I can hope I will embed a k thermocouple also.
On Wed, Jul 24, 2013 at 7:45 PM, Bob Camp <li...@rtty.us> wrote: > Hi > > The regulator should be fixed, and the OCXO will work better with it > repaired. That said, shifting the regulated voltage from 5.7 to 5.27 volts > should not shift that oscillator 45 Hz. > > Bob > > On Jul 24, 2013, at 9:00 AM, paul swed <paulsw...@gmail.com> wrote: > > > Hello to the group. Numbers of threads running on the HP 10811. Mine is > 45 > > Hz low. The oven is most likely ok. I did get the can open per the > various > > other threads and the web pix. Started testing the circuits and have > found > > that the regulator for the oscillator isn't. Its supposed to produce 5.7V > > and is at 5.27V thats pretty significant. The transistor looks like a > > shorted collector base junction. Though I do not have it out of circuit > > yet. Its Q4 a 2n6429. What interesting about this transistor is its beta > at > > 1 ma is 500 min and max is 1300. Its not a darlington. Thats pretty > > amazing. I am looking through my xsistors to find something close. May > just > > through a 2n3904 in for a quick test. Its beta is nothing like the 6429. > > But it would help to prove/disprove the point that the low V may be > > offsetting the oscillator I hope. > > Will also embed a K thermal couple to verify the oven really is in the > > 80-84C region. > > Regards > > Paul. > > WB8TSL > > _______________________________________________ > > 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. > > _______________________________________________ > 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. > _______________________________________________ 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.