In message , T i m
writes
On Mon, 29 Aug 2005 01:29:42 +0100, Derek ^
wrote:

On Sun, 28 Aug 2005 23:13:13 GMT, T i m wrote:



Well yes, but do you know what's a good result and what's bad? DMM =
high impedance. Solenoid electromagnet = low impedance.

True, and the best way to measure voltage (high imp DMM) if I
understand it correctly,

It is indeed, but to be meaningful *in circuit*. IE loaded.

True, but only if the normall 'load' is significant (like a watch
isn't to a watch battery)? If this 'device' is capeable to making
something else actuate (like a valve) I could always measure the
current though it in and out of a flame as well?


A thermocouple will produce the current necessary to maintain the PD

--
geoff