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Posts tagged फ़िल्टर

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.

30 Meter Band Direct Conversion Receiver

30 Meter Band Direct Conversion Receiver

ESR meter circuit

ESR meter circuit using 78L05, Z86E0412, 4094, BC328, BC558, BC338, BC548, 1N4148, 1N4002

Make led light car

Make led light car circuit using 74C164, 4011

Radio FM Receiver Circuit Diagram TEA5710

AM FM Radio FM Receiver Circuit Diagram using TEA5710 / TEA5710T

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