transformer ht

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54 links

Antennas : Baluns
  • Balun and Transformer Core Selection - Occasionally errors are made regarding core selection. This especially includes baluns, where on occasion some very strange ideas surface.
    [ Hits: 3519 | Votes: 3 | Rating: 6.00 ]
  • Balun Construction - Construction and use of broadband transformers
    [ Hits: 4089 | Votes: 5 | Rating: 6.80 ]
Antennas : Beverage
  • K1FZ Beverage Antenna Transformers - The K1FZ series of beverage antenna transformers are what you need to utilize your beverage antenna to its full potential
    [ Hits: 2822 | Votes: 5 | Rating: 8.00 ]
Antennas : Feed Lines
  • The quarter wave transformer - A transient analysis of an inpedance transforming device, by W9DMK, in pdf format
    [ Hits: 729 | Votes: 1 | Rating: 1.00 ]
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: 932 | Votes: 1 | Rating: 1.00 ]
Antennas : Shortwave
  • An easy loop for VLF - An easy VLF loop, 200Hz-20kHz reception without transformers by Renato Romero and Marco Bruno
    [ Hits: 6345 | Votes: 5 | Rating: 4.60 ]
Antennas : Windom
  • OH7SV Matti Hohtola Ham Projects - The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO, 50 ohm to 200 ohm HF wide band transformers, Wilkinson splitter for RX measurements, Windom baluns 2001/2004, Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver
    [ Hits: 19005 | Votes: 25 | Rating: 7.88 ]
  • The FD4 (FD3) Windom Antenna  pop - The 4-band Fritzel model FD4 is a special version of a Windom antenna. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in the wire at one-third from one end
    [ Hits: 47366 | Votes: 79 | Rating: 5.51 ]
Manufacturers : Baluns
  • CWS ByteMark - CWS ByteMark's Baluns (Balanced to Unbalanced) and Ununs (unbalanced to unbalanced) transformers are developed jointly with Dr. Jerry Sevick, W2FMI, who is known worldwide for his work on transmission line transformers
    [ Hits: 784 | Votes: 2 | Rating: 5.50 ]
Manufacturers : Filters
  • MicroSignals - MicroSignals produces a line of RF and IF signal processing components that offer high performance at an exceptional value. To achieve this MicroSignals began with an engineering team that possessed an excellent background in RF Transformer and Balun design.
    [ Hits: 573 | Votes: 1 | Rating: 7.00 ]
Manufacturers : Parts and Surplus
  • Kemo Electronics - Electronic kits, modules, devices and cases, transformer, boards, electronic accessories
    [ Hits: 2266 | Votes: 14 | Rating: 3.57 ]
  • Peter W. Dahl Co. - Quality amateur radio transformers and electrical supplies
    [ Hits: 860 | Votes: 2 | Rating: 4.50 ]
Manufacturers : Power Supply
  • Peter W. Dahl Co. - Custom transformers by Mr. Dahl has been designing specialty transformers and reactors for over 35 years, and has been a licensed Ham radio operator, K0BIT, since 1955.
    [ Hits: 401 | Votes: 1 | Rating: 10.00 ]
Manufacturers : QRP Kits Radio Equipment : HF Transceivers : ICOM IC-756
  • PC to RTX interface - Schematics for IC-706, IC-718, IC-756PRO, TS-570, TS-870, and simple universal S.B. interface All three interfaces presented on this page employ galvanic isolation of the transceiver from PC computer. Audio paths are separated by transformers, optocouplers serve to separate the digital paths (PTT and RTTY keying).
    [ Hits: 3254 | Votes: 2 | Rating: 7.50 ]
Shopping and Services : Electronic Components
  • Electronic Goldmine - Electronic components dealer, semiconductors, switches, leds, motors, solar energy, ferrites, toroids, capacitors, batteries, jacks and plugs, microphones, meters, power supplies, speakers, transformers, wire and more
    [ Hits: 1336 | Votes: 2 | Rating: 9.50 ]
Shopping and Services : Electronics
  • Altana Tubes - Brazilian vacuum tube, capacitors, transformers, plugs and connectors, resistances dealer
    [ Hits: 679 | Votes: 5 | Rating: 10.00 ]
Shopping and Services : RF Tubes
  • Antique Electronic Supply - Antique Electronic Supply has a complete line of vacuum tubes. We feature Svetlana vacuum tubes for amateur radio, broadcaasting and audio applications. We have over 700,000 new old stock tubes to choose from. We also have a complete line of transformers, featuring Hammond and One Electron. Capacitors, resistors, parts, books, etc. Most orders shipped within 24 hours. Major credit cards accpeted. E-mail for free catalog!
    [ Hits: 11030 | Votes: 30 | Rating: 4.54 ]
Shopping and Services : Regional : Europe : Italy
  • Italtras - Power transformers for electronic, toroidals,three-phases
    [ Hits: 271 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Components
  • Inductors and Transformers - Solenoids, variable inductors, electromagnetic induction, transformers theory at G3YNH
    [ Hits: 304 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Grounding
  • Safe,effective grounding - Practical applications for end-fed antenna transformers and safe, effective grounding
    [ Hits: 985 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Homebrew Technical Reference : Power Supply
  • How to obtain a dual voltage without a transformer - How to obtain a dual voltage without a transformer
    [ Hits: 4421 | Votes: 6 | Rating: 9.00 ]
  • 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: 954 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Sound Card Radio Interfacing
  • Rig to Soundcard Interface by M0UKD - Practival project that contains two isolation transformers, one for AF from the tranciever to the line in on a soundcard, and one from the audio out of the soundcard back to the mic / data input of the radio. Both of which are variable inside the interface via two preset resistors.
    [ Hits: 543 | Votes: 1 | Rating: 2.00 ]
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