This circuit is from American documentation from the 70s. This configuration appears in this section obtained from other sources. The signal is sinusoidal determined in amplitude by D1 and D2.
This circuit was found in a 1966’s American publication. What it does is to receive a pulse and...
This dual circuit was found in an 80s Siliconix documentation. The power source must be...
We found this circuit in a Radio Electronics from the 90s. Transistors admit current equivalents,...