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Wire Tracer (Receiver) Schematic Circuit Diagram

The circuit depicted is the receiver device of a transmitter/receiver combination that will prove extremely handy when tracing the path of electrical wiring in a building or locating a break in a wire.

Wire Tracer (Receiver) Schematic Circuit Diagram

Wire Tracer Transmitter Description

In a different section of this publication, you can find the corresponding transmitter for this wire tracer. This transmitter generates a distinctive alternating tone between 2100 Hz and 2200 Hz.

Simplified Wire Tracer Receiver Design

The receiver designed to match the wire tracer is potentially even simpler than the transmitter, as illustrated in the schematic. It comprises a short wire antenna (a piece of wire measuring 10 cm is sufficient), a high-pass filter (C1-R1), an amplifier stage (IC1), an output stage (T1), and a loudspeaker. During prototyping, a high-impedance loudspeaker from a telephone handset was used and proved highly effective.

Functionality and Usage of P1

P1 serves the purpose of adjusting amplification. At maximum amplification, the wire energized by the transmitter can be traced from several tens of centimeters away, eliminating the need for a direct electrical connection. However, it’s crucial to maintain a ground connection (earth) by holding it in your hand while using the device.

Understanding Transmitters in Different Contexts

In the realm of electronics and telecommunications, a transmitter, or simply a radio transmitter, is an electronic apparatus that generates radio waves using an antenna. This transmitter produces a radio frequency alternating current applied to the antenna, which then radiates these waves. In telecommunications, a transmitter is instrumental in sending data through radio waves. Furthermore, in the domain of process control, a transmitter functions by converting signals from sensors into standard instrumentation signals representing the measured and controlled process variable.


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