[time-nuts] Speaking of counters...

paul swed paulswedb at gmail.com
Sat Dec 25 22:18:50 EST 2010


Well you have sighted all the wizmos that I also have and use.
As I say they work and have been working for4 a long time.
Regards

On Sat, Dec 25, 2010 at 9:04 PM, Pete Lancashire <pete at petelancashire.com>wrote:

> 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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