Tom Anderson returned to the show to describe how transistors and passives work. We discuss everything from vacuum tubes to diodes to transistors (PNP and NPN) to resistors and capacitors. We search for synonyms among the confusing terminology of cathodes, plates, emitters, anodes, grids, bases, and collectors.

This was a tech heavy episode so little bit of brushing up on terms may be useful before (or after):

Boltzmann constant
Physical constant
Vacuum tube
Diode logic
Diode
Push–pull converter

Transcript.