Anyone know or remember the AY-3-8500?
Sadly, I didn't need to look that number up, I still remember it

Remember the original PONG?
I built
this - I was a geek even back then

I'm sure I got the circuit from Everyday Electronics
* and I even think I got the chip from
Watford Electronics - remember those names guys...? (Or am I embarassing myself

)
* We even have an article from Alan Winstanley of Everyday Electroncs
here.