This circuit was found in a documentation of the 80s, having didactic purpose. For R1 values between 10k to 1M can be used. Transistors are general purpose types.
Found in a 90s EDN, this circuit makes use of components that are not currently common. The power...
This circuit contains a voltage doubler that comprises two diodes and two capacitors, in order to...
The circuit in the figure can supply voltages of 5, 8.9 and 12.5 V at its output, doing all this...