Hugh
If still available, I wold like top get the 10811.
I have a 5328A counter that I would like to put a better timebase into.
Thank you for offering this.
I have an interesting story about a HP Cesium standard failure on a
submarine, if you are interested.
Glenn Little
On 11/29/2018 3:14 AM, Hugh Rice via time-nuts wrote:
Hello Time-Nuts people,
I have a 5061B factory service manual, and a 10811 oscillator (missing the
bottom cover and likely non-working) that I would like to give to a good home.
I stumbled across an e-bay listing for a 5016B service manual, and was tempted to sell
mine. And then I found the "time-nuts" group today, and decided finding a good
home for these items was a better choice.
If you would like these (I can separate), send me an email or reply to the
note. If there are several interested in these things, perhaps the community
can help me decide the most worthy home.
History of these things: -----------------------In 1984 I was a new EE graduate working
for HP's "PFS" (Precision Frequency Sources) organization at HP's Santa Clara
Division. My first job with HP was to be the junior member of a two man development team
to freshen up the 5016A Cesium Standard with procurable electronics, as some of the
components in the 5061A were getting obsolete after 10+ years of production.
Roberto Montesi was my fantastic mentor, and the lead of this little team. My
job was to redesign the clock display from TTL logic and LED's, to a 4000
series CMOS and a LCD display, and to redesign the battery charger board.
Both were great projects for a new engineer, and I was able to dramatically
simplify the designs with modern components. Roberto redesigned the main
power supply board, and the frequency divider module, plus some other stuff.
(There is a good story behind a 10MHz 10811 oscillator, being divided down to
5MHz, and then multiplied back up to 10MHz before being presented to the
customer on the front pannel. )
One of jobs on the 5061B program was to update the service manual. I was the engineering
editor working with the service manual team to update all the text and schematics, and
text for the whole manual. The 5016A manual was about 1/3 yellow "change
sheets" from all the production changes over the years, and needed a clean reset.
The manual I'm giving away is my personal copy that I've been storing for 30+
years.
The 10811 oscillator was manufactured by the same department as the 5061B.
This one is a cast off I picked up some where and put in my archives box 30
years ago.
In 1993 I left Santa Clara division for the HP Inkjet Printer organization in
Vancouver WA, where I've worked for the last 25 years.
I'm currently living in Singapore, still developing inkjet printers, and will
be home for the holidays in a couple of weeks, and able to mail the objects
then.
If you read this far, and found this interesting, I could try to drag up some
more memories of the HP PFS days from the late 1980s.
Hugh Rice
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--
-----------------------------------------------------------------------
Glenn Little ARRL Technical Specialist QCWA LM 28417
Amateur Callsign: WB4UIV [email protected] AMSAT LM 2178
QTH: Goose Creek, SC USA (EM92xx) USSVI LM NRA LM SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
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