To me the real vocoder sound is the modified one used by
the usual Düsseldorf suspects
in "The robots".
https://youtu.be/w-Jq7BHtQMA-Only years after hardcore listening I realised, that there are vocoded lyrics also in "Spacelab" - I thought it was just a synthesizer sound. -Back those days, a young friend of mine had heard "The robots" on the radio, and asked, if we had heard that song with chorus line "Peep poop a popot"? -ha! -ha! -ha!
I find the usual vocoder sound cheesy. There are lots of songs with it, but difficult to spot great songs among them. Neil Young's "We r in control" comes to mind.
https://youtu.be/C9ijiFJ8Q0k