HP battery eliminator connectors - found

[Gordon JC Pearce]

Tony Duell wrote:

> 
> It's a kludge, sure. It;s easy to get the pins in the wrong holes, sure. 
> If you can get the right housing, use it. But if you can't it'll get the 
> machine going without any modifications to said machine so you can go 
> back to the origianl state if you want to 

As someone who has never played with much old HP kit, I find myself 
having to ask:

What exactly does this plug do?

Gordon