This is an improved circuit from the earlier version also found in the April 1972 Radio Electronics magazine. The power transistors must be provided with heat sinks.
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...