Wednesday, November 9, 2011

8W FM RF amplifier 88-108MHz with BLV10

This is 8W FM RF amplifier for frequency range of 88-108 MHz with no tune broadband) needed to cover all the FM Band. The circuit use BLV10 as the main amplifier component. You need the 2N3866 driver stage to boost properly the BLV10 transitor.

Circuit diagram:

electronic circuit diagram

PCB design:

electronic circuit diagram

This RF amplifier has a 22 dB gain (with driver stage) and provides 8W with a 55% efficiency.

Efficiency of frequency:

electronic circuit diagram

Preview after circuit building:

electronic circuit diagram

About RF Amplifier
An RF power amplifier is a type of electronic amplifier which is utilised to convert a low-power radio-frequency signal into a larger signal of significant power, usually for driving the antenna of a transmitter. It is usually optimized to have high efficiency, high output Power (P1dB) compression, good gain, good return loss on the input and output, and optimum heat dissipation.

The basic applications of the RF power amplifier include driving to another high power source, driving a transmitting antenna, microwave heating, and exciting resonant cavity structures. Among these applications, driving transmitter antennas is most well known.
More explanation about power audio amplifier can be found at
This is a demonstration about 01A RF Amplifier which is build used old tube component to amplify the signal.

Watch the video:

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