FET IF Amplifier (CB4289E)

In the figure we have an IF amplifier step using a MOSFET. The circuit was found in a 1980s documentation, intended for FM receivers of the time.

| Clique na imagem para ampliar |

555 Alarm (CB4880E)
The phototransistor of this alarm can be of any type. The relay must be sensitive type according...
Multimeter (CB3806E)
We find this circuit measuring from 1 to 1000 mW of power from small transmitters and oscillators in...
Power Supply with SCR from 0 to 16 V x 5 A (CB3842E)
We found this thyristor power supply in a 1987 documentation. It uses common SCRs as rectifiers and...