Tan Timer by IC 4060 and IC 4017
Six timing positions suited to different skin types
Timing affected by sunlight intensity
Six timing positions suited to different skin types Timing affected by sunlight intensity. 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 intermittent signal and, to stop it, a complete switch-off of the circuit via SW2 is necessary.
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