This circuit was found in a 1969 EEE. The circuit uses transistors from the era that can be replaced by modern equivalents.
Found in a 90s Electronic Design, this circuit produces a pure 3 750 Hz sinusoidal signal. The...
We found this circuit in an old publication (1977) using common transistors at the time and now...
This circuit is based on operational ones found in documentation from the 90s. The frequency with...