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Audio Circuits: Intercom Electronic Circuits
http://www.discovercircuits.com/A/au-intercom.htm
Low cost transistorised intercom - This is a circuit for a low cost intercom that is made by using transistors. __ Designed by Electronics Projects for You. Low Power Op-Amp-Audio Amp Intercom - The example below illustrates using an op-amp as an audio amplifier for a simple intercom. A small 8 ohm speaker is used as a microphone which is ...
Audio Circuits: Intercom Electronic Circuits
http://www.discovercircuits.com/A/au-intercom2.htm
Intercom Audio circuits, schematics or diagrams. DiscoverCircuits has 45,000+ free electronic circuits. DiscoverCircuits.com, has 45,000+ electronic circuits, cross-referenced into 500+ categories. We have searched the web to help you find quick design ideas.
Intercom Circuit - ElectroSchematics.com
https://www.electroschematics.com/intercom/
The intercom schematic fulfills its tasks – to provide a reliable communication line and is very simple to construct. The circuit is made up of an amplifier, two switches and two loudspeakers. If additional stations (speakers) are wished, additional switches are just incorporated into the circuit. IC LM382 is used as the final amplifier.
Intercom Circuit - ElectroSchematics.com
https://www.electroschematics.com/intercom-circuit-intercom-schematic/
Intercom Circuit. P. Marian. In this intercom schematic, the 8 ohm speakers is used as microphone and listening speaker. The 10K potentiometer controls volume and the total gain can be set with de 5k R. Use a double switch with 2 positions so when one is used to talk and the other one to listen. The switch will be in the house.
Simple Two Way Intercom Circuit Diagram
https://circuitdigest.com/electronic-circuits/two-way-intercom-circuit-diagram/
The complete circuit diagram of this Intercom Project is given below. As you can see the circuit is very simple and can be easily built over a breadboard. The main concept behind the circuit is the use of LM386 audio amplifier which receives the audio signal from microphone, amplifies it and plays it on the speaker.
Super Simple Intercom | Detailed Circuit Diagram Available
https://www.electronicsforu.com/electronics-projects/super-simple-intercom
This intercom circuit based on IC LM380 audio amplifier requires very few external components. So the circuit is very easy to assemble. Intercom circuit. Circuit diagram of the intercom is shown in Fig. 1. In addition to audio amplifier LM380 (IC1), it uses a condenser microphone (MIC1), an 8-ohm, 0.5W speaker and a few other components.
Audio Intercom by LM380 and BC109C - EEWeb
https://www.eeweb.com/audio-intercom-by-lm380-and-bc109c/
This one is a high quality audio intercom circuit that consists of two identical intercom units and each unit consists of four parts which are a power supply, a microphone preamplifier based on direct coupled BC109C transistors, an audio amplifier based on LM380 2.5W audio power amplifier IC and “Push to Talk” relay circuitry.
Two way intercom circuit diagram using transistors and ...
https://www.circuitstoday.com/intercom-circuit
The next stage of the circuit is a transformer coupled push pull amplifier stage based on L1, Q3 and Q4. Capacitor C5 is the power supply filter while capacitor C4 couples the output of the push pull amplifier to the ear piece. Circuit diagram. Two way intercom Ciruit
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