Using L144 operational, this circuit applies to other equivalent operational. The circuit is from a documentation two years 90. The power supply must be symmetrical.
This three-transistor amplifier uses a JFET at the input to increase the input impedance. The...
We found this simple mixer in a 90s Radio Electronics. The used FETs are still common. The inputs...
This circuit was published in an Italian magazine Radio Elettronica in February 1976. The...