This 1968 EC&G circuit generates high voltage pulses for firing a gas LASER of the time. The components are rare nowadays.
This circuit is connected to the inputs X and Y of an oscilloscope to display the characteristic curve of a...
This crystal tester was found on a 90s Ham Radio. Transistors are commonly used. The circuit is for...
Found in a Popular Elecronics from the 90s, this circuit appears in other versions in this section and...