This circuit for a frequency of 40 kHz was found in an old Electronic Design. There were no constructive data for the transformer used in the output.
Using transistorized regulators with NPN and PNP transistors we can create a symmetrical source of...
Found in Radio Electronics from the 90s, this circuit generates signals from 100 Hz to 1.5 kHz....
We found this circuit in a 1973 documentation. The null adjustment trimpot is 10k. The circuit can be...