Yup. That's the one. Design by Mattel, sound by Hanna Barbera.

Articles like this hearken back to those halcyon days of yore where we recorded foley on a nagra, edited on a Steenbeck and played back on a Moviola. Listen to the foley in the beginning of this scene:

Yeah. It's pretty much a dude rustling a bedsheet in front of an RCA every now and then.

Compare and contrast:

It's hella easier doing sound design now than it was back in the 40s, 50s, 60s, 70s, 80s, 90s or 00s. I've got bloody Youtube videos up with 140 tracks on them. But it also means that the mythical art of recording manhole covers has been pretty heavily deprecated.

I'll bet you've never noticed how spare the sound design is in this scene:

That's because the sound design was spare in everything back then. You had dialogue, score, a foley track (maybe) and an effects track (maybe). Damn near everything was either diegetic or score.

But nobody wants to talk about people sitting at their computers all day spotting into pro tools. They want to talk about Ben Burtt banging on cables.