Connectors (was: NEXT Color Printer find

From: jpero_at_sympatico.ca <(jpero_at_sympatico.ca)>
Date: Mon Dec 31 16:58:19 2001

> From: ard_at_p850ug1.demon.co.uk (Tony Duell)
> Subject: Re: Connectors (was: NEXT Color Printer find
> To: classiccmp_at_classiccmp.org
> Date: Tue, 1 Jan 2002 02:08:07 +0000 (GMT)
> Reply-to: classiccmp_at_classiccmp.org

> > >Then I would suggest you're working with engineers who are not
> > > particularly knowledgable about practical electronics. If they're (say)
> > > mechanical engineers or civil engineers, then no problem. If they claim
> > > to tbe electronic engineers I'd probably dispute that claim.
> >
> > I agree, last year they couldn't even build a set of LED Christmas tree lights
> > without blowing them up, never heard of constant current drive !!! I'm not
>
> Do you own a suitably large LART?
>
> I must have told the story of the 362.8 ohm resistor. In case I haven't,
> it goes like this.
>
> I was working in a lab at a university over here when some final year
> engineering student asked me for a 362.8 ohm resistor 'as there are none
> in the drawer'. I said that I was not suprised, and asked him what on
> earth he needed it for.

Glug! Almost sprayed water on my precious IBM keyboard.!
Even 180 Ohms is good enough driven directly from TTL. :-)

> The answer? An LED current limiting resistor. Apparently he'd taken the

Snip!

> I've come to the conclusion that the best (electronic?) engineers and
> programmers are all essentially self-taught. It's probably much the same
> in all creative subjects.

Practical experience and hard knocks school is your best teacher
, I agree. Blow up, screw up some stuff as you learn as you go on is
required. Straightening out those mistakes if you can discover is
excellent way to learn.

> [...]
>
> > Agreed, I believe any so called engineer should have a practical "hands on"
> > experience in both hardware and software, after all if they don't understand
> > the
> > basics they are of little use.

> I wonder if the HPIB spec (if it was ever published) specifies the
> jackscrew threads.

Might be not existent.

4-40 is right for those kind.
 
> -tony

Cheers,

Wizard
Received on Mon Dec 31 2001 - 16:58:19 GMT