This circuit transforms 0 and 6 V signals into -4 to 10 V signals and can be used in a shield. The circuit uses transistors that are still common today.
Suggested by General Electric in a 1967 documentation, this circuit replaces the Thryraton tubes used at...
This circuit came out in a Popular Electronics from December 1995. It is a double T configuration that...
This circuit can measure capacitances in various ranges using a common analog indicator. The...