microwave controls
I remember when I purchased my 1978 Wards (made by Sharp) microwave in 1978, there were 3 types of controls available
manual dial
mechanical digital
electronic digital
I, of course, went for the TOL electronic digital model with the browning element and temperature probe (both options you don't see anymore), since I worked for Wards at the time and unlike some companies, Wards would let you use your employee discount even on sale items. That microwave is still serving 6 people today, though the glass tray broke and the door latch is getting sort of flaky, but I think I've found a palce to get a new glass tray, and I'm sure the door latch can be fixed (it just has gotten so that it takes 2 hands to open the door, one to push down on the latch while other hand pulls on the handle, whereas as just pushing the latch used to "pop" the door open). It is a little "slow" speed-wise compared to today's ovens (only 600 watts, powerful for the time, but no match for new 1,000 watt ovens). Only thing that's ever gone wrong with it all these years is blowing an internal fuse.