This circuit was found in the February 1981 issue of Radio Electronics magazine. The circuit uses an active component of the time and is suitable for audio signals.
This circuit with an integrated circuit of the time was found in the magazine Radio Electronics of April...
This is a converter stage found in old transistor superheterodyne radios. The circuit is for...
In its original version of a 70s manual, this integrated amplifier, which is uncommon today, was...