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eexperto
May 09, 2008, 05:10 PM
hi,
i am looking for circuit diagram for a 27 to 49mhz transmitter, probably ones that use upto to transistors and a crystal. I will use it with PCM for my micro heli.

Can some one point me in the right direction

Thanks

Peter Seddon
May 10, 2008, 06:49 AM
Try http://home.nordnet.fr/~fthobois/

There might be some sites here as well http://homepages.ihug.co.nz/~atong/

regards Peter

eexperto
May 10, 2008, 02:10 PM
thanks
didnt find what i am looking for but quite a wealth of other info on these website. marked in favs

fredhs
May 12, 2008, 04:29 AM
Hi,

http://members.shaw.ca/novotill/TinyRcCars/index.htm (based on the TX2B IC) : 2 transistors, could be modified for your purposes

http://www.ece.uvic.ca/~ece499/2002b/group05/hardware.html -- possible a circuit suitable for your application

http://web.telia.com/~u85920178/tx/cw-am_00.htm

and another 2-transistor (+ modulator) solution: http://www.virtualx.50megs.com/27MHz2.htm

Warm regards,

Fred