This intermediate frequency amplifier step using 2 junction FETs has a gain of 20 dB. The pass band is 4 MHz. FETs are for general use, with several types that serve in this circuit as BF245.
The gated oscillator shown here turns on when a “1" Iogic Ievel is applied to the input. The...
Found in a 90’s Radio Electronics, this circuit uses a component from the time, difficult to find today....
In the figure we have a circuit where two 555 operating one as astable and the other as monostable...