[time-nuts] Case for Rb Standard?

Collins, Graham CollinG at navcanada.ca
Fri Sep 27 12:14:48 EDT 2013


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: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] 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 <bob at evoria.net> 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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