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R!

wrote in
:

snip

Some of the old Maytag dryers had a simple dryness control that
consisted of two sensors in the tub that were located on the paddles in
the tub (looked like coilled up wire), an electronic dryness control
that had a large value resistor (from rectified AC) feeding a capacitor
that was tied to one of the sensors in the tub with the other end
grounded to the frame of the dryer as well as thr second sensor was
grounded, and a solenoid that released a holding switch.

-------|---/\/\/\/\/\/---(Sensor)
|
=
|
--------------------------(Sensor)

as the clothes dried the voltage was allowed to rise across the
capacitor....

When the voltage was high enough a neon bulb fired and triggered the SCR
(Silicon Controlled Rectifier) in the electronic controll to engage the
release solenoid, ring the bell and shut off the dryer.

The electronic controll had the capacitor right on top of it with a
strap around it...

This replaced the standard timer system...

Note I simplified the discription quite a bit, left off such things as
fabric settings and such...

R!