This circuit appeared in Radio Elecronics magazine in 1968. The operating circuit is a general-purpose type at the time and the power supply must be symmetrical.
The resonant circuit depends on the crystal frequency that can go up to a few megahertz. The...
This circuit is from the 1983 Intersil Databook. The display is plasma and must be excited by a...
This is a typical common emitter amplifier stage configuration. The transistor can be used...