This 3-digit circuit was found in the 1992 special edition of the Radio Electronics Handbook. The circuit produces a standard voltage for bench testing.
This two-transistor circuit was found in the September 1971 issue of Radio Electronics magazine. The...
This circuit has its frequency controlled by a 1MHz crystal. The circuit must be powered by a...
A portable radio with greater power, such as those using medium or large batteries, can be used as a...