: Utica, NY 13502 (USA)
In making the adapter, would one assume that pin 9 of the minature tube socket is connected to the "grid cap" connection of the tube tester (since the octal plug has only 8 pins)?<P>Dave<P>------------------<BR>


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 Post subject: Precision socket adapter help needed
PostPosted: Aug Mon 16, 2004 7:58 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 3156
Location: Little Fort (a.k.a.) Waukegan, IL
Well, I opened up my 912 modified with a 9 pin mini socket on the panel. Traced the wiring, checked it against the schematic and loctal socket where all sockets are interwired, transposed it to the octal socket, and quess what? It is wired one for one with the octal socket with the 9th pin going to grid cap connector. <P>Now this 9 pin socket has a center contact in the socket, any idead what that was used for? I don't think it was connected in anyway, but just curious as to what used for.<P>------------------<BR>Tony


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 Post subject: Precision socket adapter help needed
PostPosted: Aug Mon 16, 2004 8:47 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 23034
Location: Maryland 20709, USA
Hi Tony,<P>There was a multi-section tube with a 9-pin miniature base and an additional pin in the center. I can't remember the number. It was discussed here recently.<P>------------------<BR>73 de Leigh W3NLB | | Leigh@AtwaterKent.Info<BR><A HREF="http://www.AtwaterKent.info" TARGET=_blank>http://www.AtwaterKent.info</A> | | <A HREF="http://www.Synchrophase.info" TARGET=_blank>http://www.Synchrophase.info</A>


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 Post subject: Precision socket adapter help needed
PostPosted: Aug Mon 16, 2004 9:13 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 31563
Location: Livermore, CA
Hi Tony<P> 6C9 is one number with a center pin. There are a couple others but none were used very often.<P>------------------<BR>Norm


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