transmitter circuit diagram | Electronic Schematic Diagram https://electronicscheme.net Schematic Diagram & PCB Design Wed, 30 Jul 2014 07:55:01 +0000 en-US hourly 1 https://i0.wp.com/electronicscheme.net/wp-content/uploads/2017/05/cropped-transparent_text_effect.png?fit=32%2C32&ssl=1 transmitter circuit diagram | Electronic Schematic Diagram https://electronicscheme.net 32 32 129969089 1.5 Watt FM Transmitter https://electronicscheme.net/15-watt-fm-transmitter/?utm_source=rss&utm_medium=rss&utm_campaign=15-watt-fm-transmitter https://electronicscheme.net/15-watt-fm-transmitter/#comments Thu, 14 May 2009 20:43:41 +0000 http://electronicscheme.net/?p=92 This is a simple, well designed 1.5 Watt FM Transmitter circuit using power transistor 2N2219A. This circuit should be able to cover 1-2 KM range. […]

The post 1.5 Watt FM Transmitter first appeared on Electronic Schematic Diagram.]]> This is a simple, well designed 1.5 Watt FM Transmitter circuit using power transistor 2N2219A. This circuit should be able to cover 1-2 KM range. It use +5-30V power supply to work.

1.5 Watt FM Transmitter circuit diagram

Refer to the above diagram, the input source is an electret condenser microphone (you may try to? use other input sources) and signal gain from the input can be adjusted by using the potentiometer P1. You can easily prepare the PCB by using any PCB editor and apply it to the board by using the ironing method. The coils and the antenna can be designed as a part of the PCB made up of the copper area.

Components List:

R1=220K
R2=4.7K
R3,R4=10K
R5=100ohm		 C1,C2=4.7uF Electrolytic
C3,C4=1nF
C5=2-15pF
C6=3.3pF		 Q1=BC547C
Q2=2N2219A
P1=25K
MIC=Electret Condenser Type

P1 act as condenser microphone volume level. For FM, coil will be small. Use thin gauge enamel magnet wire. the diameter of coil will be a couple mm: use ink tube from pen to form, and try 8-12 turns. Small inductance coils make for much guess work.

Good luck.

The post 1.5 Watt FM Transmitter first appeared on Electronic Schematic Diagram.]]> https://electronicscheme.net/15-watt-fm-transmitter/feed/ 40 92