This is for other Ghostbusters Props that don't fit into the categories above.
Oh I see the “random alpha generator” now… that’s a tough one. Couldn’t find in the Beckman historical collection. I can only assume therefor that it is a component of another product rather than being something standalone, probably a panel (you can see little mounting holes in the corners) off an integrated computer system circa 60s to 70s era.
I spent hours last night looking at Beckman instruments, analog computers, photospectrometers and ultracentrifuges without success. I am convinced its a panel off some sort of analog computer but there's just not enough photos or documentation online

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