The test I have been conducting for the last 6 weeks uses a 15V 3A Toshiba switcher feeding the 5680A through a filter and a 78M05 for the five volts. For the last 5 weeks I have temperature control and I still se no aging. As I mentioned before I read 1E-12 over 1000 seconds since Tbolt variations exceed 1E-11 at a second. Can not explain why I see no aging. Heat sink is at 37.2 C Once I have established aging I will interface it to a Shera controller. Bert Kehren PS with our cold spell I let the temperature in the lab drop 5 C and the fan duty cycle went from 39% to 7 %! _______________________________________________ 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.
