Greetings:

I am looking for some information on the three pin power cords that were
used, among others, by HP.

On one end is the standard 3-pin 15A 120v line plug; on the other end is an
oval body with three round sockets inside it. It looks like the old TV
cheater cords, but has a third, ground pin.

Does anyone know the name of this connector?

Does anyone know where I could obtain a few? Mouser doesn't have them.

Thanks in advance and 73,

Joe
K3ICO