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HF amplifiers for ham radio use.
- 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: 22146 | Votes: 8 | Rating: 6.38 ]
- COLLINS 30L-1 HF Linear Amplifier
- The Collins 30L-1 Linear Amplifier has 1000 watts PEP power input on SSB and 1000 watts average on CW on all bands. It can be driven by the Collins 32S-3 Transmitter Collins KWM-2 or KWM-1 Transceiver, or most 70-100 watt exciters.
[ Hits: 2919 | Votes: 1 | Rating: 8.00 ]
- 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: 492 | Votes: 1 | Rating: 7.00 ]
- Dentron Clipperton L linear Modification for 160m
- Modifying Dentron Clipperton L linear for better Top Band operation
[ Hits: 226 | Votes: 0 | Rating: 0.00 ]
- 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: 159 | Votes: 2 | Rating: 9.50 ]
- Dentron GLA-1000 Conversion
- Dentron GLA-1000 Conversion, modification with 4 × PL/EL-519 or 2 × GI-7B
[ Hits: 1355 | Votes: 1 | Rating: 1.00 ]
- 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: 1638 | Votes: 1 | Rating: 5.00 ]
- Easy Kilowatt Linear Amplifier
- Rf amplifier for hf ham radio service - includes easy to understand designs and penny-cheap construction details
[ Hits: 21782 | Votes: 17 | Rating: 5.53 ]
- FT817 Amp Project
- How to build a lightweight amplifier that can be backpacked around.
[ Hits: 517 | Votes: 0 | Rating: 0.00 ]
- G3YXM 500 W solid state amplifier
- HF 500 Watt power amplifier schematics by G3YXM
[ Hits: 16275 | Votes: 16 | Rating: 8.38 ]
- G3YXM 500 W PA
- 40-80-160 meter band linear amplifier
[ Hits: 3433 | Votes: 3 | Rating: 7.00 ]
- Granta Contest Group - HF amplifier
- The Granta Contest Group was founded in 1997 by Mark G4AXX, Colin G4CWH, Simon G4EAG, Andy G4KNO. The Group gets it's name from the River Granta (or Cam), which passes through Cambridgeshire and Essex.
Using is a 160-10m "desktop kilowatt" linear amplifier using an Eimac 4CX1000A tetrode
[ Hits: 1797 | Votes: 2 | Rating: 10.00 ]
- Grounded Grid Amplifier
- Picture of a power amplifier, made using of GI-7B triodes by Bob Briggs, VK3ZL
[ Hits: 2070 | Votes: 1 | Rating: 2.00 ]
- GS-35b HF Power Amplifier
- The amplifier described here is an update of the High Power linear amplifier described in the July, 1995 issue of the "Radiolubitel. KW i UKW" magazine in Belarus. In English, this is "Radio Amateur. HF and VHF". by Gary Podgorny, EW1MM
[ Hits: 2284 | Votes: 1 | Rating: 6.00 ]
- GS-35B Tube Amp
- 160-10 Meters 1500 Watt Amp - W4NFR
[ Hits: 387 | Votes: 2 | Rating: 9.50 ]
- Harris linear amplifiers mods
- Harris linear amplifiers RF-353 and RF-355, full automatic amplifiers, 1.6 to 30 MHz
How to use them without the Harris transceiver RT-1446 by F1FRV
[ Hits: 1775 | Votes: 23 | Rating: 9.44 ]
- Heathkit SB-200 Modification
- Tuned input circuit modification by Tom Boza - NE7X
[ Hits: 3324 | Votes: 13 | Rating: 6.69 ]
- 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: 3509 | Votes: 1 | Rating: 1.00 ]
- Heathkit SB-220 and SB-221 essential mod
- Modifications to avoid damage when 3-500Z tubes fail.
[ Hits: 3920 | Votes: 10 | Rating: 5.20 ]
- Henry 2KD-5 Grade UP Modification
[ Hits: 2210 | Votes: 8 | Rating: 7.62 ]
- 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: 800 | Votes: 2 | Rating: 5.50 ]
- HF Packer- Amp Project
- 3rd Generation HF Packer-Amp home construction project
[ Hits: 1325 | Votes: 0 | Rating: 0.00 ]
- HF Power Amplifier by CT1FMS
- An RF power Amplifier for HF bands with 3 GI-7B tubes by CT1FMS
[ Hits: 1425 | Votes: 3 | Rating: 5.00 ]
- 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: 3541 | Votes: 9 | Rating: 4.33 ]
- HF QRP Lin Ampl
- HF QRP Linear Amplifier with 2x 2SC2166 + 2x 2SC1969 Push Pull Transistors (13.8V)
[ Hits: 4364 | Votes: 6 | Rating: 4.17 ]
- HF Tetrode Linear Amplifiers
- I4FAF etrode Tube Linear Amplifier experience
[ Hits: 3365 | Votes: 1 | Rating: 10.00 ]
- High Power Solid State 600 Watts Amp
- A power amplifier project by K0GKD based on Motorola MRF 150 FETs. This RF amplifier is capable of 600 Watts output include pictures, schematics and link to videos.
[ Hits: 1013 | Votes: 1 | Rating: 9.00 ]
- Hillar's Amp BTI LK-2000 Amplifier to gs35b
- The BTI LK-2000 was originally a 3-1000z based amplifier, converted to a GS-35b.
[ Hits: 1819 | Votes: 3 | Rating: 5.33 ]
- 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: 867 | Votes: 0 | Rating: 0.00 ]
- Home Made 813 Amp
- An home made RF Amplifier project that allows near full power output from 813 tubes
[ Hits: 1159 | Votes: 2 | Rating: 6.00 ]
- 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: 3001 | Votes: 8 | Rating: 5.87 ]
- Homebrew 813 Linear Amplifier
- 813 Linear Amplifier Project includes many schematics, drawind and assembling construction
[ Hits: 16529 | Votes: 13 | Rating: 7.99 ]
- Homebrew a HF Power Amplifier
- HF power amplifier project by YB0AH
[ Hits: 2770 | Votes: 0 | Rating: 0.00 ]
- Homebrewing a tube-type HF amp.
- This article discuss the use and construction of a grounded-grid, triode type HF amplifiers
[ Hits: 1731 | Votes: 0 | Rating: 0.00 ]
- How modify a CB linear to use in HF band
- how to modify a Cb linear amplifier to use in HAm HF band
[ Hits: 33113 | Votes: 102 | Rating: 6.54 ]
- I5UXJ home made amplifiers
- Infomration schematics and pictures about various hf and vhf QRO linear amplifiers
[ Hits: 4917 | Votes: 6 | Rating: 5.50 ]
- 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: 4701 | Votes: 6 | Rating: 3.50 ]
- Improving Heathkit SB-220
- Circuit Improvements for the Heath SB-220 Amplifier
[ Hits: 2358 | Votes: 6 | Rating: 9.83 ]
- Improving The Heathkit SB-200
- A QST article, hints and kinks on improving the SB-200 amplifier
[ Hits: 2382 | Votes: 1 | Rating: 1.00 ]
- JA3MHV Amplifiers
- 4CX1000A x2 AB1GG Power Amplifier, 21MHz 15W and 3.5/7MHz 20W SSB Transceiver by JA3MHV, 50/144/435MHz 80W Linear Amplifier
[ Hits: 2542 | Votes: 2 | Rating: 10.00 ]
- K0GKD Solid State amplifier
- High Power Solid State 600 Watts Output Motorola MRF 150 FETs
[ Hits: 4648 | Votes: 14 | Rating: 7.79 ]
- KA5ROW's 922-A mods
- My Shack, Cavanal Hill Worlds Highest hill
and a 10 Meter mod for Kenwood 922-A
[ Hits: 2048 | Votes: 5 | Rating: 5.40 ]
- KENWOOD TL-922 Modifications
- Allow 9 bands and 1300 Watt output on the TL-922 amplifier with this document by PA0FRI
[ Hits: 2721 | Votes: 9 | Rating: 3.89 ]
- L4b 160m Mod
- L4B by Drake amplifier mod
[ Hits: 365 | Votes: 1 | Rating: 5.00 ]
- 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: 2757 | Votes: 2 | Rating: 1.50 ]
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Amplifiers : HF Amplifiers
Recent Links A simple 50W RF Power Amplifier Yet Another Amp for the 817 FT817 Amp Project Power Amplifier using 4CX1500B Dentron DTR-2000L restoration
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