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Posts tagged 트랜시버 튜너

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.

Alarm Car Cmos 4060 schema

Alarm Car Cmos 4060 schema The area to be monitored is connected via a cable and allows remote audio listening. You can use this in your garden and listen for any unusual sounds, or maybe just wildlife noises. If you have a car parked in a remote location, the microphone will also pick up any […]

STK4171II Audio Amplifiers

STK4171II Audio Amplifiers STK4171II Audio Amplifiers circuit diagram STK4171II Audio Amplifiers This design is based on the 75 Watt Audio Amplifier, and was developed mainly to satisfy the requests of correspondents unable to locate the STK4171II STK4171II Audio Amplifiers

mic mixer circuits

mic mixer circuits mic mixer circuit with IC mic mixer circuits mic mixer circuits The mixer circuit below has 2 line inputs and 2 mic inputs, 2 line outputs . The mic inputs are suitable for low impedance 200-1000R dynamic , simple mixer was designed for three dynamic microphones.

Super Booster Power Amp circuit

Super Booster Power Amp circuit using BD712, BF245A, BF256A, BC639, BF256C, BF871, BD139, BD711, BC560C, BC550C, MJE340, 2SA1930, 2SC5359, 2SC5171, 6N136

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