DIY FM transmitter kit with a battery holder

This is yet another DIY FM transmitter kit. It picks up sound from any audio source and transmits to an FM radio. You can tune your FM receiver within the frequency range of 88-108Mhz. This kit is very much similar to our FM transmitter. It has a CR2032 cell holder that is enough for powering up the kit.

You can use the inductor to adjust the transmission frequency of the kit.

Transmission Range: 10m inside a room and 100m in open space.

Power supply: Works with CR2032 3V cell.

The transmission range depends upon the open area, length of antenna and power.

Soldering is very straight forward. PCB has clear silkscreen that should guide to solder the components on the right spot.

The kit package includes the following components:

1. 1 x 2.2K Ohm resistor
2. 1 x 22k Ohm resistor
3. 1 x 220R Ohm resistor
4. 1 x S9018 transistor
5. 1 x 10pF capacitor
6. 3 x 30pF capacitor
7. 1 x 0.01uF capacitor- code 103
8. 2 x 0.1uF capacitor- code 104
9. 1 x Electret Microphone
10. 1 x SPDT switch
11. 1 x CR2032 cell holder
12. 1 x Inductor (4.5 turns)
13. 1 x 20cm antenna wire
14. 1 x PCB