This electronic roulette circuit with 10 numbers was found in a Popular Electronics from the 80s. The circuit uses indicator LEDs and the transistors are general purpose.
In the figure we show how to implement a voltage reference with the ON Semiconductor rail-to-rail...
This circuit is from a technical documentation from 1978. The maximum output current is of the...
This RF and audio follower applies its signals to a small amplifier. The FET can be any...