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Posts tagged 설계도 SSB 엑스 전환

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.

TV signal amplifier circuit?

Nish asked: Need a circuit diagram to amplify both VHF and UHF signals received from the outdoor VHF/UHF antenna. This circuit should have a high gain output.

6v – 12v simple inverter circuit diagram

6v – 12v simple inverter circuit diagram using NE555 and TIP41, 42, 2N3904

Audio Activated Switch circuit

Audio Activated Switch circuit using LMC7215, ZXM61N02F

Headphone amplifier circuit

Headphone amplifier circuit using LM386N, TL082P

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