Found in a Popular Electronics from the 90s, this circuit provides 100 W of power. The power supply is from a 25V source and the integrated circuit must be equipped with a heatsink.
This is the power supply indicated for the previous circuit (CB18905E) providing a voltage of 24 V...
This simple 1-transistor reflex receiver was published in Radio Electronics magazine in September 1959....
In this Radio Electronics from May 1958 we have the now common use of the varicap in a frequency...