Antenna Rf Amplifier Circuit. Rf amplifier technical specifications. In an rf amplifier it is necessary to supply dc plate voltage to the tube about 350 volts in this case and at the same time extract the amplified rf that appears at the plate of the tube.
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In order that the rf amplifier have high selectivity to rf signals of the particular frequency to which the receiver is designed to respond it is provided with resonant circuits which are tuned to such frequency. See the diagram below high gain active antenna circuit. Until most people are unable to find enough space to install the antenna.
See the diagram below high gain active antenna circuit.
3v two transistor fm transmitter circuit. The rf signal is directly attached from the q1 s source terminal to the base of q2. Minimum inupt of the circuit is 100mw fit the circut in metal case and apply 12 volt to the circuit. Connect the rf preampliļ¬er s ground to your radio s ground.
