Video switch (CB8740E)

This circuit for analog video signals was found in a 90s 303 Circuits. The used digital switch is a component still common today.

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Low hysteresis comparator (CB6085E)
Obtained from a 1980s Linear Technology documentation, this circuit has a hysteresis of less than...
Long time timer (CB9683E)
Found in documentation from the 1980s, this circuit makes use of discrete components of the time....
High Impedance Transistor Amplifier (CB12207E)
With this 1-transistor circuit we have a high input impedance and good gain. The circuit is from a...