fet amplifier

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Yaesu FT100D VHF/UHF Faulty RF Amplifier Repair - Replacing the Yaesu FT100D SRF7043 VHF/UHF RF MOSFET Power Amplifier
[ Hits: 625 | Votes: 2 | Rating: 6.5 ]

60 W Linear Amplifier Circuit - The 60 Watt linear amplifier is simple all solid state circuit using power mosfet IRF840.
[ Hits: 2209 | Votes: 3 | Rating: 3.67 ]
A 600 Watt homebrew Solid State Amplifier - A solid state linear based on EB104 Motorola Engineering Bulletin by Helge Granberg. It uses 4 MRF150 FETs in push-pull parallel to acheive 600 Watts from about 6 Watts drive
[ Hits: 1979 | Votes: 3 | Rating: 5.33 ]
Yet Another Amp for the 817 - An HF 10-20m portable RF power amplifier based on the RD16HHF1 FETS giving 25 W.
[ Hits: 599 | Votes: 0 | Rating: 0 ]
Stone Creek Special 600 HF RF Amplifier - This is a Solid State Amplifier Project. It uses 4 MRF150 MosFet Power Transistors. The Power Supply Voltage is 50 VDC at 21.5 Amp. The max power available is 1,075 Watts. The Efficiency is about 65% +/- and runs Class AB Solid State.
[ Hits: 270 | Votes: 0 | Rating: 0 ]
600W LDMOS Power Amplifier - A comeplete home made 600W LDMOS RF power amplifier. Settings can be made on a 7-inch touch screen, and on this screen you can see a lot of useful information during operation, such as output power, temperature, SWR, and so on. The power amplifier includes 2 MRF300 LDMOS FETs and several built-in sensors. The amplifier also contains several types of protection functions like too high current, too high swr, too high temperature, etc.
[ Hits: 884 | Votes: 1 | Rating: 10 ]

Homebrewing HF Amplifiers - Thoughts build a solid state legal-limit amplifier for amateur radio use.
[ Hits: 357 | Votes: 0 | Rating: 0 ]
High efficiency, legal limit, solid state linear HF amplifiers - Not a project yet, but very theoretical thoughts about very practical amplifiers!
[ Hits: 203 | Votes: 2 | Rating: 10 ]

70 MHz Mosfet Amplifier - A 160W linear amplifier for 4 meters band based on GI0GDP
[ Hits: 663 | Votes: 2 | Rating: 6.5 ]
70 MHz 300 W Power Amplifier - This PA has been designed by Sergey EX8MLE and uses three Mitsubishi RD100HHF1 FETs, Frequency Range 70 to 72 MHz
[ Hits: 109 | Votes: 1 | Rating: 10 ]

Design Guidelines for JFET Audio Preamplifier Circuits - Design Guidelines for JFET Audio Preamplifier Circuits By Mike Martell N1HFX
[ Hits: 645 | Votes: 4 | Rating: 1 ]

U310 FET preamplifier - Extremely reliable FET preamplifier can handle several watts directly into either the input or the output without failure
[ Hits: 1050 | Votes: 2 | Rating: 9 ]
432MHz Low Noise Preamp - An easy to build with a cheap HEMT FET Transistor Low noise preamplifier with FHX35LG based on JH0WJF design
[ Hits: 764 | Votes: 1 | Rating: 10 ]
A JFET preamplifer for 50 MHz - The circuit is simple, designed with a low component count and an inherent simplicity in order to keep the cost of building the preamplifier low, and to assure low noise operation.
[ Hits: 98 | Votes: 0 | Rating: 0 ]