ive been working on this fm transmitter from this author:
http://www.youtube.com/watch?v=F-m3M2yh5XM&feature=feedu
and schem:
https://sites.google.com/site/lonewolfscircuits/sitefiles/SingleTransistorFMTransmitter_DEMO.JPG
for the life of me i just cant get it working. for the resonance, im shooting for about the middle of the dial. 100pF and about .01uH. ive done hours of experimenting with different caps, coils, variable caps, and adjustable coils. ive tried using fixed values and tuning the radio. ive fixed the radio and tried tuning the circuit. i cant even get anything if i clip the output directly to the antenna of my fm radio. really hoping someone can aim me in the right direction!!
http://www.youtube.com/watch?v=F-m3M2yh5XM&feature=feedu
and schem:
https://sites.google.com/site/lonewolfscircuits/sitefiles/SingleTransistorFMTransmitter_DEMO.JPG
for the life of me i just cant get it working. for the resonance, im shooting for about the middle of the dial. 100pF and about .01uH. ive done hours of experimenting with different caps, coils, variable caps, and adjustable coils. ive tried using fixed values and tuning the radio. ive fixed the radio and tried tuning the circuit. i cant even get anything if i clip the output directly to the antenna of my fm radio. really hoping someone can aim me in the right direction!!
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