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821 links and 21 categories about power on dxzone.com

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Antennas : 160M
  • An 80-160 magnetic loop antenna - A classic diamond shape loop antenna that works fine on 80 and 160 meters band. This loop design allow a few watts power only and include part list and construction details.
    [ Hits: 5036 | Votes: 2 | Rating: 1.00 ]
Antennas : Collinear Antennas : Feed Lines : Choke
  • Chokes Explained - A "choke" is the common name given to an inductor that is used as a power supply filter element. They are typically gapped iron core units, similar in appearance to a small transformer, but with only two leads exiting the housing
    [ Hits: 931 | Votes: 1 | Rating: 1.00 ]
Antennas : Tuners
  • The "Woodpecker" Tuning aid - This little gadget is that it allows you to tune up at full peak output power, whilst limiting the average power to a fraction of the peak, thereby protecting the PA from meltdown
    [ Hits: 3478 | Votes: 2 | Rating: 7.50 ]
  • Emtech ZM-2 Antenna Tuner Kit - The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP (low power). It utilizes the well-known Z-match circuit, which is especially useful for balanced antennas (like dipoles and loops).
    [ Hits: 3032 | Votes: 3 | Rating: 1.00 ]
Antennas : Wire
  • D3 Antenna for Field Day - D3+ High Performance Antennas for Field Day. This article describes versatile broadband wire antennas. These antennas will double your effective radiated power over a dipole, will be easy and inexpensive to build and install, and will be simple to match.
    [ Hits: 1811 | Votes: 6 | Rating: 4.67 ]
Antique Radios : Repair and Restoration
  • Rebuilding the Collins 516F-2 Power Supply - The Collins 516F-2 is a heavy-duty power supply for the KWM-2/2A transceivers and the 32S-1,2,3 series of Collins transmitters.
    [ Hits: 1096 | Votes: 4 | Rating: 6.75 ]
Contesting
  • Getting started in contest - A PowerPoint presentation by Bruce Draper, AA5B on how to get started in contesting
    [ Hits: 486 | Votes: 0 | Rating: 0.00 ]
Software : Circuit Design
  • ViPEC Network Analyzer - This program intended for electronic circuit analysis (mainly for Linux). ViPEC is a powerful tool for the analysis of high frequency, linear electrical networks.
    [ Hits: 831 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Alternative Power
  • CirKits - Solar power DIY kits. Homebrew your own solar power regulator, and power center.
    [ Hits: 464 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers
  • Relay Driver for Power Amps - A simple but complex relay driver for power amplifiers
    [ Hits: 420 | Votes: 0 | Rating: 0.00 ]
  • 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: 1617 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Amplifiers : HF Amplifiers
  • 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: 2868 | Votes: 1 | Rating: 8.00 ]
  • 80 m Hexfet power amplifier - 80m hexfet power amplifier by W7ZOI
    [ Hits: 3229 | Votes: 3 | Rating: 7.67 ]
Technical Reference : Amplifiers : VHF Amplifiers
  • Six-Meter Linear Amplifier - This homebrew six-meter linear amplifier started off life as a "junker" Alpha 76PA h.f. amplfier. Power output is 800W
    [ Hits: 1399 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Grounding
  • Lightning Safety & Power Quality Issues - LightningProtection: Lightning Safety & Power Quality Issues. A moderated professional forum by recognized experts, for accurate technical information on lightning, surge and grounding information.
    [ Hits: 614 | Votes: 2 | Rating: 10.00 ]
Technical Reference : Homebrew
  • 70 cm Power splitter - A simple accurate power splitter for the 70cm uplink to Oscar 13 by G8EUX
    [ Hits: 1338 | Votes: 2 | Rating: 1.00 ]
Technical Reference : Morse Keys
  • RF Actuated Keying Monitor - Battery-powered monitor designed to provide an audible indication of keying for those whose rigs lack a CW sidetone
    [ Hits: 118 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Power Supply
  • Variable regulated power supply - 1.2-30V 1.5A variable regulated power supply
    [ Hits: 2320 | Votes: 3 | Rating: 5.00 ]
  • 15 A from a PC Power Supply - 13.8 V 15A from a PC power supply
    [ Hits: 11607 | Votes: 9 | Rating: 6.90 ]
  • The Smart Switch - The purpose of this project is to build a smart switch A smart swith is a swith that needs a short press and the power will be turned ON.
    [ Hits: 815 | Votes: 0 | Rating: 0.00 ]
  • Small Unregulated Power Supply Project - Here's a simple power supply that can be used in many applications. It is not regulated , so keep that in mind for voltage sensitive devices , and of course you will need to understand how to select the correct amperage and voltage for the AC transformer.
    [ Hits: 951 | Votes: 0 | Rating: 0.00 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • 40 meter QRP Transceiver - This semi-homebrew QRP (low power) CW transceiver is based on the ARK-40 transceiver kit, by S&S Engineering. With its built-in CW keyer and 5 watts of power, the basic ARK-40 transceiver is an outstanding 40 meter CW performer
    [ Hits: 7458 | Votes: 4 | Rating: 7.25 ]
Technical Reference : Radio Frequency Interference : BPL
  • Ham Radio and BPL - Broadband over Power Lines (BPL) and Amateur Radio by the Rochester Amateur radio club
    [ Hits: 175 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Sound Card Radio Interfacing
  • ICOM IC-E90 accessories - CI-V Interface and Power supply adapter for the IC-E90
    [ Hits: 571 | Votes: 2 | Rating: 5.50 ]
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