[time-nuts] 5061B with 'Dead' tube - Options?

[paul swed]

Joe that would be me and the Frankenstein of 5061s. I completely home
brewed a oven controller using a separate DC supply and feeding that to a
controller that I made. It allowed me to raise the temp and boil a very few
C's enough though to get the darned thing to run just barely. Funny thing
is I shut it down for 6 months. Recently fired it all up and after pump
down about 2 days the thing automatically came back up with 2nd harmonic
and all!
I was quite shocked actually. This was a 5060 tube in a 5061 that had
originally had a low noise tube that was really dead. The 5060 tube was
given to me for shipping and it was considered rightly so dead by a fellow
Time-nut.
You actually responded to me on some of the schematics for the oven.
So heck yes go for it. I have some notes on what I did as far as temps
went. But its whatever the tube said plus about 10 degrees as I recall.
then tweak and peak per instructions.
I figure at the age these units are nothing much matters and if you can get
anything you won. It gave me a heck of an education.
Regards
Paul
WB8TSL

On Fri, Apr 6, 2012 at 6:53 PM, J. L. Trantham <jltran at att.net> wrote:

> I have a 5061B that appears to have a 'dead' tube.  It uses the 05061-6044
> DC oven controller and all appears to be functioning correctly other than
> the CS Oven indication on the meter being slightly lower than what I am
> used
> to seeing..
>
>
>
> I recall prior discussions about raising the CS Oven Heater voltage to see
> if the tube can be 'resurrected'.
>
>
>
> Since the tube is apparently, otherwise, unusable, there appears to nothing
> to lose.  I have been considering building a small DB9M to DB9F cable to
> allow measuring all the voltages to the heater, etc.  Any suggestions to
> see
> if I can bring it 'back to life'?
>
>
>
> Thanks in advance.
>
>
>
> Joe
>
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