This simple neon lamp oscillator produces a 140 Hz, 40 V peak-to-peak signal. The frequency is given by the capacitor that can have its value changed. Note the high supply voltage.
In the figure we have the way to connect 6 solar cells in order to obtain higher voltage and...
July 2017 - Texas Instruments' new 3 A bq25601 single cell battery charger can be found on Mouser...
Circuits similar to this appear elsewhere in this section. The transistors can be BC549 (low...