swr metering circuit and ssb transceiver 80m 40m boster filter if radio

  
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A schematic diagram for a broadband QRP SWR metering circuit for use in a QRP antenna tuner. One could simply hold a momentary DPDT switch down and watch the LED while tuning the capacitors of the antenna tuner for minimum or zero light.
swr metering circuit and ssb transceiver 80m 40m boster filter if radio - schematic




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