Toaster ovens use spring wound timers, as they are simple and easy to mass manufacture. Its a simple time off delay Mechanical Washing machines don't use sprin

Toaster ovens use spring wound timers, as they are simple and easy to mass manufacture. Its a simple time off delay Mechanical Washing machines don't use spring wound clocks, they run of the AC frequency of the mains. It generally drives a small solenoid that increments the clock. The control drum is significant more complex than a toaster ovens timer My current electronic washing machine saves its current cycle state when it looses power, and happily continues when power resumes 2 hours later (unlike my dishwasher, which does not). Although You'd have to start it before turning off the relay, so not as easy as the old mechanical dials