This circuit shows the voltage doubler working with a 555. LM555 has good drive 200mA, both Vcc and Gnd.
LM555 – Timer
LM555 Timer Circuits
Voltage Multipliers
Jochens High Voltage Page 
This circuit shows the voltage doubler working with a 555. LM555 has good drive 200mA, both Vcc and Gnd.
LM555 – Timer
LM555 Timer Circuits
Voltage Multipliers
Jochens High Voltage Page 