We found this circuit in a 1965 General Electric documentation. The circuit generates synchronized 400 Hz pulses. Modern components can be tested.
This is stage is transformer coupled and was found in na old publication of the year 1958. The...
This circuit is from the magazine 73, for radio amateurs, from the 80s. The circuit uses common...
This indicator circuit used and game machines (arcades) to indicate that the machine is being...