This is the power supply circuit for the amplifier in the previous circuit. The source is adjustable and uses power transistors of the time. The AC transistor must be mounted on a heat sink.
Similar metronome settings can be found at several points in this section. This was taken from a...
This transmitter for the 40 meter or 7 MHz band was found in a magazine 73 for radio amateurs of...
This circuit is from a 1998 Electronics Now and can be easily assembled since it uses a common...