26 Jan
2004
26 Jan
'04
2:41 a.m.
On Sun, Jan 25, 2004 at 09:15:21PM -0800, Lyos Norezel wrote:
Doc... this is a BAD idea... I've fried numerous
devices by using the wrong power rating... even if it was only 1mA off. The voltage almost
never matters... as long as the power is correct. Hope this gets to u before you fry your
machine.
Lyos Gemini Norezel
Woah! Stop right there! The voltage _might_ or _might not_ be critical
depending on the nature of the circuit just to the left of the plug (i.e.,
a 7805 can take a wide range of voltages), but I have seen other devices
blow from being just a volt or two off. Some things work at *only* the
rated voltage.
Amperage is another matter entirely. If the brick offers too much, that's
no problem. The device will draw what it needs. Where you run unto
trouble is when you use a brick that's too small.
If the device wants 800mA and you plug in a brick at the right voltage
but at 500mA, I would say that eventually the brick is going to smoke.
If you give it a 1.2A brick, all will be well.
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 26-Jan-2004 08:30 Z
South Pole Station
PSC 468 Box 400 Temp -19.5 F (-28.6 C) Windchill -46.5 F (-43.6 C)
APO AP 96598 Wind 9 kts Grid 065 Barometer 688.8 mb (10297. ft)
Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html