[R-390] R-390A tube adapter

[Dennis Wade]

I have found commercial versions of these devices (i.e. 7 and 9 pin
test sockets) useful when looking at tube pin voltages and signals.

           Dennis



On Tue, Feb 22, 2011 at 10:14 AM, Tisha Hayes <tisha.hayes at gmail.com> wrote:
> The tube adapter is really an extender so you can access the pin connections
> on a tube base to measure voltages or resistances.
>
> Many folks who have serviced these radios professionally (military) have
> indicated that they never used them.
>
> They are homebrew devices with a pin base and a socket, attached with fairly
> inflexible wire so you can raise the height of the tube up to a point where
> you can get to the individual pins (little loops or taps to connect at the
> top tube socket.
>
> There are a few drawings that give examples of what these look like.
>
> --
> Ms. Tisha Hayes/ AA4HA
> ----------------
> "I'll be a diode, cathode, electrode
> Overload, generator, oscillator
> Make a circuit with me." -- The Polecats
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-- 
"Life isn't about avoiding the storms.  Life is about learning how to
dance in the rain."
      - Unknown

-------------------------
Dennis L. Wade
KG6ZI
Carmichael, CA