6 Feb
2018
6 Feb
'18
10:43 a.m.
It might be a good idea to put color codes like on a resistor on the connector plug. You
know, green for 5 gold for + center pin and silver for - center pin.
No gold or silver band would be AC.
Brown Red Gold would be 12VDC + on center pin.
Dwight
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Chuck Guzis via cctalk
<cctalk at classiccmp.org>
Sent: Tuesday, February 6, 2018 7:28:38 AM
To: Tor Arntsen via cctalk
Subject: Re: [RESOLVED] Re: EPROM baking
On 02/06/2018 12:05 AM, Tor Arntsen via cctalk wrote:
.. which led me to accidentally power a USB hub with
12V instead of
5V - the power supplies looked the same, had the same plug, and I
couldn't read the tiny writing on the warts. That blew the nicest
notebook PC I've ever found - I bought it in Japan at a special
price, the normal price is out of my league.
I've done worse--used an AC-supply wall wart on a piece of equipment.
Poor thing didn't stand a chance.
You'd have thought that after all these years, some sort of keying
system would have been developed, but I guess not.
--Chuck