- The R1 can be a 15K @ 20°C ,N.T.C thermistor.
- The M1 can be a 12V,700mA fan motor.
- The capacitor C1 must be rated 25V.
- The circuit can be powered from a 12V PP3 battery or 12V DC power supply.
- Assemble the circuit on a good quality PCB or common board.