This circuit uses uncommon Texas Instruments components today. The circuit is from an American documentation. Transistors are commonly used PNP. The display is 7 segment multiplexed.
Found in Radio Electronics, this circuit doubles the voltage of the 117V power grid to activate...
This amplifier circuit with a low power MOSFET was found in Popular Electronics from the 90s. The...
This circuit is from a Popular Electronics from the 90s. The circuit requires extreme care in use, as...