dc power

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Antennas : Indoor
  • DCTL Portable Antenna - A Low Power Indoor Portable HF Antenna by N5ESE
    [ Hits: 175 | Votes: 0 | Rating: 0.00 ]
Antennas : Satellite DX Resources : Ham Radio Awards : Castle Awards Manufacturers : Amplifiers
  • I0JXX - The I0JXX is an italian company that offers market their projects, also sells electronic products of high quality, both for Ham, both Broadcast and their accessories. VHF Antennas, mosfet power amplifiers, filters, insulators, power dividers, telescopic poles, antenna masts
    [ Hits: 2512 | Votes: 2 | Rating: 8.50 ]
Manufacturers : Broadcasting Equipment
  • Eletec Broadcast - EB Broadcast provides Audio, Studio and Transmission Equipment, FM Transmitter, rf power amplifiers, audio processor for radio stations.
    [ Hits: 244 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Power Supply
  • Astrodyne - Dedicated to the design, manufacturing, technical support, and delivery of innovative and cost effective power solutions for worldwide applications. AC/DC switching power supplies and DC/DC converters.
    [ Hits: 458 | Votes: 0 | Rating: 0.00 ]
  • Martek Power - Martek Power designs and manufactures a wide of high performance power supplies for various industries. Power supplies AC-DC, DC-AC inverters, DC-DC, EMI Filters
    [ Hits: 220 | Votes: 0 | Rating: 0.00 ]
  • Tektronix - DC Power Supply - A Tektronix DC Power Supply lets you generate the power to satisfy many different applications simply and accurately. Learn about these tools for precision measurements.
    [ Hits: 141 | Votes: 0 | Rating: 0.00 ]
  • SEC America, LLC - offers Rack Mountable DC Power Supplies, OEM Power Supplies, and Communication Series Desktop Power Supplies for a wide range of uses, including powering radio equipment.
    [ Hits: 135 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Test Equipment : Multimeters
  • EQS Systems - Test and measurement instrumentation, AC & DC power supplies, power sources and analyzers, data acquisition systems and boards
    [ Hits: 229 | Votes: 0 | Rating: 0.00 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • FT-817 DC Circuit Protection - A schematic for a DX circuit protection for the Yaesu FT-817, provides protection from the external power supply overvoltage by DL2LTO in german
    [ Hits: 888 | Votes: 1 | Rating: 3.00 ]
Shopping and Services : Electronic Components
  • Radius Power - DC Filters - DC filters from radius power are specifically optimized for applications with DC supply like e.g. photovoltaic inverters. Radius Power provides total power solutions, EMI filters solutions from design to manufacturing, Three Phase, Single Phase, Power Line, IEC inlet, Power entry modules Filters.
    [ Hits: 110 | Votes: 2 | Rating: 8.00 ]
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: 821 | Votes: 91 | Rating: 8.83 ]
Software : Software Defined Radio
  • SDR-RADIO.com - SDR-RADIO.com is a Windows console for SDR receivers and transceivers. Designed for the commercial, amateur radio and short-wave listener communities, the console provides a powerful interface for all SDR users. Many SDR owners have made their radios available over the internet. Just look at the Web Servers page for a list of the radios you can use. You do not need a licence to use this sodftware with RFSPACE, FUNcube Dongles, Soundcard (SoftRock) and low-end SDRs.
    [ Hits: 2427 | Votes: 2 | Rating: 6.00 ]
Technical Reference : Alternative Power 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: 1362 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers : VHF Amplifiers Technical Reference : Batteries Technical Reference : Filters
  • 1.8-54 Mhz Low pass filter - An easy to make HF low pass filter form high power by k8cu
    [ Hits: 3425 | Votes: 2 | Rating: 2.00 ]
Technical Reference : Homebrew
  • QRP AM(cw) Transmitter for 10 meters - In this project, you will make a simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator.
    [ Hits: 914 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Power Supply
  • 28 VDC Power Supply - This little project will make a portable 28 Volt DC power supply using two 12 Volt, 4.5 Ah rechargeable lead-acid batteries
    [ Hits: 1221 | Votes: 0 | Rating: 0.00 ]
  • HV power supplies - WV0NNI 2,800 VDC @ 2 Amps Continuous Variac adjusts filament voltage. A voltage doubler circuit, well suited for smaller, compact linear amplifiers.
    [ Hits: 1187 | Votes: 1 | Rating: 5.00 ]
  • Non-relay instant RF Switching - Coax lines to do the RF switching. The advantages are instant switching, no power wasting DC control circuits.
    [ Hits: 313 | Votes: 0 | Rating: 0.00 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • QRP AM CW transmitter - A simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator
    [ Hits: 921 | Votes: 2 | Rating: 8.50 ]
  • 40 CW QRP Transmitter - Here is a easy to build and cheap CW transmitter using 40 m cristals. Power output is approximately 6 Watts for a supply voltage of 13.8 VDC
    [ Hits: 682 | Votes: 2 | Rating: 6.50 ]
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