Braun

ET 66

Dieter Rams + Dietrich Lubs

1987

Braun ET 66 control

The most minimal of Rams' calculator designs. Notable for its lack of sliding switches. All operations are by convex circular button, a logical regime dictating the rather beautiful but practically illogical separation of  'on' and 'off' buttons (green and red). Generally considered the quintessential Rams calculator.  

Example held in MoMA permanent collection.

See also this ET 22 of close to a decade earlier, almost exactly twice the thickness of the ET 66, the last before the transition was made to to LCD display.

condition: Full working order and excellent condition. With unmarked slip-case. 

price: £180