Monostable TTL (CB20797E)

This circuit, which can be used as a shield, has its time determined by RA and C connected at the input of the 555.

| Clique na imagem para ampliar |

Alarm (CB196E)
When the sensor X1 is opened, the relay is energized. When waiting, the current drained is very...
4-Range AC Millivoltmeter (CB25230E)
Based on the LF256 operational amplifier, this circuit was found in the September 1989 issue of...
70mA current regulator (CB8821E)
This circuit was found in a 1968’s Motorola documentation. The transistor is from that time. The...