Best of Do-it-yourself FM Transmitters 1W FM Transmitter with 4 transistors This FM transmitter circuit uses four radio frequency stages: a VHF oscillator built around transistor BF494 (T1), a ...

This is a short range transmitter with a transmission range of about 10-20 meters. Follow these steps and the FM transmitter circuit diagram, to make a super easy FM transmitter.

A simple fm radio transmitter circuit which covers frequencies from 88 to 108 MHz. It is built with 3 transistors: BC109, BFR91A and BFR96S. It is quite stable and the output power is around 200 mW.

He gets bonus points for using a 1/4 – 20 bolt for winding the coil, too. The power supply for the transmitter is a single 9V battery, the battery connector being salvaged from a dead 9V.

World’s Smallest FM Radio Transmitter Built With Graphene, ‘First Step’ For Advancing Wireless Signal Processing [PHOTO] By Zoe Mintz Published 11/20/13 AT 3:43 PM EST ...

As VCOs have the ability to generate frequency-modulated (FM) signals, Hone and his team used graphene to create a nano-sized version with a frequency of 100 megahertz, which is within the FM ...

World's smallest FM radio transmitter Date: November 18, 2013 Source: Columbia University School of Engineering and Applied Science Summary: Scientists have taken advantage of graphene's special ...