linear rf

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Antennas : Spiral
  • Petlowany Antennas by K6NO - WorldRadio Article on Petlowany antennas base on this principle: if a length of wire is wound into a spiral-shaped coil and excited by a radio frequency current connected to the innermost portion of the coil, it will then, and only then, exhibit RF characteristics that closely approximate those of a resonant linear wire of the same length
    [ Hits: 3095 | Votes: 9 | Rating: 6.22 ]
Manufacturers : Amplifiers
  • RF-Power Amplifiers - RF Power develope, produce and sell high quality solid state RF power linear amplifiers for hams
    [ Hits: 461 | Votes: 6 | Rating: 7.00 ]
  • RF Amplifiers - NP Technologies, Inc. - Develop, design, manufacture and test a wide range of RF Amplifier products including highly linear class A Broad Band, Cell Band, Pulse, AM & FM broadcast and Military VHF.
    [ Hits: 205 | Votes: 1 | Rating: 1.00 ]
Manufacturers : Broadcasting Equipment
  • NP Technologies Inc - Design, develop, test and manufacture a wide range of Amplifier products including highly linear class A Broad Band, Cell Band, Pulse, AM & FM broadcast and Military VHF
    [ Hits: 209 | Votes: 0 | Rating: 0.00 ]
Operating Modes
  • Sights and Sounds of Digital Signals - Preview the waterfall signature of various digital signals and listen to the sound of the digital modes. Learn about the bandwidth requirements and why a linear transmitter path is critical to successful and correct use of many modes on the amateur bands by W1HKJ
    [ Hits: 687 | Votes: 2 | Rating: 9.50 ]
Radio Equipment : HF Amplifiers : Alpha 8410
  • Alpha 8410 - Alpha 8410 Manual Tune Full Legal Limit Linear Amplifier, price and details from official product page
    [ Hits: 113 | Votes: 0 | Rating: 0.00 ]
Shopping and Services : RF Tubes
  • QRO-Parts.com - Svetlana tubes also Russian capacitors,vacuum and coaxial relay, for RF Power Linear Amplifier builders. Amateur-Radio, Broadcast. Full Online Catalog.
    [ Hits: 901 | Votes: 95 | Rating: 8.87 ]
Technical Reference : Amplifiers
  • TANKIT Priority listing - A free design aid for vacuum tube linear RF power amplifiers. Determine plate circuit operating parameters and design pi or pi-L tanks quickly and easily.
    [ Hits: 1696 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Amplifiers : HF Amplifiers
  • 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: 1435 | Votes: 0 | Rating: 0.00 ]
  • Harris linear amplifiers mods  updated - 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: 1777 | Votes: 24 | Rating: 9.46 ]
  • 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: 756 | Votes: 3 | Rating: 9.33 ]
  • 60 W Linear Amplifier Circuit - The 60 Watt linear amplifier is simple all solid state circuit using power mosfet IRF840.
    [ Hits: 1701 | Votes: 3 | Rating: 3.67 ]
  • 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: 1578 | Votes: 2 | Rating: 3.00 ]
Technical Reference : Amplifiers : RF Amplifiers Theory
  • Highly linear rf power amplifier design - The need of high linearity is one of the principal drivers in the design of power amplifiers for new generation applications
    [ Hits: 1154 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers : VHF Amplifiers
  • VHF Linear Amplifier by SV1BSX - There is not a personal design on this page, just I've transfered useful notes from PHILIPS RF Bipolar Transistors - Data HandBook about BLY89C VHF Power transistor, which is very popular among Amateur Radio homebrewers
    [ Hits: 1215 | Votes: 3 | Rating: 4.00 ]
  • 70 Mhz Linear Amplifier - A 4 meter RF Amplifier project by G5VZ, design, development and construction
    [ Hits: 395 | Votes: 0 | Rating: 0.00 ]
  • 6m 200 Watt linear using a 4CX250B - This 50 MHz RF Amplifier uses a 4CX250b forced air cooled tetrode and produces 250 W for a drive level of approximately 3 W.
    [ Hits: 791 | Votes: 0 | Rating: 0.00 ]
  • 2m 200 Watt linear using a 4CX250B - This VHF RF linear uses a 4CX250b forced air cooled tetrode and produces 250 W output for a drive level of approximately 3 W
    [ Hits: 803 | Votes: 2 | Rating: 1.50 ]
Technical Reference : Power Meter
  • Portable RF Sniffer and Power Meter - Whether we are tuning up homebrew equipment, checking antenna VSWR, adjusting a linear amplifier, or just monitoring output power during a contest, almost all aspects of ham operation can use a power meter. Paul Wade W1GHZ
    [ Hits: 1363 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Radio Frequency Interference
  • Intermodulation - Intermodulation distortion, commonly known as Intermods, is a type of interference that can occur in any non-linear junction.
    [ Hits: 421 | Votes: 1 | Rating: 10.00 ]
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