This circuit was found in a 1980s documentation for amateur radio. The circuit makes use of components of the era, but modern equivalents can be used.
In the figure we have an inductance bridge for values between 1 and 30 uH at a frequency of 5 MHz....
This ouput push-pull stage using bipolar transistors was found in a publication of the year 1968....
This circuit is from an American magazine that no longer exists, Modern Electronics, in a February...