Small FM transmitter ( wireless speaker) circuit

Published:2011/10/31 3:02:00 Author:May | Keyword: FM transmitter, wireless speaker | From:SeekIC

This circuit consists of transistor BFR34A,and the figure(a) shows its mechanical structure, when it worksat operating point, Uce=12V, Ic=17mA, theoutput power is12mW.Figure (b) is thebasic circuit. The collector's pins are grounded for better heatdissipation. The optimal phase condition of feedback between tmitter and collector isadjustedby coaxial wire. Variable output coupling capacitor is composed of the small thin plate with side length in5mm.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/Amplifier_Circuits-RF/Small_FM_transmitter__wireless_speaker_circuit.html

Print this Page | Comments | Reading(3)