Found in the May 1988 issue of Radio Electronics magazine, this circuit is sensitive to small variations in input voltage. The power supply must be symmetrical.
This is one of the many approaches we have on the site for this low power 0.5 W amp using the...
This circuit of a 1969 Electronic Design uses RTL logic. The setting can be adapted to TTL. The...
This circuit was obtained in a 1979 publication but can still be easily assembled today by...