Home scientists used thermocouples and calibrators. Homemakers tried food. Together these two groups find the electronic oven has some distinct advantages and a few unsolved problems.
Bishop, Virginia and Van Zante, Helen
"Scientists and Homemakers Look at the Electronic Range,"
Iowa Farm Science: Vol. 21
, Article 4.
Available at: https://lib.dr.iastate.edu/farmscience/vol21/iss8/4