[Mr. Carlson]’s Gates BC-250-GY broadcast transmitter is actually pretty small, especially for 1940s-vintage gear. It has a 250 watt output and was used as a nighttime transmitter; AM stations ...

Add an electret mic and about a meter’s worth of solid-core wire and you have yourself an FM transmitter that is good for around 20 meters. There are plenty of ways to build a small FM ...

JDSU has created what it is touting as the world's smallest widely tunable transmitter optical subassembly (TOSA ... providers to change to any wavelength on demand, to pluggable small form factor ...