FM Transmitter DIY learning kit

Name: FM Transmitter DIY learning kit
SKU: 8087
Price: 9.95 USD
Availability: Discontinued

Here's A Simple Do-It-Yourself (DIY) FM Transmitter Kit. You Can Use This Simple DIY Kit To Transmit Your Voice Or Audio To Your Nearest FM

Designed by BuildCircuit in Australia

Product Retired

This product is no longer available for sale.

The seller may be offering an improved version or it may be hanging out on the beach, enjoying the retired life.

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All the orders are shipped from Sydney, Australia.

Here's A Simple Do-It-Yourself (DIY) FM Transmitter Kit. You Can Use This Simple DIY Kit To Transmit Your Voice Or Audio To Your Nearest FM

Here's A Simple Do-It-Yourself (DIY) FM Transmitter Kit. You Can Use This Simple DIY Kit To Transmit Your Voice Or Audio To Your Nearest FM Radio. You can use this FM transmitter/microphone in two wa…

Here's A Simple Do-It-Yourself (DIY) FM Transmitter Kit. You Can Use This Simple DIY Kit To Transmit Your Voice Or Audio To Your Nearest FM Radio.

You can use this FM transmitter/microphone in two ways:

a. Audio transmission using electret microphone: You can transmit your voice to FM radio with the electret microphone. You can also place the transmitter circuit close to any loud speaker so that the microphone picks up the sound and transmits to the tuned FM radio.

b. Audio transmission connecting speaker stereo jack to audio source: For hearing better sound, you may connect it to your computer, ipod or mp3 player using a speaker jack. The audio of your music players get transmitted to your nearby radio.

It comes as a pack of parts kit and can be easily assembled if you can follow the silkscreen indicators (labels) and have beginning experience with a soldering iron. You will need to read the resistor bands or use a multimeter to determine the resistor sizes. The kit operates with a 3-9V power supply.

Features:

Frequency Range: 88-108MHZ (Frequency can be changed by moving the adjustable inductor coil).
Operating voltage: 3V-9V.
Transmission range: The transmission range depends upon the length of antenna used. We send a simple 20cm long wire that should transmit signal around 10m inside your room. The signal can be transmitted ever far with longer antenna of length around 50cm. It can transmit up to 100m in open space.

Kit package contains:

Electret microphone.
Transistor (Q1)- S9018.
R1- 2.2K
R2- 22K
R3- 2.2K
R4- 33 Ohm
R5- 33 Ohm
C1- 0.1uF(Code- 104). Read here how to interpret capacitor code.
C2- 0.1uF (Code- 104)
C3- 680pF(Code- 681)
C4- 30pF(Code- 30). This capacitor contributes to the FM transmission frequency.
C5- 10pF(Code- 10)
C6- 30pF(Code- 30). Coupling capacitor connected to the antenna of the kit.
C7- 30pF(Code- 30)
C8- 0.1uF(Code- 104)
Inductor(L)- 0.1uH (5.5Turns coil). This contributes to the FM transmission frequency.
Antenna- A short wire, 20cm long.
PCB
9V battery connector
Stereo speaker jack