This circuit has an adjustable output timer that will re-trigger at regular intervals. It includes a thermistor - and it will only operate when the temperature rises above a preset level.
COMMENTS Homer SUGGESTIONS

Repeating Timer No.5 - Photograph

MORE TIMER PROJECTS

Repeating Timer No.5
Schematic
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Circuit Board

This is a photograph of the heat controlled Repeating Timer No.5. It has an adjustable output timer that will re-trigger at regular intervals. The thermistor lets you set the temperature at which the timer will begin to operate.


A Photo Of Ron J's 
Temperature Controlled  
''Interval Timer''


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Repeating Timer No.5
Schematic
The Rest of Ron's Circuits Write To Ron More Free-to-Use Circuits Circuit Exchange International