This circuit provides 2.5 W of power with 6 V supply and 4-ohm speaker. We found it in the Radio Electronics magazine of April 1990.
We find this circuit in a documentation for engineers from 1971. The circuit generates rectangular and...
This circuit is from a 1980's documentation for telecommunications. The circuit is used in SSB and...
We found this circuit in the July 1994 Radio Electronics magazine. The circuit uses a...