I never did like the Wago-style connectors.
This is just what I thought they'd do.
It looks a lot like a "backstabber plug failure", doesn't it?

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The MC cable minus the ground seemed to be made this way!, ..... sometime in the late 60's or into the 70's... Was this ever ok?

It still is OK. It's type AC cable. You can see the paper filler (not mylar) sticking out of the connector, and the tiny ground wire (correctly) wound back up the outside of the armor.
This is newer than you think.
We didn't have Speedlok connectors or Wagos back then. (We had lots of "Whackos", though) [Linked Image]



[This message has been edited by electure (edited 05-17-2004).]