This 1967 General Electric circuit makes use of an array of 3 (integrated) transistors for an amplifier stage. The circuit has a 500 mV output.
This circuit was found in a 1990 Electronics World magazine. The circuit can be mounted today by...
This 5-band function generator circuit was found in the April 1994 Electronics Now magazine. The...
Frequency Indicator (CB6342E) This simple circuit was found in an Exar publication from the 1970s....