[time-nuts] Recently acquired 53132A

Pete Lancashire pete at petelancashire.com
Mon Dec 18 14:59:19 EST 2017


Bob,

I took the cover off, looks like the moisture inside the box was not that
bad, can't see anything
with corrosion, rust, oxides etc. And my first test sticking my head in the
box and sniffing for
the usual mold/mildew smells.

On that VFD .. I totally agree my a 3324A and a 8664A are pretty much no
longer have a disply,
found a hanger queen with a good display for the 8664A but the 3324A is now
pretty much remote
only, or push buttons and hope for the best.



On Mon, Dec 18, 2017 at 11:54 AM, Pete Lancashire <pete at petelancashire.com>
wrote:

> Tom,
>
> I should have re-read the model number, no wonder I could not find
> anything.
> Hopefully still a good $100 investment.
>
>
>
> On Mon, Dec 18, 2017 at 11:43 AM, Bob kb8tq <kb8tq at n1k.org> wrote:
>
>> Hi
>>
>> The 53132 is the older version of the 53230 counter. It’s been out of
>> production
>> and past "end of life" support for quite a while now. It’s main issue
>> measurement
>> wise is a group of issues that make it less sensitive (lower resolution)
>> than one
>> might think right at 10 MHz and to a lesser extent at 10 MHz / N or 10
>> MHz * N.
>> There is no known “fix” other than running it with a reference that is
>> detuned a bit
>> from 10 MHz. That obviously has some issues all by its self. I suppose a
>> fix could
>> be to not measure 10 MHz ….
>>
>> The biggest failure point in the counters that I have seen has been the
>> power supplies.
>> They apparently came as a completed module from an HP supplier. One
>> wonders who
>> that might have been …. I would strongly recommend taking a look at yours
>> to be sure
>> the water did not damage the board. I would also make sure the fan is
>> clean and
>> operates correctly. Clogged fans lead to dead power supply boards ….
>>
>> All that said, it’s a pretty good counter. I’m not sure it is worth a
>> crazy price, but there is
>> a price I would gladly pay for one. They all will eventually die as the
>> las of the VFD displays
>> wear out. At that point, hopefully we all will be running them via serial
>> or GPIB and
>> not even notice the issue.
>>
>> Lots of Fun
>>
>> Bob
>>
>> > On Dec 18, 2017, at 2:23 PM, Pete Lancashire <pete at petelancashire.com>
>> wrote:
>> >
>> > Friday I acquired a 53132A
>> >
>> > https://photos.app.goo.gl/xexnJcEmT8tEWXi73
>> >
>> > It does not have any options.
>> >
>> > It is from a place that sells "selected" E-waste. I was in a water
>> damaged
>> > box, and was from a DHL freight insurance sale. It's been in the box
>> until
>> > a couple weeks ago.
>> >
>> > Anyway, until now I've not followed the conversation on the issues with
>> > using the External Reference, which I would like to do. But don't see if
>> > there
>> > were any conclusions or anything that could be done other then the
>> issues
>> > where fixed in the "B" version.
>> >
>> > Is there a problem and a 'fix' that I missed searching the archives ?
>> >
>> > -pete
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>


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