QRP AM Broadcast Transmitter Schematic, No Harmonics.

Started by freax, September 30, 2014, 11:30:12 PM

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freax

http://www.geojohn.org/Radios/MyRadios/AMXmitr/AMXmtr.html
Edited 03-10-2014:
Another version: http://www.techlib.com/electronics/amxmit.htm

Spotted this while roaming the web.

I hope someone will be able to build a little exciter for their AM Radios using nothing but discrete components.

Hopefully also there will be AM Broadcasters spring up out of the ground in post-apocalyptia.

Would appreciate someone posting a better schematic or design, something with a low pass filter integrated into the design.

gil

Interesting, thanks. The ideal antenna for something around 1700kHz would be 275ft. Even 100mW could cover quite a bit with a half-wave wire... That might be illegal though. Those part-15 transmitters are basically made to transmit throughout your house. Realtors use them to broadcast info about houses for sale... Park in front and tune to the frequency on the sign...

Gil.