[time-nuts] Fw: FTS 4060 Cesium Time & Frequency Standard, Datum

[paul swed]

Tom
I have uploaded rom images to Diddiers and others sites for safe keeping.
Thankfully others do also. Thats exactly how I was able to recover my
HP5100d digital scope. It had alzheimers and though I looked high and low
for an image for 3 years, it was only after I purchased a tek DSO that the
images showed up on Diddiers site. But the fact is they finally did. I
compared the two scopes and the HP remains on the bench. All 60 LBs. The
tek must be 13 LBs its a good scope.
Looks like you have some numbers to start working with. Let us know what
you see.
Regards
Paul.


On Wed, Oct 2, 2013 at 10:53 PM, Tom Miller <tmiller at skylinenet.net> wrote:

>
>
> 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: tmiller at skylinenet.net
>   > To: time-nuts at 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: <cdelect at juno.com>
>   > To: <time-nuts at 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
>   >
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