Re: Extech EX410A DVM Don't Buy

On Sat, 05 Oct 2024 17:30:03 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:

On Sat, 05 Oct 2024 14:37:55 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
(chomp)

I remember the Wellers from work, had one for years at home too.

>
I remember and like the reassuring clicking sound of the "magnastat"
contacts.  If I don't hear the clicking, I know something is seriously
wrong (such as the contacts welded together).
>

I think they used a Curie effect magetic path to switch the heater
contacts. Metcal uses Curie effect without the contacts.

Seems to me that a thermocouple and a heater would work as well.