[Milsurplus] Re: Advice: LS-50 German Tube

[Meir WF2U]

After reading the article in question (I just put the link in my previous
email from work, in a hurry), this is the gist of it: the LS-50 fits in the
GU-50 socket, and vice versa as well. The problem is that the original LS-50
cage which holds the tube has a smaller diameter into which the GU-50 won't
fit. The LS-50 fits in the larger diameter GU-50 mounting cage. The article
about the socket was actually manufacturing the socket (from a mixture of
epoxy resin and ceramic powder) without the mounting cage, to accommodate
either tube.
This was part of a larger article about building audio amps (see,
audiophools will end up skyrocketing the cheapo GU-50 tubes, if they become
fashionable...) with GU-50's or LS-50's interchangeably, without modifying
original sockets. As the article says, in an audio amplifier there is no
need for the mounting cage, as it's not in a military, high vibration,
rattling around environment.

BTW the author of the article also has an article there about building a ham
transmitter with LS-50/GU-50's...

73, Meir WF2U
Landrum, SC

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of David Stinson
Sent: Friday, August 03, 2007 10:03 AM
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] Re: Advice: LS-50 German Tube


----- Original Message ----- 
From: "Bob Camp" <ham at cq.nu>

> After looking at the German web sites I think I might just swap in  
> the GU-50 socket. ....

"Each to his own,"  
but I'm unwilling to make that kind of change in a mil radio from WWII.  
Perhaps someone would be willing to trade,
expensive tube-for-expensive-tube?


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