[Milsurplus] VT-191 Socket

[seanbart at fidnet.com]

The scans of old radio magazines available on the Radio History website is very nice to peruse when looking for applications of some of these "unusual" tubes.  Here is a page that mentions how to make connections to a 316A.
 
[ http://www.americanradiohistory.com/hd2/Archive-Radio-IDX/IDX/30s/Radio-1936-07-OCR-Page-0054.pdf ]( http://www.americanradiohistory.com/hd2/Archive-Radio-IDX/IDX/30s/Radio-1936-07-OCR-Page-0054.pdf )
 
Sean - KB0OVD
 
-----Original Message-----
From: "Richard" <brunneraa1p at comcast.net>
Sent: Wednesday, March 8, 2017 8:06pm
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] VT-191 Socket



Probably not, and would be undesirable because any insulation at high impedance points (grid and plate) will introduce losses at UHF.  At UHF "no socket" is better.  The BC-645 is the only application I have ever seen for the 316-A
Richard, AA1P

On 03/08/2017 08:48 PM, Michael Bittner wrote:
Was a stand-alone socket ever made for the VT-191 (316A) UHF Triode?
 
As used in the BC-645 IFF Transponder, there is a socket for the filament pins only, while the grid and plate pins plug directly into receptacles on the quarter-wave tuned-lines of its ultra audion resonant circuit.
 
A stand-alone socket would probably be T-shaped with the filament pins in the vertical part of the Tee and the grid and plate pins at the ends of the horizontal part of the Tee.  [ http://www.radiomuseum.org/tubes/tube_vt191.html ]( http://www.radiomuseum.org/tubes/tube_vt191.html )
 
Mike, W6MAB
 



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