I fired up my old 5061A about 3-4 times a year to keep the tube pumped down. I usually run it for 1 to 2 hours to keep it pumped down. This time was different, My GPSs have been off the air from getting a new roof and not being in any rush to get the antennas back up, etc. So ... I wanted to calibrate a couple devices for a friend and fired up the 5061A, got it locked "Green Light" and gave him a call. Up until now, beam current for me has been about 8-10 when peaked. The number recorded on the door is 19. He got delayed, and showed up about 8 hours later. We went to the lab, and the green light was still on, BUT the beam current was around 30. Everything else was where it was normally which is pretty much was was recorded on the door long ago. Any ideas of what I should look for first, before starting from the power supplies and checking everything ? -pete

I know this sounds "insane", but could the unit have been on the wrong Cs peak for some time now? -Brian, WA1ZMS iPhone > On Aug 22, 2016, at 3:02 PM, Pete Lancashire <pete@petelancashire.com> wrote: > > I fired up my old 5061A about 3-4 times a year to keep the tube pumped > down. I usually run it for 1 to 2 hours to keep it pumped down. > > > This time was different, > > > My GPSs have been off the air from getting a new roof and not being in any > rush to get the antennas back up, etc. > > > So ... I wanted to calibrate a couple devices for a friend and fired up the > 5061A, got it locked "Green Light" and gave him a call. > > > Up until now, beam current for me has been about 8-10 when peaked. The > number recorded on the door is 19. > > > He got delayed, and showed up about 8 hours later. We went to the lab, and > the green light was still on, BUT the beam current was around 30. > Everything else was where it was normally which is pretty much was was > recorded on the door long ago. > > > Any ideas of what I should look for first, before starting from the power > supplies and checking everything ? > > > -pete > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

-------- In message <CAA-F0u8Vp6NqmsEbNL+RPORXhr_ndn-OriMxUGc6xR1PccF4vg@mail.gmail.com> , Pete Lancashire writes: >Up until now, beam current for me has been about 8-10 when peaked. The >number recorded on the door is 19. You may simply be running out of Cs. >Any ideas of what I should look for first, before starting from the power >supplies and checking everything ? Try switching it to "low temp" mode if you are not already there. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.