[Hallicrafters] sr-2000

[rdhalste]

Pulling the 8122s and applying the voltages sounds like a good place to
start.

If the voltages are OK with the tubes pulled (be carerful), and that
parasitic choke is OK..then it could get interesting.

Hallicrafters ended up with a bunch of bad ceramic bypass and coupling caps
(all the same size and value).

There isn't all that much that can go wrong with a circuit using a pair of
tetrodes...But then again...<sigh>

Good luck.

Roger (K8RI EN73)
WWW.RogerHalstead.com
N833R, World's Oldest Debonair? S#CD-2



> Subject: [Hallicrafters] sr-2000
>
>
> > Recently acquired a sr-2000 with matching p-2000 supply. Receive
> > functions very well, HV comes up appropriately after time delay relay
> > works. Both HV settings switch apropriately.  The instant the rig is
> > switched into transmit with no drive, it trips the overload relay in the
> > p-2000. Pulls heavy screen and plate current for a fraction of a second
> > on the meter before the overload kills the HV.
>
> Have you tried getting the HV on with the 8122's pulled?  I used to work
on
> JRC ship transmitters that used four 8122's.  When they worked, they were
> great,
> but the 8122's like to develop shorts very easily.  You might have one or
> both
> 8122's shorted.
> 73,
> Sandy W5TVW
>
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