Source follower (CB6963E)

Found in American documentation, this circuit shows how to polarize a FET in bootstrap mode. The circuit applies to any FET.

Two Transistor Super heterodyne (CB20574E)
This circuit was found in an English publication from 1967. The circuit is for listening on a...
Comparator (CB5090E)
The HA2620 integrated circuit used in this comparator is from the 80's, but the setting can be...
Picoammeter (CB6192E)
This circuit was found in a 1980s Intersil documentation. The integrated circuit used is not...