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Posts tagged पैमाइश

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.

Audio Selector Circuit

Audio Selector Circuit

Electronic Circuit Diagram driver bridge pre power Amp 20Hez with 2SC1469

Electronic Circuit Diagram driver bridge pre power Amp 20Hez with 2SC1469

Amplifier Schematic

Amplifier Schematic 4000W Power amplifier schematic using MJ15003, MJ15004, 2N4538, 2N6421, 2N6433

Touch switch project

Touch switch project using 4011, BC557

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