matching transformers

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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.
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DIY isolation transformers - Article about isolation transformer construction to perform optimal impedance matching. Winding the FCP isolation transformer, includes interesting table for Winding Turns and Lengths and Core Configurations for T300 T200 T400 toroids
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Two Wire Beverage - Two Wire Beverage by Jeff Parke, describes a two-wire Beverage antenna design for improved reception with switchable direction (forward/backward) and lower noise level. It includes details on building the antenna, matching transformers, and a control box for selecting direction and connecting to the receiver.
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Matching transformers for Beverage - Building some proper matching transformer for loop on ground and Beverage antennas
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