How to Improve an Electric Clothes Dryer (phase 1)

Electric clothes dryers are very simple devices which have not changed much in 50 years. While electricity is very efficient at generating heat (virtually 100% conversion from electricity to heat), it is not terribly economical. While there are now (as of 2024) heat pump based dryers, they are still fairly expensive (and I started this project almost 10 years ago anyway). I have undertaken to improve the economy of the basic, very reliable, electric clothes dryer. My clothes dryer is a White Westinghouse Electric 27″ drum unit from 1988 or so, about 36 years old. I have had to repair...