This commercial radio for the AM band was sold in Japan in the 1960s. The circuit has an IF of 455 kHz and is powered by batteries. The push-pull output gives a good audio power.
The integrated circuit used in this National Semiconductor project is not the most common and the...
In the figure we have the circuit of an amplifier for alternating signals with 10 times gain,...
I got this circuit from Hands-On Electronics, 1988. The American magazine no longer exists, but...