This circuit was found in a documentation of the time. It consists of a receiver with two RF stages for the medium wave band. The audio power is on the order of 2 W.
This circuit is intended to reinforce old car radios, having been found in 1997. At that time,...
This oscillator found in Electronics Now of the 90s is of the Normally-Off type, being triggered...
This circuit was found in a Popular Electronics of the 90s. The operational amplifier admits...