Many people think old AM transmitters are worthless. If a high-level, plate-modulated tube transmitter is replaced by a shiny new solid-state transmitter, why should the old one be kept? Heck, you ...

This transmitter is basic but allows transmission of audio to an AM radio. It consists of an RF oscillator operating in the AM broadcast band, together with a modulator stage, which mixes the incoming ...

GatesAir is suspending the sale of new AM transmitters. When a prominent radio engineer passed along word to Radio World that he’d sought a quote from the manufacturer on a new transmitter but was ...

The chances are that many of you will have made an FM “bug” style transmitter, a simple one-transistor oscillator usually driven by a small electret microphone. It’s also relatively straightforward to ...

This low-cost AM transmitter is tunable from 10 to 15 MHz with the help of ½J gang condenser VC1, which determines the carrier frequency of the amplitude modulation transmitter in conjunction with ...

[Simon Orr] wrote in to tell us about his AM transmitter prototype that he plans to put into production in a few months. The build is based on an “Easy AM Transmitter” featured in this Instructables ...

In response to the Nov. 2 letter claiming that new radio antenna towers to be located in the Snohomish valley will cause a health risk: It is simply not true. A report that was submitted to the ...

The CBC's top official in the North says the Yukon government's move to extend the CBC's lease for its AM transmitter in Whitehorse does not necessarily mean the broadcaster will scrap plans to switch ...

MANNHEIM, Germany -- Led Zeppelin's Robert Plant used to tune in a crackly AM signal late at night on the radio he smuggled into the bed as a kid in the United Kingdom: the American Forces Network ...