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The computer brained dryer might be better at temperature regulation but otherwise I see nothing that the mechanical timer-control and simple electronics can't do.

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In the old mechanical brained dryers a simple set of thermostats regulated the temperature. They can be purchased for $5 on ebay to replace if they act up. A new computer brain? $100-$200

If it's available, that is! I know most appliance repair techs are not going to go through this, but there are probably two components on the computer control that I can not buy off the shelf. The SMPS transformer and the cpu with masked firmware. The washingmachine had a third, the 3phase driver for the big motor, which is off the market now.

I figured the simplest dryers just had a "one heater, or two in series, or two in parallel" switch and a melting safety.

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