Radio with amplifier (CB20486E)

We found this circuit in a publication of 1991. The audio amplifier is an operational that admits equivalent.

1 W Amplifier with the TAA300 (CB6164E)
Found in a 1968 documentation, this small amplifier was very popular at the time being used in...
Touch Activated Motor II (CB1548E)
The simple touch of the fingers on a sensor causes this circuit to drive a motor that goes into...
LM386 Amplifier (CB4852E)
This is one of the many approaches we have on the site for this low power 0.5 W amp using the...