Personal amplifier (CB8928E)

This circuit was found in a 90s Popular Electronics. The integrated circuit used is uncommon today. The power is about of 2 W.

| Clique na imagem para ampliar |

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...