MOSFET Stage (CB25576E)

This circuit shows how to use the 4007 MOSFETs in an amplifier stage. We found it in an Electronics Now issue from May 1993.

Current sensor with 100 M ohm input (CB9663E)
This sensor circuit for currents of the order of nanoamperes was found in an American...
MW Experimental Radio (CB4517E)
This circuit was obtained from a 1964 magazine and has some interesting features such as the input...
Automatic call recorder (CB8656E)
Suggested by a 90’s Radio Electronics, this circuit automatically activates the recording switch of an...