This amplifier uses an integrated circuit from the 70s, which is no longer common on the market. The circuit was used at the time as a sound output stage for televisions.
Found in an Electronics Now from the 90s, this circuit appears elsewhere in this section and...
This TTL circuit was found in the February 1973 issue of Radio Electronics magazine. The power...
This circuit was found in an old publication about transistor. The original trasistors are...