FLED se

• Solar Cell 

• 2500uF to 10F Capacitor 

• 2N3904 Transistor NPN 

• 2N2906 Transistor PNP 

• FLED, Flashing LED 

• 2.2K ohm Resister 

• Motor 

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1381 se

• 3v+ Solar Cell ( see note )

• 2500uF to 10F Capacitor 

• 2N3904 Transistor NPN 

• 2N3906 Transistor PNP 

• CMOS 1381J Voltage Detector 

• 2.2K Resistor 

• Motor 

If you use a 1381J you need a solarcell that give 3 Volts or more. If you chose a other value:

C(2.0V)
E(2.2V)
G(2.4V)
J(2.7V)
L(3.0V)
N(3.4V)
Q(3.8V)
S(4.0V)
U(4.6V)

Be sure that solarcell will provide you enough voltage you need to acticate your circuit. Exemple: If you use a 1381S ( 4.0 V ) don't use a 2.7 solarcell to charge your circuit. 

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LM3909 se

• Solar Cell 

• 4700uF Capacitor 

• LM3909 LED flasher 

• 470uf for the timing capacitor 

• Motor (M) 

This is a GREAT and simple solar engine that you can build and minutes.

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MILLER se

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variable MILLER se

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• Solar Cell 

• 12 x 4700uF Capacitors 

• 2N3904 Transistor NPN 

• 2N3906 Transistor PNP 

• CMOS 1381C ( 2.0Volts ) Voltage Detector ( Reset )

• CMOS 1381U ( 4.6Volts ) Voltage Detector ( Discharge )

• 4 x diodes 1N914

• 2.2K Resistor 

• Motor 

Still been tested. This circuit is suppose to drive 2 Amper motor. This circuit is the property of Bill Bigge at The Board Room . The © is for the redraw of the circuit.