This very low power circuit is based on the ICL7860. We found it in an Electronics Now from April 1995. The output current is very low.
This is an old circuit with a unijunction transistor from that time. We found it in a Radio...
Found in an old publication about neon lamps this circuit works directly connected to the power...
In the figure we have the way to connect 6 solar cells in order to obtain higher voltage and...