Found in an Electronic Design of 1964, this circuit operates with control voltages from 0 to 12 V determining the duration of the pulses.
This circuit was found in an old Linear Technology documentation. The working principle can be...
Scratch is the scratching noise that occurs on old, scratched discs and the rumble is the...
This 6-transistor receiver was manufactured in Japan in the 60s. The circuit is superheterodyne and has a 6V...