Interesting.
Most metals have about the same temperature coefficient of resistivity as tungston:
? ??
Must be a very fine filament so it changes temperature quickly when exposed to air of a different temperature.
A strand of 0000 (very fine) steel wool would probably work.
The light bulb filament has the advantage of already being in a convenient holder.
If you need a better temperature gauge for your oven, could crush the oven light.
Already wired in with high temp tolerant wire insulation.
Keep a flashlight handy, hung from a nail in the wall near the oven.
Jerry, KE7ER
toggle quoted message
Show quoted text
On Fri, Jun 4, 2021 at 12:20 AM, Tom, wb6b wrote:
One more interesting use of crushed lightbulbs. A person who "served" on Antartica for a year gave a talk at a club meeting. One on the experiments measured the outside temperature at an remote station using 100 watt light bulbs with the envelopes broken off. For some reason they needed very fast response time, and the light bulb filaments did the job. ?
