This circuit is from an old documentation, making use of an operational of the time. The circuit can be adapted to use modern components. The power supply must be symmetrical.
This is a classic FM amplifier IF amplification stage configuration. The circuit is from a 1980s...
We published this circuit in a magazine of the 90s, but it is still present by the components it...
This amplifier, obtained in an Argentinian publication of the 1970s, provides a 6 W output. The...