Found in a Popular Electronics from the 80's, this circuit simulates the equivalent card game. The circuit is CMOS and can be supplied with voltages from 6 to 12 V.
We present a circuit formed by six voltage comparators. Each comparator will analyze the voltage...
This circuit can generate time base signals from 5 to 1500 Hz. We find it in a documentation about old neon...
In this circuit the CA3140, an operational amplifier, is used as a comparator with the zener diode...