The Star Trek.com database lists the “Antimatter converter assembly” and says that this term comes from the second pilot Where No Man Has Gone Before, but I’ve read some transcripts and re-watched the episode and I can’t seem to find where this term is used in that episode. I know later in the series mention was made of a “dilithium crystal converter assembly” which I assume is essentially the same thing, but I’ve never heard of an antimatter converter assembly, at least not in TOS. I’d like to know if anybody here can help confirm or refute the usage of this term. I’m only interested as I am trying to compile a list of all the technical terms related to warp drive that were used in TOS/TAS with the aim of clarifying just how comparable (or not) the tech of TOS/TAS is to later series. Thanks in advance.