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MW, SW and Other Radio Transmitter

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A very simple AM voice transmitter

A very simple AM voice transmitter

The transmitter goes together in about 10 minutes, and is small enough to fit in the palm of your hand. Depending on the antenna, it can send voice and music across the room, or across the street.

http://sci-toys.com/scitoys/scitoys/radio/am_transmitter.html

WLW 500KW Transmitter Schematic

WLW 500KW Transmitter Schematic

http://hawkins.pair.com/wlw500schematic.shtml

Micro Power AM Broadcast Transmitter

Micro Power AM Broadcast Transmitter

74HC14 hex Schmitt trigger inverter is used as a square wave oscillator to drive a small signal transistor in a class C amplifier configuration

http://ourworld.compuserve.com/homepages/Bill_Bowden/page6.htm#amtrans.gif

Micropower AM band radio station

Micropower AM band radio station

This simple transmitter offers surprisingly good signal quality.

http://www.wenzel.com/pdffiles/amxmit.pdf

AM modulated CW transmitter

AM modulated CW transmitter

http://www.intio.or.jp/jf10zl/a2tx.htm

AM transmitter

AM transmitter

need no power supply

http://www.intio.or.jp/jf10zl/PLTX.htm

AM Transmitter

AM Transmitter

http://www.zen22142.zen.co.uk/Circuits/rf/amtx.htm