- SUPERVOX - S 300
- AM CW SSB linear amplifier for 160 80 and 40 meter band
[ Hits: 3256 | Votes: 2 | Rating: 5.5 ]
- 1.5 to 30 Mhz RF Amplifier
updated
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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: 53783 | Votes: 43 | Rating: 3.82 ]
- 10 11 meters RF Power Amplifier
- AM/FM/CW QRP RF Power Amplifier for the HF 10 or 11 meterband (28MHz/27MHz)
[ Hits: 5130 | 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: 11405 | Votes: 12 | Rating: 5.25 ]
- 100W HF QRO linear amplifier
updated
- Based on Motorola MRF454, schematics and component list
[ Hits: 9155 | Votes: 12 | Rating: 4.83 ]
- 10m FM Amplifier
- 100 W output RF amplifier for 10 meter band project by W4NFR
[ Hits: 774 | Votes: 3 | Rating: 5.67 ]
- 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
[ Hits: 24574 | Votes: 33 | Rating: 7.86 ]
- 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: 9852 | Votes: 18 | Rating: 3.38 ]
- 160m linear amplifier - pictures
- Pictures of a homemade monoband linear amplifier for 160m band powered by 3 x QB5/1750
[ Hits: 517 | Votes: 2 | Rating: 2 ]
- 2 kW HF Amplifier Rebuild
- Heathkit SB-220 amplifier repaired at W8UM
[ Hits: 7626 | Votes: 6 | Rating: 5.17 ]
- 2 x 3-500Z HF Power Amp
- A 2x3-500Z rf power amplifier for 80-10 meters
[ Hits: 4304 | Votes: 8 | Rating: 3.13 ]
- 2 x 4-400A Amplifier Deck
- A Class C Amplifier rebuilt with 4-400A tubes by W7IUV
[ Hits: 3076 | Votes: 3 | Rating: 5 ]
- 20 W HF Power Amplifier
- A HF power amplifier with a push-pull of AFT09MS015N. The (small-signal) gain of the amplifier is around 26 dB in the lower HF band and goes down to about 24 dB on the higher end and still around 21 dB at 50 MHz. Its input matching is relatively good at the lower HF and degrades above 10 MHz.
[ Hits: 143 | Votes: 0 | Rating: 0 ]
- 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: 1790 | Votes: 2 | Rating: 4.5 ]
- 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: 1068 | Votes: 4 | Rating: 9.5 ]
- 4 KW RF Amplifier
- HF power amplifier project powered by GU-78B by SV8JE
[ Hits: 1565 | Votes: 2 | Rating: 10 ]
- 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: 12371 | Votes: 19 | Rating: 5.47 ]
- 4-1000A Tube RF Amplifier
- Home Brew a 4-1000A RF power amplifier project by W4NFR
[ Hits: 680 | Votes: 0 | Rating: 0 ]
- 40m linear amlifier made by 9A6A
- Pictures of a monoband linear amplifier for 40m band - 2 x QB5/1750 made by 9A6A
[ Hits: 792 | Votes: 1 | Rating: 10 ]
- 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: 11377 | Votes: 12 | Rating: 6 ]
- 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: 6941 | Votes: 4 | Rating: 6.75 ]
- 500 WATT PA by SM0VPO
- 500W Power Amplifier by Harry Lythall - SM0VPO
[ Hits: 18846 | 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: 2200 | 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: 70303 | Votes: 127 | Rating: 4.45 ]
- 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: 776 | Votes: 1 | Rating: 10 ]
- 7 Watt HF Amplifier
- An RF power amplifier, providing 7 Watts output in HF bands, schematic by ON6MU
[ Hits: 3327 | Votes: 2 | Rating: 5.5 ]
- 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: 1552 | Votes: 7 | Rating: 7.15 ]
- 80 m Hexfet power amplifier
- 80m hexfet power amplifier by W7ZOI
[ Hits: 3695 | Votes: 3 | Rating: 7.67 ]
- 80-10m Linear Amplifier
- High-power 3-500 HF linear amplifier by Don Pinnock G3HVA
[ Hits: 2963 | Votes: 2 | Rating: 9 ]
- 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: 1620 | Votes: 2 | Rating: 10 ]
- A 20m monoband Power Amp
- The 20m monoband 4-1000 amplifier, by Jelmer (pa5r), Herman (pa0ten) and Frans (pa5ca)
[ Hits: 2882 | Votes: 2 | Rating: 9.5 ]
- 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: 1964 | Votes: 3 | Rating: 5.33 ]
- A Compact 600W Broadband HF Power Amplifier
- A 600W 1.8 MHz to 54 MHz power linear amplifier made using rugged MRF300 transistors featuring output power between 580W and 750W depending on band, power supply: 48V, 18A typical, 20A max
[ Hits: 587 | Votes: 6 | Rating: 7.33 ]
- A LF power amplifier
- A Low Frequency (LF) RF Power Amplifier by VK5BR it operates in a linear mode and can handle CW, AM and SSB.
[ Hits: 3300 | Votes: 2 | Rating: 1.5 ]
- A low cost 600 watt ultra-linear amplifier
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- 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
[ Hits: 32008 | Votes: 27 | Rating: 6.67 ]
- A simple 50W RF Power Amplifier
- A simple RF power amplifier initially designed for 40 meter band can work on 10 15 20 40 80 meters
[ Hits: 1611 | Votes: 1 | Rating: 8 ]
- A600 Power Amplifier Project
- This is a power amplifier project for a RF 600W 1.8 MHz to 70 MHz linear amplifier including a Low Pass Filter. Projects includes schematics, pictures, PCD design, fans details, note on PA ferrite chokes and assembling instructions
[ Hits: 94 | Votes: 0 | Rating: 0 ]
- Adding 160M to HF amplifiers
- updated original manuscript, article published in January 1989 QST by Richard L. Measures, AG6K, April 1988
[ Hits: 3228 | Votes: 2 | Rating: 10 ]
- AL80B Mod
- Ameritron QSK 5 PC mod for AL80B
[ Hits: 813 | Votes: 0 | Rating: 0 ]
- AL811 trouble shooting
- Ameritron AL80B AL811H AL572 Amplifier Trouble Shooting. Tubes replacement, resistor changes.
[ Hits: 1257 | Votes: 4 | Rating: 7.5 ]
- Alpha 87a Amplifier Fault 1
- Alpha 87A Amplifier Fault 1 and the downlevel amplifier
[ Hits: 177 | Votes: 0 | Rating: 0 ]
- Alpha Amplifier Upgrades
- Alpha 77D,DX,SX, Alpha 76, Alpha 78 and 374 repair service and upgrade kits
[ Hits: 2686 | Votes: 6 | Rating: 10 ]
- Ameritron AL-1200 to gs35b Conversion
- The Ameritron AL-1200 Amplifier is in current production. In its factory configuration it uses a single 3CX1200A7 (triode) tube, grounded grid configuration. Re-tubing the AL-1200 with a GS-35b with success.
[ Hits: 2648 | Votes: 2 | Rating: 4 ]
- Ameritron AL-80A modification
- W7TDC modification of the Ameritron AL-80A power amplifier
[ Hits: 11021 | Votes: 19 | Rating: 6.52 ]
- Amplifier for 15 and 17 meter band
- The two linear amplifiers are ment for use with QRP SSB/CW/FM/AM transmitters on the amateur bands 15 and 17 meters can be powered from a 12 volt DC supply by ON6MU
[ Hits: 1606 | Votes: 0 | Rating: 0 ]
- Broadband Power Amplifier
- A MRF141G 3-175MHz Broadband Power Amplifier DL4MEA 02/1998
[ Hits: 1944 | Votes: 0 | Rating: 0 ]
- 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.
[ Hits: 22687 | Votes: 8 | Rating: 6.38 ]
- Converting an HT-41 Hallicrafters Amplifier
- An amplifier made using an old HT-41 Hallicrafters Amplifier and adding the 160 meters band By W4NFR
[ Hits: 692 | Votes: 2 | Rating: 8 ]
- Dentron DTR-2000L restoration
- The Dentron DTR2000L is an HF amplifier from the 1980 era. It uses a single 8877/3CX1500A7 tube to produce about a kilowatt of RF output. In this page NR7N includes info on operation, restoration and mods.
[ Hits: 690 | Votes: 4 | Rating: 9.75 ]
- Dentron GLA-1000 Conversion
- Dentron GLA-1000 Conversion, modification with 4 × PL/EL-519 or 2 × GI-7B
[ Hits: 1576 | Votes: 2 | Rating: 4.5 ]
- Dentron MLA-2500 Retrofit to the GI-7B
- How retrofit the MLA-2500 with the Russian GI-7B tube to replace the 8875's which are both expensive and hard to come by tubes by W4EMF
[ Hits: 1862 | Votes: 1 | Rating: 5 ]
- Easy Kilowatt Linear Amplifier
- Rf amplifier for hf ham radio service - includes easy to understand designs and penny-cheap construction details
[ Hits: 22645 | Votes: 20 | Rating: 5.4 ]
- FC-80B Linear Amplifier - An AL-80B Copy
- A Home brew 3-500Z HF Linear Amplifier heavily based on the Ameritron AL-80B
[ Hits: 222 | Votes: 0 | Rating: 0 ]
- FT817 Amp Project
- How to build a lightweight amplifier that can be backpacked around.
[ Hits: 1258 | Votes: 1 | Rating: 1 ]
- G3YXM 500 W PA
- 40-80-160 meter band linear amplifier
[ Hits: 3620 | Votes: 3 | Rating: 7 ]
- GS-35B Tube Amp
- 160-10 Meters 1500 Watt Amp - W4NFR
[ Hits: 568 | Votes: 2 | Rating: 9.5 ]
- Heathkit SB-220
- The Heathkit SB-220, two 3-500Z, amplifier made a notable impact in the world of amateur radio when it debuted in 1975.
Resources and modifications
[ Hits: 3819 | Votes: 2 | Rating: 5.5 ]
- Henry 2KD-5 Grade UP Modification
[ Hits: 2540 | Votes: 9 | Rating: 7.77 ]
- HF 1 KW Home Made Amplifier
- Topic regarding a new 1KW HF power amplifier with 2x GI7B
[ Hits: 1731 | Votes: 3 | Rating: 4 ]
- HF Amp Project
- This is the HF Packer amplifier project. KG9E was able to build this amp and put it on the air in about 25 hours.
[ Hits: 956 | Votes: 3 | Rating: 7 ]
- HF Power Amplifier by CT1FMS
- An RF power Amplifier for HF bands with 3 GI-7B tubes by CT1FMS
[ Hits: 1657 | Votes: 4 | Rating: 6.25 ]
- HF power amplifier using GI7B
- Gi7b is tube designed for microwaves but working good as HF amplifier. Idea is to build cheap, reliable HF amplifier covering 160 meters band.
[ Hits: 4041 | Votes: 12 | Rating: 4.92 ]
- HF QRP Lin Ampl
- HF QRP Linear Amplifier with 2x 2SC2166 + 2x 2SC1969 Push Pull Transistors (13.8V)
[ Hits: 4591 | Votes: 6 | Rating: 4.17 ]
- HF Tetrode Linear Amplifiers
- I4FAF etrode Tube Linear Amplifier experience
[ Hits: 3579 | Votes: 1 | Rating: 10 ]
- Home Made 2.4 kW HF Amp
- A Solid State HF Amplifier with 16 mrf150 featuring 2.4 kW 1.8 MHz - 30 MHz
[ Hits: 1589 | Votes: 3 | Rating: 7.67 ]
- Home Made 813 Amp
- An home made RF Amplifier project that allows near full power output from 813 tubes
[ Hits: 1433 | Votes: 2 | Rating: 6 ]
- Homebrew HF Amp with 3CX3000F7
- Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC.
The amp design was for 160 80 40 and 20 meters
[ Hits: 3273 | Votes: 9 | Rating: 6.33 ]
- Homebrew 3CX3000A7 Amplifier
- A picture gallery of a home-brew RF Power amplifier made with 3CX3000
[ Hits: 87 | Votes: 0 | Rating: 0 ]
- Homebrew 813 Linear Amplifier
- 813 Linear Amplifier Project includes many schematics, drawind and assembling construction
[ Hits: 17457 | Votes: 14 | Rating: 8.13 ]
- Homebrew a HF Power Amplifier
- HF power amplifier project by YB0AH
[ Hits: 3018 | Votes: 0 | Rating: 0 ]
- How modify a CB linear to use in HF band
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- how to modify a Cb linear amplifier to use in HAm HF band
[ Hits: 34910 | Votes: 105 | Rating: 6.43 ]
- I5UXJ home made amplifiers
- Infomration schematics and pictures about various hf and vhf QRO linear amplifiers
[ Hits: 5390 | Votes: 7 | Rating: 4.86 ]
- IK5MEN HF amplifier 10-160m.
- Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W.
[ Hits: 4987 | Votes: 6 | Rating: 3.5 ]
- Improving The Heathkit SB-200
- A QST article, hints and kinks on improving the SB-200 amplifier
[ Hits: 2742 | Votes: 1 | Rating: 1 ]
- K0GKD Solid State amplifier
- High Power Solid State 600 Watts Output Motorola MRF 150 FETs
[ Hits: 4878 | Votes: 15 | Rating: 7.34 ]
- KENWOOD TL-922 Modifications
- Allow 9 bands and 1300 Watt output on the TL-922 amplifier with this document by PA0FRI
[ Hits: 2844 | Votes: 9 | Rating: 3.89 ]
- L4b 160m Mod
- L4B by Drake amplifier mod
[ Hits: 593 | Votes: 1 | Rating: 5 ]
- LA7MI 40W RF Amplifier for 80m
- 40W Linear Power amplifier with FETs for 80m
Some notes about saturation in ferrite- and iron-cores.
Written by LA7MI Stein Torp, N-5005 Bergen
[ Hits: 3023 | Votes: 2 | Rating: 1.5 ]
- Modifications to the Ameritron AL-1200 Amplifier
- This page describes two modifications W8WWV made to his AL-1200 amplifier. The mods were obtained from Ameritron, so they are official.
[ Hits: 3027 | Votes: 4 | Rating: 2.75 ]
- MOSFET amplifier for 80 mt.
- Picture index of 150W MOSFET linear amplifier for 80m 1996, includes photos and schematics
[ Hits: 17871 | Votes: 24 | Rating: 4.96 ]
- N1IBC Eimac 4CX1500B HF Power Amplifier
- 1500 Watt HF power amplifier
[ Hits: 5020 | Votes: 6 | Rating: 3.83 ]
- N4ATS.com
- N4ATS - Devoted to the Yaesu FL-7000 Amplifier. I have been rebuilding, repairing, and applying modifications to the Yaesu FL-7000 amplifier for 15 years. Over 200 units completed and counting!
[ Hits: 2232 | Votes: 3 | Rating: 9.33 ]
- N4IP HF and 6 Meters amplifier
- A solid state amplifier for HF and 6 meters band by N4IP
[ Hits: 10678 | Votes: 5 | Rating: 9 ]
- Power Amplifier using 4CX1500B
- 4CX1500B RF amplifier schematic, working 1.8 MHz to 29.7 MHz
[ Hits: 914 | Votes: 2 | Rating: 8.5 ]
- QRP Amplifier
- HF Bands QRP linear amplifier by SM0VPO
[ Hits: 15448 | Votes: 13 | Rating: 7.85 ]
- Reparing a Heathkit SB-101
- A document describing the reparing and restoration of an old Heathkit SB-101 power amplifier
[ Hits: 320 | Votes: 0 | Rating: 0 ]
- Russian amplifier for 160 and 6 meters
- by Tony I0JX
[ Hits: 4694 | Votes: 2 | Rating: 9 ]
- SB-200 Amplifier Rebuild Notes
- Robert Norgards KL7FM's, notes on upgrading the Heathkit SB-200
[ Hits: 1742 | Votes: 2 | Rating: 6 ]
- 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: 268 | Votes: 0 | Rating: 0 ]
- Ten-Tec Centurion Mod
- Ten Tec Centurion Mo-Mods by Bob Hutchinson, N5CNN
[ Hits: 490 | Votes: 0 | Rating: 0 ]
- The G2DAF Linear Amplifier
- Scans of original G2DAF articles on his HF linear amplifier using QY3-125 tube
[ Hits: 1800 | Votes: 5 | Rating: 3 ]
- The Two Module, 400 Watt RF Amplifier 80 Meters
- This Class E RF amplifier will deliver up to 400 watts of RF output
[ Hits: 782 | Votes: 0 | Rating: 0 ]
- 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: 2865 | Votes: 5 | Rating: 4.2 ]
- VE6FI 4-1000a amplifier
- 15-160 meters HF power amplifier
[ Hits: 3273 | Votes: 4 | Rating: 9.25 ]
- W2DTC Homebew RF Amplifier
- Grounded grid, Cathode driven, 3CX3000F7 Triodes
[ Hits: 2135 | Votes: 3 | Rating: 6.33 ]
- WA2EBY HF amplifier
- Revisiting the WA2EBY broadband HF amplifier
[ Hits: 2589 | Votes: 2 | Rating: 7 ]
- Yaesu VL-1000 amplifier
- The Yaesu VL-1000 Quadra HF Linear amplifier
[ Hits: 11267 | Votes: 5 | Rating: 6.2 ]
- YC156 Conversion
- RF Amplifier project modified the original chassis to use a 4CX1000A instead of a YC156 triode
[ Hits: 1288 | Votes: 1 | Rating: 6 ]
- Yet Another Amp for the 817
- An HF 10-20m portable RF power amplifier based on the RD16HHF1 FETS giving 25 W.
[ Hits: 590 | Votes: 0 | Rating: 0 ]
