We’ve seen, periodically, small, colorful “Feinberger Blocks”–officially known as “jumper” blocks. We see these small engineering/circuitry devices a few times throughout Star Trek The Original Series. The first time we see them is in the episode “The Naked Time.
The November 20th, 1964 Final Draft script for “The Cage” written by Gene Roddenberry (from back in that very narrow window of time when the Captain wasn’t named “April” anymore and he wasn’t yet named “Pike,” he was “James Winter”) has some script direction that clarifies what’s going on: From Scene 4: Ship’s Science Officer, MISTER SPOCK, nursing a foot injury, limps onto scene to stand beside Winter, watching the viewing screen, too.
Folks may heard the story of how Gene Roddenberry wanted some salt shakers for “The Man Trap”–which ended up not being appropriate for use as salt shakers–so Gene asked that they be pressed into service as medical and surgical instruments for Doctor McCoy. Gene Roddenberry had this to say in the book The Making of Star Trek by Stephen E. Whitfield & Gene Roddenberry:
Fellow New Voyages fans, this is an update on future adventures from your friends here at New Voyages. If you have been following our facebook page, you’ll know that we recently had our First Annual TREKonderga convention at the studio. It was a big success.
There is a prop we’ve seen occasionally in Star Trek The Original Series that seems to be some type of electronic device used for testing shipboard equipment. This Equipment Tester is first seen very briefly in “The Corbomite Maneuver.” Some unnamed crewmember is using it to check one of the plant-ons on one of the bulkheads in the ship’s corridors:
One prop (well, series of props) we saw from time to time throughout all three seasons of Star Trek: The Original Series was a bunch of trigger sprayers of various sizes with fluids of various “futuristic” medicinal colors. Although they seem a bit dated now, they looked fairly futuristic when trigger sprayers first came out in the early 1960s.