power supply

The DXZone.com

power supply

90 links - and 3 categories

Manufacturers : Accessories
  • Pro Audio Engineering - High-quality products for broadcast and amateur radio. Kx33 Low-RFI AC Power Supply for HF Transceivers, Elecraft Heatsinks, Fair-Rite Mix 31 Ferrites
    [ Hits: 118 | Votes: 0 | Rating: 0 ]
Operating Aids : Beginner's Guides
  • Setting Up Your HF Station - From buying an amateur radio transceiver, choosing the correct power supply, selecting the antenna and its feed line, to choosing the best microphone and accessories. A nice presentation for beginners.
    [ Hits: 187 | Votes: 2 | Rating: 8.5 ]
Operating Modes : Portable Operations
  • QRP Portable Station Winter Configuration - An article describing equipment needed to make portable operations evenin winter cold times. The article is completed by a nice video describing not only the radio setup but even the tent and power supply equipment
    [ Hits: 414 | Votes: 1 | Rating: 8 ]
Radio Equipment : HF Transceivers : ICOM IC-756
  • ICOM IC756 Fan Modification - ICOM IC756 PRO II III, PS125 Fan Modifications, install an external cooling fan on the ICOM IC756 PROIII to minimize the heat on the chassis, then will perform a fan modification on the ICOM PS125 power supply to minimize the fan noise.
    [ Hits: 113 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers : HF Amplifiers
  • Stone Creek Special 600 HF RF Amplifier - This is a Solid State Amplifier Project. It uses 4 MRF150 MosFet Power Transistors. The Power Supply Voltage is 50 VDC at 21.5 Amp. The max power available is 1,075 Watts. The Efficiency is about 65% +/- and runs Class AB Solid State.
    [ Hits: 270 | 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 ]
  • Building a Robust PL519 Tube HF Amplifier - his article explores the construction of a PL519 tube amplifier, utilizing Ulrich L. Rohde N1UL's insights. Focusing on a modest 25W continuous output, the design ensures robustness with forced air cooling. The detailed breakdown covers input matching, screen grid voltage generation, bias adjustment, anode power supply, heater power supply, and monitoring circuitry, providing valuable guidance for ham radio enthusiasts.
    [ Hits: 42 | Votes: 0 | Rating: 0 ]
Technical Reference : Components
  • Repair or Replace Electrolytic Capacitors - For low voltage applications, like cathode bypass capacitors, most vintage types have an axial configuration, which is less common today but still available. Electrolytic power supply caps likely constitute the single worst liability in old audio, radio and test equipment. Rap about Electrolytics, Reforming, Chassis-Mount Replacements, Under-Chassis Installation, Rebuilding Capacitors
    [ Hits: 120 | Votes: 1 | Rating: 6 ]
Technical Reference : Homebrew
  • Experimental HF 6-band SSB transceiver - An SSB radio for the HF bands will be presented. Featuring 12 to 20 Watts of output power (depending on DC supply), full DDS frequency generation, covering 6 major frequency bands (1.8, 3.5, 7, 14, 21 and 28 MHz) within the short wave amateur radio spectrum. The rig also features colored LCD and front panel backlight.
    [ Hits: 709 | Votes: 14 | Rating: 9.86 ]
Technical Reference : Power Supply
  • Solar power in a Can - This is a great project to learn about the basics of electronics, batteries, and renewable energy. The finished project can charge a phone or tablet, light up a camp-site, and provide for whatever other small electric needs you have.
    [ Hits: 220 | Votes: 0 | Rating: 0 ]

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