Hey hey ULA! 

Announcing the Retroleum Nebula – A Spectrum (48) ULA replacement module. (Phew – after many months of tinkering, it feels good to finally get that off my chest!)

The Nebula, as you might’ve guessed, is a small daughterboard that plugs into the Spectrum’s ULA socket and performs the same functions as the original ULA chip. It’ll be a bit cheaper than a second hand ULA, and should last longer ;)

You can read all about it here.