Hey folks, I recently found a 1980s Yamaha PX-55 turntable for $20 and figured I would give it a go. Only issue with it is that its missing the entire headshell. I figured this would be an easy fix as they're (mostly) plug and play.
Now I'm looking at universal headshell and realising I may be SOL. The tonearm connector is as pictured
Seems there's no space for the captive pin 
on this tonearm. Now, I don't have a spare headshell to check... Is that pin removable?
Do I need a different type of headshell/will a universal connector even work with this tonearm?
OR
Will I have to replace the tonearm connector to a universal type in order to get it all working nicely?
Any help is appreciated. Happy to discuss as required. I'm somewhat familiar with electronic repairs but new to turntable repairs, parts and terminology.
Your link lead me to this photo of the connector for the Yamaha headshell. I now have a hint to find what connection type this is so I can narrow it down further. Maybe find some 3rd party headshells.