This small receiver for the medium wave range was found in Radio Electronics magazine from July 1958. The circuit is for listening to headphones and powered by batteries.
Found in a 90s Popular Electronics, this sensor operates by infrared reflection. The components are...
This simple PWM circuit was found in the March 1991 issue of Radio Electronics magazine. The...
This flasher was found in an old Hands On, but uses common components. The optocoupler can be...