Edwin Armstrong's Radio Parts

Origin
Edwin Armstrong was an electrical engineer who first created the regenerative circuit, which amplified radio signals by looping and creating positive feedback, keeping the signal strength stable. He also created the superheterodyne circuit, allowing more selective radio receivers to be made. He finally solved the problem of static interference on amplitude modulation (AM) systems by changing the signal frequency, pioneering the field of FM transmissions.

Effects
When installed in a radio-enabled device, it increases the strength and transmission speed of any message. It also allows that device and a specific receiver to communicate on another radio spectrum unreachable by normal means, resulting in total privacy for the users.