Fm transmitters

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4 Watt FM Transmitter Electrical Circuit, Electrical Circuit Diagram, Credit Card Application, Life Insurance Quotes, Electronic Schematics, Electronic Circuit Projects, Travel Credit Cards, Electronic Circuit, Circuit Projects

The following is a simple yet powerful 4W FM transmitter which is tunable to 88-108MHz frequency. Connect to your ipod/computer, etc. When this was first made, I only had a 2N2219A on hand, which resulted in a lower RF output. I have since swapped out the transistor for a 2N3866 for full 4W output at around 15VDC supply. In order to achieve a high output level, you will need a well tuned antenna, and a large heatsink to dissipate the heat from T2 transistor. Transmitter was mounted in metal…

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1KM Power FM Transmitter Dipole Antenna, Fm Radio Receiver, Electronic Circuit Design, Electronic Projects, Hobby Electronics, Electronic Schematics, Electronic Circuit Projects, Electrical Projects, Electronics Projects Diy

This small power FM transmitter can transmit more than 1 km in good conditions. The modulation can be made so much with a microphone or audio source. Circuit of power fm transmitter is built around 2n2218 transistor. Transmitter coil is 5 turns of enameled 22 AWG wire, with diameter of 1 cm without nucleus. Look at the capacitors that it should be ceramic. The antenna should possess from 15 to 40 cm. For transmission it ties a receiver of FM (radio) in the proximity to half volume in a free…

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Simple Miniature FM Transmitter Spy Microphone, Emergency Generator, Valve Amplifier, Diy Amplifier, Electronic Circuit Design, Electrical Circuit Diagram, Hobby Electronics, Electric Circuit, Electronic Schematics

I found this FM transmitter circuit on the internet, it works very well and it is very simple to build, even for amateurs. I managed to squeeze all the parts on small 1.5 x 2 cm PCB. When using small wire antenna and 3V power the range is 50m. The coil has 10 turns on a 3 mm diameter and is wound with 0.3 mm copper wire. The microphone is an electret type. Transmitting frequency is changed by stretching or compressing the coil. Furthermore, we can change the frequency by changing C2…

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