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HF amplifiers for ham radio use.
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Most Popular- 600 Watt HF Amplifier
Schematics plans by K9GDT and all infos to build a 600 Watt HF Amplifier. The amplifier uses four Motorola MRF150 50 volt TMOS power FETs configured in push-pull/parallel and biased for class AB linear operation. - 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 - 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 - 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 - Yaesu VL-1000 amplifier
The Yaesu VL-1000 Quadra HF Linear amplifier - 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 - 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 - 100W HF QRO linear amplifier
Based on Motorola MRF454, schematics and component list - 2 kW HF Amplifier Rebuild
Heathkit SB-220 amplifier repaired at W8UM - 5-band RF Power Amplifier
This project uses a widely available IRF510 MOSFET, work on HF 80, 40, 30, 20 and 17 meter bands - 1.5KW GU-43B HF Linear
by PA0FRI, 1.8 - 30 MHz, Input 50 ohm SWR <1.2:1 - I5UXJ home made amplifiers
Infomration schematics and pictures about various hf and vhf QRO linear amplifiers - ON7WJ Amplifier 1000 watt
- SUPERVOX - S 300
- AM CW SSB linear amplifier for 160 80 and 40 meter band
[ Hits: 3118 | Votes: 2 | Rating: 5.50 ]
- 1.5 to 30 Mhz RF Amplifier
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- This high range amplifier is very small [SB200 size] Vacuum variable input and output caps as well input and output switching.
[ Hits: 52411 | Votes: 42 | Rating: 3.70 ]
- 1.5KW GU-43B HF Linear
- by PA0FRI, 1.8 - 30 MHz, Input 50 ohm SWR <1.2:1
[ Hits: 5744 | Votes: 13 | Rating: 5.38 ]
- 10 11 meters RF Power Amplifier
- AM/FM/CW QRP RF Power Amplifier for the HF 10 or 11 meterband (28MHz/27MHz)
[ Hits: 4857 | Votes: 6 | Rating: 5.67 ]
- 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
[ Hits: 11038 | Votes: 11 | Rating: 5.27 ]
- 100W HF QRO linear amplifier
- Based on Motorola MRF454, schematics and component list
[ Hits: 8730 | Votes: 11 | Rating: 4.36 ]
- 10m FM Amplifier
- 100 W output RF amplifier for 10 meter band project by W4NFR
[ Hits: 598 | Votes: 3 | Rating: 5.67 ]
- 11 KW Linear amplifier by I0JX
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- 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
[ Hits: 23762 | Votes: 29 | Rating: 7.87 ]
- 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
[ Hits: 9228 | Votes: 17 | Rating: 3.29 ]
- 160m linear amplifier - pictures
- Pictures of a homemade monoband linear amplifier for 160m band powered by 3 x QB5/1750
[ Hits: 284 | Votes: 2 | Rating: 2.00 ]
- 2 kW HF Amplifier Rebuild
- Heathkit SB-220 amplifier repaired at W8UM
[ Hits: 7311 | Votes: 6 | Rating: 5.17 ]
- 2 x 3-500Z HF Power Amp
- A 2x3-500Z rf power amplifier for 80-10 meters
[ Hits: 4141 | Votes: 7 | Rating: 3.43 ]
- 2 x 4-400A Amplifier Deck
- A Class C Amplifier rebuilt with 4-400A tubes by W7IUV
[ Hits: 2881 | Votes: 3 | Rating: 5.00 ]
- 24 MOSFET Class E RF Amplifier
- This is a 24 MOSFET Class E RF Amplifier, covering the 80 and 160 meter amateur radio bands.
[ Hits: 1584 | Votes: 2 | Rating: 4.50 ]
- 3 x 4-400A project
- An RF amplifier project by W7IUV
[ Hits: 2209 | Votes: 2 | Rating: 10.00 ]
- 3-500Z Amplifier Project
- This article loaded with nice pictures and schematics, describes a 160-10 meter linear amplifier that uses a pair of 3-500Z triode power tubes. It was designed and constructed by William Moneysmith, W4NFR.
The amplifier features fast warm up and 1500-Watt RF output with 100-Watts of drive.
[ Hits: 848 | Votes: 3 | Rating: 9.33 ]
- 4 KW RF Amplifier
- HF power amplifier project powered by GU-78B by SV8JE
[ Hits: 1248 | Votes: 2 | Rating: 10.00 ]
- 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
[ Hits: 12006 | Votes: 19 | Rating: 5.47 ]
- 4-1000A Homebrew HF Amp
- Building an HF power amplifier based on a 4-1000A
[ Hits: 825 | Votes: 3 | Rating: 8.67 ]
- 4-1000A Tube RF Amplifier
- Home Brew a 4-1000A RF power amplifier project by W4NFR
[ Hits: 494 | Votes: 0 | Rating: 0.00 ]
- 40m linear amlifier made by 9A6A
- Pictures of a monoband linear amplifier for 40m band – 2 x QB5/1750 made by 9A6A
[ Hits: 622 | Votes: 1 | Rating: 10.00 ]
- 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
[ Hits: 10927 | Votes: 10 | Rating: 5.80 ]
- 5-band RF Power Amplifier
- This project uses a widely available IRF510 MOSFET, work on HF 80, 40, 30, 20 and 17 meter bands
[ Hits: 6689 | Votes: 4 | Rating: 6.75 ]
- 500 WATT PA by SM0VPO
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- 500W Power Amplifier by Harry Lythall - SM0VPO
[ Hits: 18303 | Votes: 19 | Rating: 5.62 ]
- 60 W Linear Amplifier Circuit
- The 60 Watt linear amplifier is simple all solid state circuit using power mosfet IRF840.
[ Hits: 1970 | Votes: 3 | Rating: 3.67 ]
- 600 Watt HF Amplifier
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- Schematics plans by K9GDT and all infos to build a 600 Watt HF Amplifier.
The amplifier uses four Motorola MRF150 50 volt TMOS power FETs configured in push-pull/parallel and biased for class AB linear operation.
[ Hits: 68740 | Votes: 120 | Rating: 4.44 ]
- 7 Watt HF Amplifier
- An RF power amplifier, providing 7 Watts output in HF bands, schematic by ON6MU
[ Hits: 3162 | Votes: 2 | Rating: 5.50 ]
- 70W SSB Power Amplifier For FT-817 or KX3
- DIY kits a 70W SSB linear Power Amplifier for YAESU FT-817 KX3 running HF 80m-10m bands
[ Hits: 1155 | Votes: 7 | Rating: 7.15 ]
- 80 m Hexfet power amplifier
- 80m hexfet power amplifier by W7ZOI
[ Hits: 3496 | Votes: 3 | Rating: 7.67 ]
- 80-10m Linear Amplifier
- High-power 3-500 HF linear amplifier by Don Pinnock G3HVA
[ Hits: 2794 | Votes: 2 | Rating: 9.00 ]
- 811 Linear Amplifier project
- A lower power desktop linear with integrated 120vac power supply. This, very compact, dual 811 version will deliver about 300 watts output. Covers all bands including WARC bands.
[ Hits: 1376 | Votes: 2 | Rating: 10.00 ]
- A 20m monoband Power Amp
- The 20m monoband 4-1000 amplifier, by Jelmer (pa5r), Herman (pa0ten) and Frans (pa5ca)
[ Hits: 2712 | Votes: 2 | Rating: 9.50 ]
- 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: 1740 | Votes: 2 | Rating: 3.00 ]
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