[time-nuts] Speaking of counters...

[Pete Lancashire]

other then big, noisy and somewhat of a power hog, they to me are one
of the best bargains out there if you don't have a big budget.

HP Journal that talks about them

http://www.hparchive.com/Journals/HPJ-1974-06.pdf

if your not in a hurry and you use GPIB or think you will in the
future, look for option 12. I have
seen fully working 5345As go for as little as $25 on the E. One day I
went to do a local pickup
of a piece of Tek gear and the guy had about 10 5345A's all not
working from a DOD sale. I went
home with a full pickup for $50.

001 - Room Temperature Time Base
010 - General Purpose Interface ( gpib format, talk only)
011 - General Purpose Interface (Digital I/O plus control of all
functions except input amplifier)
012 - General Purpose Interface (similar to option 011, but adds slope
and level control)

Where I will never give mine up is the combination of the 5355A
plug-in and one of the 5356A/B/C
heads. It brings the counters input as close as you want to your work.

You do have to be careful on getting a non damaged head

There is 5245A that will take you to 4Ghz. and an App note

http://www.hpmemory.org/an/pdf/an_173.pdf

Lastly there is the HP10590A plug-in adapter that lets you use the
5245 plug-ins. For me I use
the Video plug-in and one that I made myself from a gutted one.

Lastly there are S/N ranges but I can't remember them ..

-pete


On Sat, Dec 25, 2010 at 3:17 PM, Burt I. Weiner <biwa at att.net> wrote:
> What is the groups thoughts on the HP 5345A?  I have one that I use as a
> general purpose counter and it seems to do a fine job.  I like the ability
> to count low frequencies fast, although sometimes I notice some dithering in
> the count that I'm attributing to issues in the counter itself rather than
> my known source.
>
> Burt, K6OQK
>
> Burt I. Weiner Associates
> Broadcast Technical Services
> Glendale, California  U.S.A.
> biwa at att.net
> www.biwa.cc
> K6OQK
>
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