Linear Amplifier | Electronic Project Circuits

Posts Tagged ‘linear amplifier’

HF 300KHz-30Mhz Linear Amplifier

This is a rather unusual QRP Power Amplifier design, with a wide frequency response; within three dB’s from 300KHz to 30MHz. Overall gain is in the region of 16dB and the final output power may be well over four watts. This PA will deliver 4 watts continuously (with a suitable heatsink), and may be loaded into a short-circuit or open circuit without causing damage. This makes it almost the ideal PA for outdoor/field use. Above is the full circuit diagram of the RFPA and the coil winding pattern. This PA may be used for for SSB, [...]
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http://w1.859.telia.com/~u85920178/tx/linear.htm

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Categories: Power Amplifier, RF-Radio Frequency Tags: HF amplifier, linear amplifier, RF amplifier

60 WATTS LINEAR AMPLIFIER with IRF840

The 60 Watt linear amplifier is simple all solid state circuit using power mosfet IRF840. The IRF series of power transistors are available in various voltage and power ratings. A single IRF840 can handle maximum power output of 125 watts. Since these transistors are used in inverters and smps they are easily available for around Rs: 20/-.

Read More Detial in Source:http://www.flashwebhost.com/circuit/60_watts_rf_amplifier.php
Thank you.