[clug] [For Sale] Anyone else want an elster reed switch probe?

[Michael Still]

On 6/2/10 4:20 PM, Mike Carden wrote:
>> this will cause a reed switch to close, causing a pulse of electricity down the wire.
>>
>> No no, the other other end :)  I know how the reed switch works, silly!
>
>
> Well, any properly pedantic nerd would point out that closing a reed
> switch won't cause much of a pulse down the wire (ignoring eddy
> effects) where a magnet passing a coil would create a such a pulse. A
> reed switch will need a bias voltage waiting to initiate a current
> flow when the switch closes.
>
> But I'm sure there are no such annoying pedants to be found around here.

Yeah, you provide a voltage, which appears on the other side when the 
switch closes. Amazing stuff this electricity, I really think it will 
catch on.

Mikal