#ptc
Is there some standard for #PTC characteristic for temperature supervision of #transformers, I have some projects where they use PTC instead of PT100 and there is no datasheet for the PTCs, so I wonder if I should set the detection level to 2000 or 20000 Ohm or even higher?
Wax Motors Add Motion to Your Projects
Mon, 10 Nov 2014 21:00:40 +0000, by Adam Fabio
[electronicsNmore] has uploaded a great teardown and tutorial
video (YouTube link) about wax
motors. Electric wax motors aren't
common in hobby electronics, but they are common in the appliance industry,
which means the motors can be often be obtained cheaply or for free from
discarded appliances. Non-electric wax motors have been used as automotive
coolant thermostats
for years. Who knows, this may be just what the doctor ordered for your next
project.
As [electronicsNmore] explains, wax motors are rather simple devices. A small
block of wax is sealed in a metal container with a movable piston. When
heated, the wax … Read the rest
#classic-hacks #appliance #outdoor-thermostat #positive-temperature-Coefficient #PTC #thermostat #Wax-motor
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