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Audio Circuits: Intercom Electronic Circuits
http://www.discovercircuits.com/A/au-intercom.htm
The circuit comprises a 3-stage resistor- capacitor coupled amplifier. When ring button S2 is pressed, the amplifier circuit formed around transistors T1 and T2 gets converted into an asymmetrical astable multivib-rator generating ring signals. These ring signals are amplified by transistor T3 to drive the speaker of earpiece. Intercoms: #'sN OZ
Audio Circuits: Intercom Electronic Circuits
http://www.discovercircuits.com/A/au-intercom2.htm
Simple Circuit Intercom - The simplest possible way to make an intercom is by connecting two loudspeakers in series with a battery, as in the circuit shown here. One of the speakers must be at a remote location. Sound waves impacting on either of the loudspeakers induce a current in its coil which is translated back into sound by the other speaker.
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.
Simple Two Way Intercom Circuit Diagram
https://circuitdigest.com/electronic-circuits/two-way-intercom-circuit-diagram/
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. The LM386 has a gain range from 20-200; by default the value of gain is 20 but can be increased upto 200 by using a capacitor across the pins 1 and 8.
Intercom Circuit - ElectroSchematics.com
https://www.electroschematics.com/intercom-circuit-intercom-schematic/
Intercom Circuit - ElectroSchematics.com Intercom Circuit P. Marian LM386 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.
Two way intercom circuit diagram using transistors and ...
https://www.circuitstoday.com/intercom-circuit
Description. A simple intercom circuit designed based on transistors is shown here. This intercom circuit does not require a changeover switch and you can use it just like a telephone and a ringer circuit is also included. IC1 UM66 and transistor Q1 forms the ringer section. When pushbutton switch S1 is pressed UM66 produces a musical tone.
Simple Intercom Network Circuit - Homemade Circuit …
https://www.homemade-circuits.com/how-to-make-simplest-intercom-system/
The circuit only uses a single chip for the amplification purpose and a couple of speakers along with a handful of passive components for acquiring the intending intercom application circuit. As seen in the figure the entire circuit hovers around the IC LM380 which is another versatile amplifier IC just like it's younger brother IC LM386.
Model 5421 Dante Intercom Audio Engine - Studio ...
https://studio-tech.com/products/m5421/
Order Code: M5421 The Model 5421 Dante ® Intercom Audio Engine is a high-performance, cost-effective, flexible solution for creating party-line (PL) intercom circuits. It's directly compatible with the Studio Technologies' range of 1-, 2-, and 4-channel Dante-enabled beltpacks and other interface-related products.
Simple transistor intercom circuit - ElecCircuit.com
https://www.eleccircuit.com/simple-intercom-using-tree-transistors/
Figure 1: Simple intercom circuit using tree transistors You may doubt how they work. Let me explain you. First of all, you need to have 2 circuits and connect them together. Look at a Block diagram below. Suppose that we want circuit 1 is a transmitter first. Press S1 to talk. Which, it determines the circuit 1 to works as the transmitter.
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