Brian,
The support board part number indicates that it was used in a model HP 5328A or
B counter. I find that some versions of that model used a 05328-60027 board.
Maybe you misread the part number?
Anyway, There are a number of complete manuals for the 5328A & B counters on
the web,
I have an OCXO I pulled from a dead HP counter. The oscillator itself is a
Piezo Systems 2810007-1 and it is plugged into, what appears to be, a
buffer board, HP part number D23703F 05328-20027.
Three questions:
1. Does anyone have the pinout for the oscillator?
2. Does anyone have the pinout
HI I have had experience with two 10811 oscillators which turned out to have
the same problem.
Inside there is a gold plated ferule mounted in teflon at the junction of the
tuning diode and
the transistor, obviously considered a very high impedance point, or may be
just sensitive to leakage.
Hi. I don't have a good answer to why both of your oscillators would have
drifted at once after the power cutout. However, I would be very interested in
taking a look at the bad 10811A. I have always been fascinated by these and
have wanted to take one apart (and try and understand/fix it) for
Hi
The change is suspiciously close to the electrical tuning range of a typical HP
OCXO.
The answer may be a failure of the bias on the EFC line …..
Bob
> On Nov 2, 2018, at 2:51 PM, Walter Shawlee 2 wrote:
>
> I have several of these as the -010 high stability timebase options
> in my
Tom,
Thanks so much. I downloaded both the suggest software packages and they
look excellent. It appears to me that my Arduino with phase comparator
should be a data collection only environment since these programs seem to
have all the whistles and bells I'm looking for. I would appreciate
I use NI USB interfaces, They are reliable process ATN messages and of course
have the vast programming library associated with NI interfaces.
Used ones can be found on the well known auction site for 250-400 bucks.
Make sure you get the BLUE ONES the Brown ones are USB 1.0 and are
How important is ATN in a typical time-nuts usage ?
I can see it being important in a complex ATE setup where some instruments
are automatically providing data to a schedule and need to be serviced, but
in my understanding the time-nuts case is often capturing a stream of data
from a single TIC.
I use a national instruments PCI-GPIB card in a Windows 10 PC, works just
fine. Usually can find them <$100 on eBay.
I've also used a HP/Agilent 82357A (or B) which does USB-GPIB for those
cases when you need it for a laptop or something else without a pci or pcie
slot.
I understand the USB
So I've got some test equipment devices (mostly HP) with GPIB (or
actually HPIB) connectors. Also a few others as non-HP stuff.
Mostly I have talked to them with a NI GPIB card in a PCMCIA slot in a
laptop. Works great but the small notebook PC I have with a PCMIA slot
is from the early
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