amplifier 20 m

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amplifier 20 m

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Radio Equipment : VHF-UHF Amplifiers : RM VLA-200
  • RM VLA 200 schematic  updated - Schematic diagram of the VLA 200 power amplifier by RM Italy
    [ Hits: 889 | Votes: 4 | Rating: 6 ]
  • RM VLA 200 specifications - Picture and specifications of the VLA 200 amplifier
    [ Hits: 271 | Votes: 1 | Rating: 1 ]
Technical Reference : Amplifiers
  • Amplifier Technology: Tube vs. Transistor - An interesting article that compares tube amplifiers versus transistor amplifier.
    [ Hits: 184 | Votes: 0 | Rating: 0 ]
  • 100 Watt RF Power Amplifier for 2 GHz - Modification to an old cellular phone base station modules, with a fairly reduced output power (10 watts or so), the stock power amplifier modules will cover the 2.3 GHz and 2.4 GHz amateur radio bands.
    [ Hits: 160 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers : HF Amplifiers
  • 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: 1577 | Votes: 7 | Rating: 7.15 ]
  • Reparing a Heathkit SB-101 - A document describing the reparing and restoration of an old Heathkit SB-101 power amplifier
    [ Hits: 323 | Votes: 0 | Rating: 0 ]
  • 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: 596 | Votes: 6 | Rating: 7.33 ]
  • 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: 169 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers : VHF Amplifiers Technical Reference : Preamplifiers
  • 435 plus 1296MHz ATF54143 Pre-amplifier - The prototype for this amplifier was originally designed for 70cm and was used on the 2004 3B9C Dx-pedition to Rodriguez Island for satellite and EME. It had a noise figure of 0.49dB with an associated gain of 20dB.
    [ Hits: 333 | Votes: 0 | Rating: 0 ]
  • VHF UHF Low noise Amplifiers - 2m 70cm 23cm Low noise Amplifiers, 3 Low noise amplifiers Outdoor unit with DB6NT parts completed.
    [ Hits: 128 | Votes: 2 | Rating: 5 ]
Technical Reference : QRP Projects
  • JBOT QRP linear amplifier - JBOT stands for Just a Bunch of Transistors. It is a simple, stable and easy to build 5 watts linear amplifier build out of a bunch of ordinary low power NPN transistors.
    [ Hits: 81 | Votes: 0 | Rating: 0 ]
Technical Reference : SWR Meters
  • SWR-Display - The intention was to determine also very small SWR ratios with small power exactly. With this SWR meter, for example, the inputs of RF amplifiers with power <-20 dBm can be measured. In German
    [ Hits: 142 | Votes: 1 | Rating: 8 ]
Technical Reference : Test Equipment : Signal Generator
  • Two Tone Generator - A two tone generator is an essential test gear made with just four transistors that helps you evaluate your amplifiers, mixers, receivers for distortion. Distortion makes all the difference between a pleasant receiver and a horrible sounding one, between a clean transmitter and bad, splattering one on air.
    [ Hits: 81 | Votes: 0 | Rating: 0 ]

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