FM Transmitter (#1) [Deleted]

[ElectroMaster]

ElectroMaster submitted a new article:

FM Transmitter (#1) - This circuit is a simple two transistor (2N2222) FM transmitter. No license is required for this tr

This circuit is a simple two transistor (2N2222) FM transmitter. No license is required for this transmitter according to FCC regulations regarding wireless microphones.

If powered by a 9 volt battery and used with an antenna no longer than 12 inches, the transmitter will be within the FCC limits. The microphone is amplified by Q1. Q2, C5, and L1 form an oscillator that operates in the 80 to 130 MHz range. The oscillator is voltage controlled, so it is modulated by the audio signal that is...

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[global_wonda]

Electromaster, how do i connect the variable capacitor C5, cos i wonna design that circuit. thanks.

 

[ElectroMaster]

This resource has been removed and is no longer available.

 

[terance]

what can i use other Transistors...

 

[rameshrai]

great work