This TTL heads or tails circuit was found in the July 1973 Radio Electronics magazine. The LEDs are types of the time. Note the symbolic representation of this component.
This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output...
This bandpass filter has a simple feedback system. The component values can be calculated using the...
This hysteresis comparator was found in the 1994 National Semiconductor Linear Applications...