tan timer schematics

Posted on Feb 5, 2014

This timer was designed for people wanting to get tanned but at the same time wishing to avoid an excessive exposure to sunlight. A Rotary Switch sets the timer according to six classified Photo-types (see table). A Photo resistor extends the preset time value according to sunlight brightness (see table). When preset time ends, the beeper emits an

tan timer schematics
Click here to download the full size of the above Circuit.

intermittent signal and, to stop it, a complete switch-off of the circuit via SW2 is necessary.

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