Double limit detector (CB9589E)

Found in ancient American documentation, this circuit uses some components from the time, such as comparators.

| Clique na imagem para ampliar |

Servo speed control (CB8956E)
Found in a 1970 documentation, this circuit makes use of 741 operational amplifiers that are...
Automotive Alarm (CB4777E)
We found this automotive alarm circuit in a 90's Popular Electronics circuit. The circuit emits a...
Digital to Analog Converter (CB397)
This circuit source a voltage proportional to the number of the input pulses. The circuit has a...