Joe, I did not actually look at the numbers until your email. I did reformat and clean them up for long term retention. Right you are and will guess the ion pump e is a direct reading at 2.4..KV The Ion pump I is nice and low Beam is zero or noise or profoundly weak. All of the other voltages look reasonable. Regards Paul WB8TSL
On Thu, Oct 3, 2013 at 9:08 AM, J. L. Trantham <jlt...@att.net> wrote: > Suspicious for a dead tube. > > Joe > > -----Original Message----- > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On > Behalf Of Tom Miller > Sent: Wednesday, October 02, 2013 9:54 PM > To: time-nuts@febo.com > Subject: [time-nuts] Fw: FTS 4060 Cesium Time & Frequency Standard, Datum > > > > Just to get this data on the list. > > Here are the measured voltages on U1: > > Pin Fn Voltage Limits > 9 Beam I 0.001 1.01 to 3.73 > 18 Ion Pump E 2.436 1.72 to 3.01 > 7 Ion Pump I 0.020 0 to 2.0 > 19 Elec Multi E 2.060 0.84 to 3.01 > 17 C-Field I 3.65 3.28 to 4.45 (front > panel > sw set at 500) > 16 Cs Oven T 1.379 1.27 to 1.55 > 20 Xtal Oven Pwr 3.57 2.81 to 3.91 > 3 180 MHz Lvl 2.784 0.1 to 4.8 > 2 12.6 MHz Dig 4.84 4.0 to 5.0 > 23 12.6 MHz Ana 1.34 0.35 to 4.28 > 6 +5 Supply 2.427 2.35 to 2.68 > 4 +18 V Supply 2.484 2.42 to 2.68 > 22 - 18 V Supply 2.481 1.72 to 3.52 > 21 Chassis T 3.045 2.62 to 3.44 > > > It has been on for four days. > > When I compare the 10 MHz out to my GPSDO, the frequency matches up when > the > control (meter 4) passes 3.2 volts. There is no movement in the Beam > current > (meter 3) as control sweeps. > > > > Tom > > > > ----- Original Message ----- > From: Tom Knox > To: Tom Miller ; Time-Nuts > Sent: Wednesday, October 02, 2013 2:00 PM > Subject: RE: [time-nuts] FTS 4060 Cesium Time & Frequency Standard, Datum > > > > If anyone has a service manual I am also very interested. Thanks > Thomas Knox > > > > > From: tmil...@skylinenet.net > > To: time-nuts@febo.com > > Date: Wed, 2 Oct 2013 13:22:45 -0400 > > Subject: Re: [time-nuts] FTS 4060 Cesium Time & Frequency Standard, > Datum > > > > Hello Corby, > > > > Thanks for the help. Yes, could you copy me on the information for the > U1 > > chip? I do not have anything other than the user manual from Brooke. At > this > > time, anything will be a great help. > > > > > > Best regards, > > Tom > > > > > > ----- Original Message ----- > > From: <cdel...@juno.com> > > To: <time-nuts@febo.com> > > Sent: Wednesday, October 02, 2013 11:47 AM > > Subject: [time-nuts] FTS 4060 Cesium Time & Frequency Standard, Datum > > > > > > Tom, > > > > On the 4060 you can easily monitor the Ion pump voltage and current, > the > > electron multiplier voltage, and other important parameters by > measuring > > the voltages on the U1 chip on the uP board. > > This saves you fronm having to diconnect stuff to measure the HV and > > such. > > If you don't have a manual showing the pins of U1 I can post to pinout > > here on Time Nuts. > > > > Corby > > > > _______________________________________________ > > 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. > > _______________________________________________ > 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.