I don't think I've heard anything of theirs from his tenure.
I used to own ELO II (their second album) on vinyl. That was the first album he played on. It's actually the only ELO I've ever owned and I have no idea what ever happened to that album

I really liked it back then, so it's nostalgic for me, but I don't know if you'd care for it. It fit in with the times - ELP, Pink Floyd, etc. Progressive, long songs - there were only 5 songs on the entire album.