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Posts tagged boster、

Schematic diagram for a broadband QRP SWR metering circuit and SSB TRANSCEIVER 80M / 40M boster filter IF Radio

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.

3-Way and 4-Way Wiring

3-Way and 4-Way Wiring

TV monitor diagram blog

TV monitor diagram blog

4Way Audio Surround Active circuit

4Way Audio Surround Active circuit using LM1877N, 7812

Introduction to PCB Manufacture for Hobby

Introduction to PCB Manufacture for Hobby

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