Amplifier

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. 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
  • Easy Kilowatt Linear Amplifier
    Rf amplifier for hf ham radio service - includes easy to understand designs and penny-cheap construction details
  • 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.
  • 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
  • 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
  • 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
  • Yaesu VL-1000 amplifier
    The Yaesu VL-1000 Quadra HF Linear amplifier
  • 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

  • SUPERVOX - S 300

    • AM CW SSB linear amplifier for 160 80 and 40 meter band
    Hits: 3276 | Votes: 2 | Rating: 5.5

  • 1.5 to 30 Mhz RF Amplifier   pop

    • This high range amplifier is very small SB200 size Vacuum variable input and output caps ...
    By: Gerry King Hits: 53899 | Votes: 43 | Rating: 3.82

  • 10 W Linear Amplifier

    • This article describes a 10 watt linear amplifier that is capable of delivering over 15 ...
    By: SM0VPO Hits: 11439 | Votes: 12 | Rating: 5.25

  • 10m FM Amplifier

    • 100 W output RF amplifier for 10 meter band project by W4NFR
    Hits: 783 | Votes: 3 | Rating: 5.67

  • 160m linear amplifier - pictures

    • Pictures of a homemade monoband linear amplifier for 160m band powered by 3 x QB5 ...
    By: 9A&A Hits: 532 | Votes: 2 | Rating: 2

  • 20 W HF Power Amplifier

    • A HF power amplifier with a push pull of AFT09MS015N The small signal gain of ...
    By: IN3OTD Hits: 192

  • 3-500Z Amplifier Project

    • This article loaded with nice pictures and schematics describes a 160 10 meter linear amplifier ...
    By: William Moneysmith Hits: 1093 | Votes: 4 | Rating: 9.5

  • 4 KW RF Amplifier

    • HF power amplifier project powered by GU-78B by SV8JE
    Hits: 1588 | 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 ...
    Hits: 12404 | Votes: 19 | Rating: 5.47

  • 40m linear amlifier made by 9A6A

    • Pictures of a monoband linear amplifier for 40m band 2 x QB5 1750 made by ...
    By: Petar Milicic Hits: 817 | Votes: 1 | Rating: 10

  • 4CX1500

    • This is a 4CX1500B grid driven amplifier that is built like a tank The unit ...
    Hits: 11414 | Votes: 12 | Rating: 6

  • 5-band RF Power Amplifier

    • This project uses a widely available IRF510 MOSFET work on HF 80 40 30 20 ...
    Hits: 6965 | Votes: 5 | Rating: 7.4

  • 500 WATT PA by SM0VPO

    • 500W Power Amplifier by Harry Lythall - SM0VPO
    By: SM0VPO Hits: 18918 | 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: 2222 | Votes: 3 | Rating: 3.67

  • 600 Watt HF Amplifier   pop

    • Schematics plans by K9GDT and all infos to build a 600 Watt HF Amplifier The ...
    By: K9GDT Hits: 70473 | Votes: 128 | Rating: 4.49

  • 600W LDMOS Power Amplifier

    • A comeplete home made 600W LDMOS RF power amplifier Settings can be made on a ...
    By: HG7AN Hits: 953 | Votes: 1 | Rating: 10

  • 7 Watt HF Amplifier

    • An RF power amplifier providing 7 Watts output in HF bands schematic by ON6MU ...
    Hits: 3341 | Votes: 2 | Rating: 5.5

  • 80-10m Linear Amplifier

    • High-power 3-500 HF linear amplifier by Don Pinnock G3HVA
    Hits: 2977 | Votes: 2 | Rating: 9

  • 811 Linear Amplifier project

    • A lower power desktop linear with integrated 120vac power supply This very compact dual 811 ...
    Hits: 1637 | Votes: 2 | Rating: 10

  • A 20m monoband Power Amp

    • The 20m monoband 4-1000 amplifier, by Jelmer (pa5r), Herman (pa0ten) and Frans (pa5ca)
    Hits: 2895 | Votes: 2 | Rating: 9.5

  • A LF power amplifier

    • A Low Frequency LF RF Power Amplifier by VK5BR it operates in a linear mode ...
    Hits: 3318 | Votes: 2 | Rating: 1.5

  • A simple 50W RF Power Amplifier

    • A simple RF power amplifier initially designed for 40 meter band can work on 10 ...
    By: AC2CZ Hits: 1642 | Votes: 1 | Rating: 8

  • Adding 160M to HF amplifiers

    • updated original manuscript article published in January 1989 QST by Richard L Measures AG6K April ...
    Hits: 3240 | Votes: 2 | Rating: 10

  • AL80B Mod

    • Ameritron QSK 5 PC mod for AL80B
    Hits: 827

  • AL811 trouble shooting

    • Ameritron AL80B AL811H AL572 Amplifier Trouble Shooting. Tubes replacement, resistor changes.
    Hits: 1282 | Votes: 4 | Rating: 7.5

  • Alpha Amplifier Upgrades

    • Alpha 77D,DX,SX, Alpha 76, Alpha 78 and 374 repair service and upgrade kits
    Hits: 2695 | Votes: 6 | Rating: 10

  • Build an HF Linear Amp

    • Hombrew project to build an HF linear amplifier whose output is 210W for 16W of ...
    Hits: 22689 | Votes: 8 | Rating: 6.38

  • Dentron DTR-2000L restoration

    • The Dentron DTR2000L is an HF amplifier from the 1980 era It uses a single ...
    By: NR7N Hits: 712 | Votes: 4 | Rating: 9.75

  • Dentron GLA-1000 Conversion

    • Dentron GLA-1000 Conversion, modification with 4 × PL/EL-519 or 2 × GI-7B
    Hits: 1591 | Votes: 2 | Rating: 4.5

  • Easy Kilowatt Linear Amplifier

    • Rf amplifier for hf ham radio service includes easy to understand designs and penny cheap ...
    Hits: 22724 | Votes: 20 | Rating: 5.4

  • FT817 Amp Project

    • How to build a lightweight amplifier that can be backpacked around.
    By: VK3YY Hits: 1280 | Votes: 1 | Rating: 1

  • G3YXM 500 W PA

    • 40-80-160 meter band linear amplifier
    Hits: 3625 | Votes: 3 | Rating: 7

  • GS-35B Tube Amp

    • 160-10 Meters 1500 Watt Amp - W4NFR
    By: William Moneysmith Hits: 582 | Votes: 2 | Rating: 9.5

  • Heathkit SB-220

    • The Heathkit SB 220 two 3 500Z amplifier made a notable impact in the world ...
    Hits: 3830 | Votes: 2 | Rating: 5.5

  • HF Amp Project

    • This is the HF Packer amplifier project KG9E was able to build this amp and ...
    Hits: 963 | Votes: 3 | Rating: 7

  • HF power amplifier using GI7B

    • Gi7b is tube designed for microwaves but working good as HF amplifier Idea is to ...
    Hits: 4079 | Votes: 12 | Rating: 4.92

  • HF QRP Lin Ampl

    • HF QRP Linear Amplifier with 2x 2SC2166 2x 2SC1969 Push Pull Transistors 13 8V ...
    Hits: 4610 | Votes: 6 | Rating: 4.17

  • Home Made 2.4 kW HF Amp

    • A Solid State HF Amplifier with 16 mrf150 featuring 2 4 kW 1 8 MHz ...
    Hits: 1599 | 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: 1454 | Votes: 2 | Rating: 6

  • Homebrew HF Amp with 3CX3000F7

    • Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC The amp ...
    Hits: 3275 | Votes: 9 | Rating: 6.33

  • Homebrew 813 Linear Amplifier

    • 813 Linear Amplifier Project includes many schematics, drawind and assembling construction
    Hits: 17501 | Votes: 14 | Rating: 8.13

  • I5UXJ home made amplifiers

    • Infomration schematics and pictures about various hf and vhf QRO linear amplifiers
    Hits: 5410 | 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 ...
    Hits: 4996 | Votes: 6 | Rating: 3.5

  • KENWOOD TL-922 Modifications

    • Allow 9 bands and 1300 Watt output on the TL 922 amplifier with this document ...
    Hits: 2845 | Votes: 9 | Rating: 3.89

  • L4b 160m Mod

    • L4B by Drake amplifier mod
    Hits: 610 | 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 ...
    Hits: 3025 | Votes: 2 | Rating: 1.5

  • MOSFET amplifier for 80 mt.

    • Picture index of 150W MOSFET linear amplifier for 80m 1996 includes photos and schematics ...
    Hits: 17877 | Votes: 24 | Rating: 4.96

  • N4ATS.com

    • N4ATS Devoted to the Yaesu FL 7000 Amplifier I have been rebuilding repairing and applying ...
    By: Steve Hits: 2255 | Votes: 3 | Rating: 9.33

  • QRP Amplifier

    • HF Bands QRP linear amplifier by SM0VPO
    By: SM0VPO Hits: 15488 | 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 ...
    By: Sivan Toledo Hits: 329

  • The G2DAF Linear Amplifier

    • Scans of original G2DAF articles on his HF linear amplifier using QY3-125 tube
    Hits: 1827 | Votes: 5 | Rating: 3

  • WA2EBY HF amplifier

    • Revisiting the WA2EBY broadband HF amplifier
    Hits: 2606 | Votes: 2 | Rating: 7

  • YC156 Conversion

    • RF Amplifier project modified the original chassis to use a 4CX1000A instead of a YC156 ...
    Hits: 1292 | Votes: 1 | Rating: 6
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