He was an engineer and toolmaker. Those do and build things then report findings.

The plasma tube has a mechanical component to it. The talk of RF online is odd, what would it grab onto?

> The challenge of the work is finding the right combination of frequenices, RF and audio rate, which will setup standing waves inside some part of the organism, in an attempt to 'devitalize' the organism's normal biological activities.

Destruction is also possible but devitalization is preferred.