On 9/27/2013 9:14 AM, Collins, Graham wrote:
One of my favourite cases for housing projects is to use an HP 37203 HPIB
extender. Remove the PC Board and you are left with a power supply that is
suitable for many things (or remove if not up the job), plus there is a BNC
connector on the back side plus a spot where the GPIB connector poked through
which can be repurposed for a D connector suitable for the task at hand.
I pick these up whenever I see them at surplus places, online, or at swaps when
the price is right. They can be had at such places for $20 or so but eBay
prices tend to often be much higher.
Cheers, Graham ve3gtc
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of Tim Shoppa
Sent: September-27-13 10:49 AM
To: Bob Stewart; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Case for Rb Standard?
I am a fan of old stamped sheet metal mini-PC cases, and also a fan of the clamshell
"A/B" switch cases.
Usually the PC case is thin stamped sheet metal but often has a plastic fascia
that goes over the sheet metal. They have lots of ventilation holes, unlike the
clamshell A/B switches which tend to be thicker metal (didn't need stamping for
rigidity) with fewer holes. If I need a DB-25 or DB-9 hole... the A/B serial
switches are real attractive because most of them have that kind of holes and
sockets in them already.
Usually I just pick these out of the trash but if need be they are only a few
bucks new.
http://www.b2b-computer-case.com/mini-itx-case/04.htm
http://www.cablesdirect.com/prodimages/CA260X_LR.jpg
Tim N3QE
On Thu, Sep 26, 2013 at 11:03 PM, Bob Stewart <[email protected]> wrote:
I've had the Rb on the shelf for a few days next to a few old 3.5"
disk drives, and it suddenly struck me that they're about the same size.
External drive cases and PSUs are "cheap as chips", as they say, so I
was wondering how many people are using an external drive case to hold
their Rb standard? Any brand favorites?
Bob - AE6RV
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Picked up a pair on EBay awhile back for this very purpose. Paid $20
for them. I needed a case and PS for a pair of HP attenuators...
Randy, KI6WAS
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