Paul, Thanks for the reply. I was wondering how that turned out. I am wondering if I can modify the existing DC Controller to supply a higher voltage/current to get the higher temperature. It would be nice to have it all 'self contained'.
How did you monitor the temp and what voltage/current did you supply to the heater? Joe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of paul swed Sent: Friday, April 06, 2012 7:18 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] 5061B with 'Dead' tube - Options? 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 <[email protected]> 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 > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
