This circuit for the 3 to 6 MHz band was found in a 90s Popular Electronics. The components of the network formed by C6 depend on the frequency range to be covered.
This power control for powers up to about 10 W uses wire potentiometers in an arrangement that...
This simple transistor test circuit was found in Radio Elecronics magazine from October 1961. It...
Another triggered oscillator that we found in the November 1984 Radio Electronics magazine. The...