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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.

Audio Amplifier Circuit Using TA7283AP

Audio Amplifier Circuit Using TA7283AP

Single Chip 60W Audio circuit

Single Chip 60W Audio circuit using LM3886

Audio Frequency Sensor Schematic

Audio Frequency Sensor Schematic using Transistor and IC  2N5086, LM3389 Audio Frequency Sensor Schematic Sensor noise for the safety of ultrasonic sensors for detecting the presence of noise in the capture tool for air propagation.

CLEAR FLUID DETECTION with OPTICAL TECHNIQUE

CLEAR FLUID DETECTION with OPTICAL TECHNIQUE using TC45584F

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