[time-nuts] Form factor

[Chris Albertson]

You can't plan a project like this around eBay junk.  How would you assemble
100 kits if each kit requires that you find a specific HP instrument on eBay?

If cost is a big issue then I'll go back to my first idea.  Make your PCB about
the size os a disk drive.  Then yu get a llength od 1 x 1/4 inch aluminum L
and bend it into a three sided "U" and attach it to three sides of the PCB.

The finished assembly should fit into any enclusre designed to hold SATA
disk drives.  A PC case could work but there are nicer looking boxes, rack
mount and diesktop

This trades a bit of metal working for the cost of a Hammond box.  But
the metal work requires only a hack say and drill.



On Tue, Dec 21, 2010 at 8:35 AM, Bob Bownes <bownes at gmail.com> wrote:
> I do the same with Tek 500/500series instrumentation plugins. You can get
> the TM504 mainframe for < $50 on ebay and scrap grade modules for < $10.
> Plus you get a linear power supply, backplane and already RF rated
> enclosure.
>
> On Tue, Dec 21, 2010 at 11:12 AM, <EWKehren at aol.com> wrote:
>
>> Hi
>> One source of boxes to consider is old HP equipment, some is very
>> reasonably priced, like 37203 for small boxes and a 59401A makes an ideal
>>  housing
>> for a Rb with clock GPS and backup power. Some times you can even use  part
>> of the guts. I even went as far as repackaging my 5062C into a HP case of
>> that generation, heresy in the eyes of some of you
>> Bert Kehren   Miami
>>
>>
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-- 
=====
Chris Albertson
Redondo Beach, California