transformer ht

86 links

Beverage Transformer Calculator - W0FMS Two-Wire Beverage (SWA) Transformer Calculator
[ Hits: 1057 | Votes: 7 | Rating: 3.85 ]

RF Balun Transformers - This application note is designed to help the reader understand how balun transformers can be used in today's RF/Microwave communication applications.
[ Hits: 2141 | Votes: 1 | Rating: 3 ]
Balun construction - problems with iron cores - Lots of information and measurements relating to HF baluns and transformers constructed using Iron Powder cores
[ Hits: 2419 | Votes: 2 | Rating: 6 ]
How to Make a Great 9:1 RX Transformer - There are lots of good designs for matching transformers for receiving antennas. Make it yourself it's cheap and easy, and very high performance. This is the design used in the TRX-9 transformers.
[ Hits: 3144 | Votes: 0 | Rating: 0 ]
Transformer for Ground-Independent Receiving Antennas - Transformers theory and calculator of turns on binocular cores. Comparison with toroid cores.
[ Hits: 1305 | Votes: 2 | Rating: 4.5 ]
Magnetic Long Wire UnUn 9:1 - An impedance transformer (9:1) to feed a high impedance long wire (~450 ohm), down to a 50 ohm unbalanced coaxial input.
[ Hits: 1929 | Votes: 4 | Rating: 7 ]

Beverage transformer notes - In this article, the author discusses the importance of good transformers for Beverages, especially for common-mode isolation. The author recommends #43 ferrite for the transformer, and provides the turns required for different core types. The author also recommends using lower permeability ferrites for better performance at lower frequencies.
[ Hits: 1319 | Votes: 1 | Rating: 10 ]
Beverage and transformers - Why Beverages need good transformers by VK3APN
[ Hits: 2240 | Votes: 2 | Rating: 9 ]

75 ohm to 50 ohm Transformers - Transmission Line 75 ohm to 50 ohm Transformers
[ Hits: 769 | Votes: 3 | Rating: 3 ]

Receive 4 square antenna - N6RK receive 4 square antenna with transformer coupled antennas and true hibrid combiner
[ Hits: 1680 | Votes: 1 | Rating: 7 ]

HF Multiband end fed antennas - A multiband end-fed antenna that cover 3.5 to 30 Mhz using a 1:64 Balun based on a FT240-43 core
[ Hits: 3723 | Votes: 6 | Rating: 4.67 ]

CWS Coil Winding Specialist - Manufacturer of transformers, inductors coils and chokes. Custom winding, EMI / RFI Filters, Antenna Windings on ferrite rod, Antenna Winding on phenolic. Any antenna coil designs.
[ Hits: 593 | Votes: 1 | Rating: 1 ]

Electronic Products Design - Electronic Products Design Inc based in North Carolina, offers you custom design of transformers, coils, and telemetry control systems.
[ Hits: 254 | Votes: 0 | Rating: 0 ]

Filtronetics Inc - Maker of filters, oscillators, cristals Coils, Toroidal Inductions, Solenoids, Bifilar wound Solenoids, Trifilar Solenoids and Transformers Located in Kansas City, Missouri
[ Hits: 770 | Votes: 0 | Rating: 0 ]

Variacs - Variable Autotransformer - Use these Variac auto transformers for specific application requirements that include, but are not limited to, home coffee roasting, tube amps, and more.
[ Hits: 337 | Votes: 0 | Rating: 0 ]

Electronix Express - Online shop for all electronics needs. Cables, Buzzers all kind of electronic components capacitors, inductors, relays, resistors crystals transformers, hardware like knobs screws nuts and washers, opto electronics, diodes and transistors, soldering desoldering products, test equipmemt and tools
[ Hits: 1066 | Votes: 2 | Rating: 8.5 ]

Transformers - Description of what is a transformer and winding types
[ Hits: 339 | Votes: 1 | Rating: 10 ]

Safe,effective grounding - Practical applications for end-fed antenna transformers and safe, effective grounding
[ Hits: 1182 | Votes: 1 | Rating: 10 ]

Winding Transformers - Rolling your own transformers and chokes
[ Hits: 581 | Votes: 0 | Rating: 0 ]

Lightning and Surge Protection - Some technical information for on Opto Isolation, Transformer Isolation, Surge Protection
[ Hits: 343 | Votes: 0 | Rating: 0 ]