Found in the February 1983 Radio Electronics magazine, this circuit uses a FET and has good gain at the frequencies determined by the components. The FET is any general-purpose FET.
The quadrature oscillator is another type of phase shift oscillator, where each of the three...
The power supply shown in the figure provides output voltages in the range of 1.2 to 25 V with...
The frequency ranges that this receiver can tune in depend only on the coils. For medium waves L1...