HF Amplifiers

HF amplifiers for ham radio use.

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600 Watt HF Amplifier - Schematics plans by K9GDT and all infos to build a 600 Watt HF Amplifier
1.5 to 30 Mhz RF Amplifier - This high range amplifier is very small [SB200 size] Vacuum variable input and output caps as well input and output switching.
How modify a CB linear to use in HF band - how to modify a Cb linear amplifier to use in HAm HF band
A low cost 600 watt ultra-linear amplifier - This compact little amplifier is the brain-child of Pat Murdoch, ZL1AXB, in Auckland, New Zealand. It is only 11" wide, 4" high, and 9" deep. Operates for 40, 20, 17, 15, 12, and 10m
SP5GJN - HF Power Amplifiers - HF home meade power amplifiers by SP5GJN
11 KW Linear amplifier by I0JX - Use 4CX10000D / 8171, RF output power of 11 KW in key-down carrier on all bands. Power was measured with a Bird 4712 wattmeter and a 25 KW slug
Build an HF Linear Amp - Hombrew project to build an HF linear amplifier whose output is 210W for 16W of drive on 80M and max output is 300W.
Easy Kilowatt Linear Amplifier - Rf amplifier for hf ham radio service - includes easy to understand designs and penny-cheap construction details
500 WATT PA by SM0VPO - 500W Power Amplifier by Harry Lythall - SM0VPO
MOSFET amplifier for 80 mt. - Picture index of 150W MOSFET linear amplifier for 80m 1996, includes photos and schematics
Homebrew 813 Linear Amplifier - 813 Linear Amplifier Project includes many schematics, drawind and assembling construction
G3YXM 500 W solid state amplifier - HF 500 Watt power amplifier schematics by G3YXM
QRP Amplifier - HF Bands QRP linear amplifier by SM0VPO
4 x 813's RF Amplifier Deck - This amp project was an exercise in cheap! The design criteria was to use only components in the JUNQUE BOX
Yaesu VL-1000 amplifier - The Yaesu VL-1000 Quadra HF Linear amplifier
10 W Linear Amplifier - This article describes a 10 watt linear amplifier that is capable of delivering over 15 watts into 50 ohms and uses cheap plastic transistors that are used in CB equipment. by Harry Lythall - SM0VPO
4CX1500 - This is a 4CX1500B grid driven amplifier that is built like a tank. The unit is considerably over designed as can be seen in the pictures documenting the construction
Ameritron AL-80A modification - W7TDC modification of the Ameritron AL-80A power amplifier
N4IP HF and 6 Meters amplifier - A solid state amplifier for HF and 6 meters band by N4IP
100W HF QRO linear amplifier - Based on Motorola MRF454, schematics and component list
1500 Watt Solid State HF Amplifier - This is a project to develop an Open Source reference design for a 1500 watt solid state linear amplifier for 10 through 160 meters by K6IF
2 kW HF Amplifier Rebuild - Heathkit SB-220 amplifier repaired at W8UM

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The G2DAF Linear Amplifier - Scans of original G2DAF articles on his HF linear amplifier using QY3-125 tube
[Hits: 1151 | Votes: 2 | Rate: 1.00]
The IC-4KL HF Amplifier - The IC-4KL HF solid-state 1kW amplifier, product review and maintenance by KK5DR
[Hits: 903 | Votes: 0 | Rate: 0.00]
The Two Module, 400 Watt RF Amplifier 80 Meters - This Class E RF amplifier will deliver up to 400 watts of RF output
[Hits: 391 | Votes: 0 | Rate: 0.00]
Using the Heath SB-200 Linear on Six Meters - Improvements to Using the Heath SB-200 Linear on Six Meters by Ron Klimas, WZ1V
[Hits: 2260 | Votes: 5 | Rate: 4.20]
VE6FI 4-1000a amplifier - 15-160 meters HF power amplifier
[Hits: 2971 | Votes: 3 | Rate: 9.00]
W2DTC Homebew RF Amplifier - Grounded grid, Cathode driven, 3CX3000F7 Triodes
[Hits: 1749 | Votes: 3 | Rate: 6.33]
WA2EBY HF amplifier - Revisiting the WA2EBY broadband HF amplifier
[Hits: 1843 | Votes: 2 | Rate: 7.00]
WA2EBY Mosfet Amplifier - A Broadtband HF Amplifier Using Low-Cost Power MOSFETs
[Hits: 2878 | Votes: 2 | Rate: 5.00]
Yaesu VL-1000 amplifier - The Yaesu VL-1000 Quadra HF Linear amplifier
[Hits: 10150 | Votes: 5 | Rate: 6.20]
YC156 Conversion - RF Amplifier project modified the original chassis to use a 4CX1000A instead of a YC156 triode
[Hits: 1038 | Votes: 1 | Rate: 6.00]
YU1AW HF Power Amps - 2xGU84B and 1xGS31B hf power amplifier plans
[Hits: 4078 | Votes: 7 | Rate: 8.57]

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HF Amplifiers

HF amplifiers for ham radio use.

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