The frequency of this circuit, for the indicated components, is 1 kHz. Other operational amplifiers can be used, and the power supply must be symmetrical.
With this circuit it is possible to select transistors and their compliant test. Or circuit...
This circuit uses a JFET at the input to increase the impedance. The circuit has a gain voltage...
This receiver was found in an article in Electronics Now magazine in March 1994. The coils are...