Electronics Circuit Diagram

Simple Phone FM Transmitter Circuit Board and PCB Layout. Circuit Parts/Components List:
R1 – 12K Resistor
R2 – 200 Ohm Resistor
R3 – 1K Resistor
C1 – 330pF Capacitor

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The following schematic shows the Build Simple InfraRed IR Transmitter Circuit Diagram using NE555 or LM555. The circuit can be controlled using any TTL or RS-232C level control signal which makes the interfacing very simple.

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The following schematic diagram shows the Laser Transmitter Receiver Circuit Design using LM386. The The LM386 is a power amplifier designed for use in low voltage consumer applications such as AM-FM radio amplifiers, TV sound systems, intercoms. Get more information on how to design the Laser Transmitter Receiver Circuit Design using LM386 here.

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Here is an article discuss about a 3 – 3.5 Watt Power FM Transmitter Circuit Board Design. An FM transmitter is a portable device that plugs into the headphone jack. This is the schematic for an FM transmitter with 3 to 3.5 W output power that can be used between 90 and 110 MHz.

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The following schematic shows a Simple FM Wireless Microphone Transmitter Circuit Board Design. This circuit board design uses two integrated circuits, MAX4467, is an amplifier raising the microphone signal to a level suitable for frequency modulation (FM).

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