Here is a simple dickson inverter:
The simulation shows this:
Is it a problem with the simulator? I don't see why the capactior was charged to the voltage of the square wave signal? Why is the push-pull pair not working?
UPDATE: I have replaced the push-pull pair with a single NPN transistor, as suggested.
Is there a way to do this without a series resistor and single supply? (E.g. eliminate power disciplation on the resistor).
UPDATE: finally! Frequency increased to 100K, voltage source drives a voltage amplifier, and then the push-pull pair.
Frequency had to be increased because the load resistor was changed to 100 ohms. Now it can deliver about 150mA. Great!