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Posts tagged metering

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.

PC Serial Port Circuit

PC Serial Port Circuit PC serial port circuit to RS-232 pin out and cable

741 audio level led indicator

741 audio level led indicator

Vocal ELiminator circuit

Vocal ELiminator circuit using TL084 This neat little circuit will remove the vocals

75W Power Amplifier circuit

75W Power Amplifier circuit based using STK465 75W Power Amplifier circuit based using STK465 Here is stereo of the circuit diagram of a power amplifier with the STK465 single power chip which is supported by several components that make a better sound output. This amplifier is a single output amplifier, so if you want a […]

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