[sdiy] External power connectors

[Roy J. Tellason]

On Friday 03 December 2004 03:38 am, Colin Hinz wrote:

> >   > Major problem with using them is you have to cut a square hole
> >   > for the jack.  Well, that and to be safe you'd have pins sticking
> >   > out of the back of your equipment ( female on power supply, male
> >   > on equipment, cables are all male/female )

These the same one that the ARP 2600 used for keyboard?

> > I think it's completely reasonable to drop the ejaculation metaphor
> > for power supply cables.

> > (Yes, I'm being completely silly and completely serious at the same
> > time.)

> Male-male cables are OK if you practice good cable hygiene. Don't
> let any live ends wriggle around where you don't want some volts,
> and you'll be fine.
>
> And on a related note:
>
> I recently got a bunch of 4-pin XLR connectors (both male and female)
> at an unbeatable price.

I wouldn't mind finding a deal on those,  provided I could also find both 
cable and chassis mount.  :-)

> Now, I'd *never* use a 3-pin XLR for power, but what about this odd form?
> I've never seen 4-pin connectors on any kind of gear. Who uses them, and for
> what applications?

The last time I used those was to connect the top and bottom halves of a 
Rhodes Suitcase,  to replace whatever it was that was being used before and 
had gotten flaky.  And that was something more than 20 years ago...

Hey,  you guys that are talking about +15, -15, +5, and ground,  wouldn't it 
be a better idea to use a separate ground run for the +5?  I mean,  that's 
where I'd be running LEDs and logic and such where you'd get all sorts of 
nasty switching transients that you really want to keep out of the audio side 
of things...

And I have seen a reference somewhere to XLR-type connectors with _five_ pins, 
though I don't recall where -- and I don't even want to think about what 
they'd cost.