27 Sep
2012
27 Sep
'12
12:52 p.m.
Chris Tofu wrote:
Some older UK microwave ovens had a 'power control' which was an
electromechncial pulse width modualtor on the input side of the magnetro
trnasformer. Said device consisted of a motor that rotated onece very
couple of seconds, a cam arrangelemt and a mechnical latch that operated
a mciroswitch. At soem point on the rotation the swithc closde, the pint
where it opened dependded on the setting of the 'power' control.
-tony
C:The first uwave ovens had computers in them.
We got our first around 1980.
Actually the early microwave ovens had mechanical timers.