This commercial receiver for the mid-wave range of the 1960s was found in Japanese documentation at the time. The supply is 9 V, and the configuration is superheterodyne type.
We found this circuit in a 1998 documentation. The circuit can also be used as a minutery...
The TAA131 used in this circuit is not very easy to find today, but an equivalent low power audio...
These three circuits have different treble responses. We found them in the February 1970 issue of...