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.
a This circuit was obtained from a 1978 Practical Wireless. It causes a low-power 1.5V lamp to...
This game consists of a variation of the Nerve-Test with the difference that errors are indicated...
This Power supply is intended to Power small loads with currents up to 30 mA. The voltage depends...