On Thursday 15 May 2008 18:15, Tony Duell wrote:
Or, of course,
I could bodge my universal power supply into powering the
Be careful doing that if one side of the universal PSU is grounded. Quite
a few simple DMM circutis do not have the -ve side of the battery
connected to the -ve input terminal.
Indeed. My Simpson 461 for one example, will suffer some nontrivial damage
if you connnect either of the test leads to either of the battery
connections -- blows up some resistors and a reference diode, from what I
recall. Dumb way to design something, but...
multimeter...... (don't dare suggest buying a battery! ;))
Unless your meter takes some obscure battery, I am suprised you don't
have them in stock. ...
-tony
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin