Found in a 1964 Electronic Design, this circuit shows how to modulate a signal with a dynamic low impedance microphone. The circuit operates in the FM range (88 to 108 MHz).
Found in 1969 Ferranti documentation, this small font is characterized by its low ripple....
This source provides a 1.5V voltage used in the power supply of model aircraft spark plugs. The...
Unlike the previous circuit, which is an inverter type, this one is non-inverting. The circuit...