Common gate stage (CB7470E)

This circuit for FET was obtained from a 1977 Radio Handbook. The input impedance is 150 ohm. The output is high impedance.

4-Range AC Millivoltmeter (CB25230E)
Based on the LF256 operational amplifier, this circuit was found in the September 1989 issue of...
2 to 15 V x 500 mA power supply (CB18544E)
This adjustable source from 2 to 15 V uses transistors from the 60's, as indicated in the...
Video amplifier (CB8743E)
Found in a 90s Popular Electronics, this circuit is intended for amplifying analog video signals....