The SAGE equipment used in The Time Tunnel and the rest of Irwin Allen's productions was originally owned by 20th Century Fox, and was purchased by the studio from the Air Force sometime prior to 1966. In 1982, the remaining sections of the Duplex Maintenance Console and Simplex Maintenance Console were purchased by Thomas (Woody) Wood, for use in his prop rental business in Sun Valley, CA. Woody worked at Fox in 1966 and for years afterward, and filled in some of the SAGE prop story for me.
Woody told me about rewiring the SAGE equipment, removing large amounts of wire and replacing the neon indicator lamps with incandescent lamps. To create the flashing sequences, motorized rotary switches were used. According to Woody, the rotary switches had to be installed inside the SAGE cabinets, because they made so much noise. Other lamps, not originally neons, were made to flash by replacing them with #455 6.3V flasher lamps. He was also responsible for building the monitor into the SAGE equipment which displayed the rotating Lissajous figures. Immediately beneath the monitor was a signal generator panel, an Eico 377. According to Woody, there was another signal generator inside the console to create the second signal necessary to create the pattern.
Woody's prop house, Woody's Electrical Props has owned the last large sections of the Fox SAGE equipment since 1982, and has been renting them out ever since. He has 4 large slanted panels plus a number of Burroughs B205 tape drives, essentially the same equipment used in The Time Tunnel. His business provided the SAGE equipment for 7 Days, Austin Powers: The Spy Who Shagged Me, Austin Powers: Goldmember and Lost (and probably more). They also worked on the van for E.T., the command center for War Games and built the consoles for Mission Control in Apollo 13. Woody mentioned that Jim Lovell said, on seeing the Mission Control set, that "it was just like being there". The consoles were so detailed that they even had the right labels on them. Another claim to fame for Woody is the clock on the spaceship Icarus, from the original Planet of the Apes, which showed Ship Time and Earth Time.
These pictures were borrowed from Woody's inventory pages, and show his remaining SAGE equipment.