This circuit was found in an Electronic Design. The circuit can be programmed to operate in different frequency ranges with the indicated characteristics. The IC component is uncommon today.
This 1 to 40 MHz amplifier is from a 1969 Motorola documentation. The components are of the time...
This ultra-low power circuit makes the LED flash. The circuit is powered by 15 V in this...
This circuit was found in a 1968 General Electric manual. The circuit is for 3 A motors but can be...