I've seen Steve Charland use that Cheddar while I stayed with him for several days. He was a good friend.
He used it to see if the gates on the 7400 and 7404 chips in the 80 switch matrix were working.
He could recognize the pattern of LEDs.
I would LOVE to own that piece of Steve Charland memorabilia if you wouldn't mind parting with it. I always wondered what happened to his stuff. I assumed that family friends or pin friends helped his wife find a home for them.
Take care,
Chris Hibler
http://ChrisHiblerPinball.com/Contact