[time-nuts] HG 414A Rubidium

[Bob Camp]

Hi

Are we talking about a 2ns 5345 or a 53181? They are vastly different
devices. The counter you asked about originally is approximately 10X better
than the one in the article you reference. 

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Greg Broburg
Sent: Friday, March 25, 2011 11:59 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] HG 414A Rubidium

Hi Bob;

ok, I understand that you are not a fan of this idea
but other people might be.

Your'e right about the price (I paid 200 for my 53181A
plus another 150 for the ovenized oscillator option)
but there is a lot more to be had here. Id say that for most
people it would be about following the story. There is a
lot to learn about what makes these guys tick that is fun.
Lets start with the HP Journal from June of 1974 on the
web just a click away. Price is zero money.

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

I think that most people are past the issue of what can
be done in the basement.  If you have a problem then
somebody else has been there before you and then
you learn something. I started working with complex
chip layout and design (processors /FPGAs) in 1990
and later on mentoring others as to how assemble
prototypes not long after. It is my belief that when you
propose to use a new part that you are also thinking
about how you are going to assemble it to test the
circuit Go to youtube there are several videos of how
to fancy complex stuff. A lot of people use pizza ovens.

Have a look at the website for Scottys Spectrum Analyzer.
Much of what is done here was unthinkable in the basement
10 years ago. http://www.scottyspectrumanalyzer.com/

Regards;

Greg

On 3/25/2011 8:38 AM, Bob Camp wrote:
> Hi
>
> The whole counter thing has been run around in a thread back a month to
> three months ago. It's in the archives.
>
> Bottom line - if you want a cool one, it's got parts in it that are tough
to
> work with in a basement setting. If you stick with easy to solder parts,
> it's not as cheap / fast / cool. For reasonable performance, price gets
> above that of a "who knows if it works" 5370 on the auction sites. Even
the
> 53181 it's self can be had fairly cheap if you spend a while (months)
> shopping for one. The last 53181 I bought was under $500.
>
> Bob
>


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