Cheap is relative. Curious what it means? Paul WB8TSL
On Fri, Sep 27, 2013 at 12:20 PM, mc235960 <[email protected]> wrote: > Hi, > Some Qs for someone with 5071A experience. > > I have picked up a cheapo second hand 5071A and would like to know what > tube I have and what remaining life I might expect. > It locked in about 10-15 mins after I applied power for the first time > this morning. > > the box s/n is 3249A00498 and the tube s/n 3124A00248 has an (S) suffix . > There is an opt 001 (high performance CBT) label on the box. > > *idn? returns HEWLETT-PACKARD,5071A,0,X.3249 The Symmetricom manual of > 2006 give a "SYMMETRICOM" string returned. So it must be quite old I > guess. > > X.3429 appears to correspond to the firmware version as seen on the LCD . > > Given that, does anyone know how to find out > > a) date of manufacture > b) type of CBT > > I could not find any command sequence to indicate usage, so is there a > way to find out > > c) The cumulated CBT power on time? > > d) If that is not available, is there anything in Status summary that > could give a clue to aging? > > scpi> syst:print? > > MJD 56562 15:20:21 > CBT ID: 3124A00248(S) > Status summary: Operating normally > Power source: AC > Log status: 15 entries > > Freq Offset: 0e-15 Osc. control: -5.57 % > RF amplitude 1: 35.5 % RF amplitude 2: 33.4 % > Zeeman Freq: 39949 Hz C-field curr: 12.157 mA > E-multiplier: 1357 V Signal Gain: 14.4 % > > CBT Oven: 6.1 V CBT Oven Err: 0.02 C > Osc. Oven: -9.0 V Ion Pump: 0.2 uA > HW Ionizer: 1.1 V Mass spec: 11.0 V > SAW Tuning: 1.9 V DRO Tuning: 5.7 V > 87MHz PLL: 1.1 V uP Clock PLL: 2.7 V > +12V supply: 12.4 V -12V supply: -12.3 V > +5V supply: 5.5 V Thermometer: 42.3 C > > Regards, > Mike > > > > > > > > > _______________________________________________ > 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.
