Kitchen timer - accurate timing up to 15 minutes

11-58 — elektor november 1982 kitchen timer kitchen timer accurate timing up to 15 minutes Most modern cookers are equipped with a cooking timer but this invariably has some limitations when the accurate timing of short periods is called for. The circuit described here has excellent resolution up to 15 minutes and is very easy to set. The end of the preset time period is announced by an electronic gong rather than the usual buzzer. The timer is completely self-contained and is ideal for short cooking periods where accuracy is required. The two most critical parameters in cooking are expertise and timing. We have to admit that our knowledge of the first (and foremost) require- ment could be written on the outside of a 2716. However, the second point is a different kettle of fish. If elec- tronics is good at anything at all it surely must be period timing. The circuit here allows four independant time periods to be preprogrammed and selected when required. A further asset of the c...