DescriptionBalanced transmatch - fixed link + differential capacitors.png
English: Schematic for a tuned-transformer type balanced line tuner, with a fixed-link transformer, with parallel-tuned output capacitors. Uses double-differential capacitor instead of secondary taps. Renowned Johnson Matchbox (JMB) circuit, whose secondary bandswitch taps are not shown. The antenna-side ground is deprecated. This is an edited section of an earlier, multi-circuit original by JNRSTANLEY uploaded 2014-10-15. The diagrams have been cosmetically altered, but otherwise are identical.
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Schematic for a tuned-transformer type balanced line tuner, with a fixed-link transformer, with parallel-tuned output capacitors. Uses double-differential capacitor instead of secondary taps. Renowned Johnson Matchbox (JMB) circuit.