In this video I show you how to build a 2 watt FM transmitter.
You can buy our 1 mile range small professional UHF transmitter from : www.bug-transmitter.com
This video is for educational use only.
Please check your local licensing laws concerning the legalities of using FM transmitters and when using one please run it into a dummy load and NOT into an antenna.
Parts List
Transistors X3
2 x PN3569
2 x 2N4427/Clone
Variable tuning capacitor x 2
Vintage marconi variable air capacitor measuring 5pF To 40pF
Panasonic 6mm Trimmer Capacitor 6- 50pF ,Genuine high quality by Panasonic, Japan.Part number ECR-HAO50G81
6-50pF
KA2284 Audio Level Indicator Power Level Indicator x 2
Resistors x 7
180ohm
2.2k
22k x 2
39k
47k x 2
Ceramic capacitors x 17
10pf
20pf x 5
33pf
50pf
1nf x 6
100nf x 3
Electrolytic capacitors x 3
220uf
4.7uf x 2
Coils x 6
3 turn X3
5 turn
6 turn
7 turn
BNC Panel Mount Socket Connector 50 Ohm
To-39 heatsink
Led x 2
Schottky diodes
BAT42 x 2
Micro choke x 2
100uH axial
SMT DC Power Square Socket Connector
5 x 2.1mm x 5.5mm
Fibre Glass Copper Clad PCB 100x160mm Double Sided
I cut to size
Common Mode Choke
2MH 40mOhm 2A Coil Wire Wrap Toroid Inductor Common Mode Choke
SMD 3.5mm audio socket
Have fun :)
12 сен 2024