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.
This circuit is from 2005 documentation. It automatically starts an irrigation pump when the...
Found in an old Radio Electronics, this circuit uses common components today. The resistors of the IC...
This is a traditional oscillator configuration with the 741 found in a 1980 publication. When...