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Posts tagged QRP、

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.

lm386 projects

lm386 projects lm386 audio amplifier circuit LM386 Circuits and Projects Collection Scheme Audio Power Amplifier

Best and simple 50 Watt Amplifier circuit diagram using ICL8063, 2N3055, 2N3791

Best and simple 50 Watt Amplifier circuit diagram using ICL8063, 2N3055, 2N3791 parts R1 200 Ohm 1/4 W R2 200K 1/4 W R3 30K 1/4 W R5 1K 1/4 W R6 5K 1/4 W R7,R10 1 Meg (5%) 1/2 W R8,R9 0.4 Ohm 5 W R11 10K Pot R12,R13 51K 1/4 W R14 47K 1/4 […]

Electronic Breaker Collection

Electronic Circuit Breaker Collection Electronic Breaker Collection Collection of “Electronic and Electric Engineering” This is part of the lesson and practice of Electric and electronics. And most people expect to have the expertise and experience in the field theory of this technology. This collection has been designed … in 1980, until now, it’s all there […]

Audio hi fi booster circuit

Audio Crossover Circuit using Switch ON / Switch OFF . Audio hi fi booster circuit ,Voice will be smaller when the IC TL072 not Enable or switch “OFF“ Hi–Fi Audio Power Circuit Diagram

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