How to Build a FM Transmitter Circuit Diagram. Lets start this simple FM Transmitter Circuit Diagram making. FM transmitter circuit schematic with a single transistor. It build with
a very few numbers of components include a transistor, few capacitors,
resistors and a small microphone.
FM Transmitter Circuit Diagram
A S9014 NPN transistor is used here; you can use BC547 as an alternative of it. All the capacitor used in circuit is ceramic capacitor. Don’t be surprised with the supply voltage of 1.5 volt. Here you can use a single 1.5V AA battery cell, or a 3V battery that will be endurable for this this FM transmitter circuit. A small microphone used here is an electret condenser type microphone (see below). Must use at least a small antenna for a higher transmitting-range. Then try with a bigger antenna for increasing range.
Transistor S9014 Pinout
Electret condenser type microphone
As shown in the schematic the circuiit cannot work because there is no direct current path from collector to positive. The 24 capacitor blocks the DC. The circuit is not understandable because there are wires crossing with no indication if there is a connection at that point.
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