The frequencies employed by law enforcement and first responders can be a source of vital information in emergency situations but you can’t tune in using any old radio. But rather than spend big bucks ...
Although the ubiquitous LM386 IC was designed to be used as an audio amplifier, it has a number of undocumented characteristics that can be exploited to create simple radio receiver circuits that ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback