By the way, there are some 10811 with the card needed for the 5328 on ebay
right now. There is a small card added to the back of the 10811 specific to
that counter I guess.
-------- Original message --------From: Glenn Little WB4UIV
<[email protected]> Date: 11/29/18 6:43 AM (GMT-08:00) To: Hugh
Rice via time-nuts <[email protected]> Subject: Re: [time-nuts] 5061B
service manual;
10811 oscillator (non-working?) free to good home HughIf 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
LittleOn 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 28417Amateur
Callsign: WB4UIV [email protected] AMSAT LM 2178QTH: 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 classof the Amateur that holds the
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