Paul,
You are right, NASA's Deep Space Network (DSN) used a pair of Sulzers in
their Frequency and Timing subsystem. At some time before 1972 they
were replaced by a HP 5061A, a HP 5065A, and a HP Xtal oscillator,
probably a HP 105B, the Sulzers remained in the rack several years but
unpowered.
A curious thing that I remember is that the Cesium was used for the
clock and all the timing, but the Rubidium was used for frequency
reference for a lot of equipment, mainly for multiplying up to
microwaves for the transmitters and receivers. When I asked why, I was
told that they were more phase clean for this application.
Later an Hydrogen Maser replaced the Cesium as the primary reference and
the crystal references were removed.
The MSFN used in the Apollo program used a different Frequency and
Timing Subsystem.
Regards,
Ignacio EB4APL
On 05/11/2014 a las 15:27, paul swed wrote:
To a earlier comment I believe the NASA racks used Sulzers. Reason my 2 X
are NASA and still work just fine. :-)
Regards
Paul
WB8TSL
On Tue, Nov 4, 2014 at 9:33 PM, Bob Camp <[email protected]> wrote:
Hi
Yup I’ve seen that seller before. I’ve wondered a lot what they are up to.
Everything they sell is roughly 10X above the going rate. Most of it has
“buy it now” as an option.
If you need the manual, offer the guy the $25 that it’s worth and see what
happens. He may accept. Stranger things have happened. I’d only start the
process on something I REALY needed. Life is to short to play silly games
with some of these people.
Usual disclaimer - never bought from the guy, don’t know anything about
him, he may be a prince, he may have ties to the Society of Rome …I have no
idea.
Bob
On Nov 4, 2014, at 9:27 PM, EB4APL <[email protected]> wrote:
Hi Adrian,
I found one at ebay, item #251687322849 but the crazy seller wants $249
for it. All his manuals and books are tagged with so exorbitant prices
which is a shame because its commercial value is nil.
Regards,
Ignacio
On 04/11/2014 a las 16:34, Adrian wrote:
I got a nice old Varian R-20 rubidium frequency standard that would be
nice to get working.
To begin with, there is at least a problem with the voltage regulator
circuit.
Does anyone have a manual? I couldn't locate anything on the web.
Regards,
Adrian
_______________________________________________
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.
_______________________________________________
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.
_______________________________________________
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.
