It has been just over a year since I restored my first Doctor Who (Bally, 1992), so I guess it is fitting that I'm now finishing up restoring my second. My first Doctor Who was purchased by a local collector and, since I sold it, has been treated to a new layer of clearcoat on the playfield, LEDs, a USB TARDIS, opto improvements, and a host of other upgrades. Just when you think there's nothing else to do to a machine, someone does some more! I'm glad it made its way into good hands.

There was a reason that I restored this machine second. This machine was in much poorer shape than the first and required a bit more work to get it into a presentable state. But with the experience of the first Doctor Who restoration, and now with some additional experience from the two Fish Tales restorations, I thought I may as well finish dealing with the doubles of all my machines and get this Doctor Who back into action.

Having repaired a couple of Doctor Who (Bally, 1992) machines, I've found that the Time Expander mini playfield always needs to be rebuilt. There are two main parts to this:

1. Rebuilding the mini playfield (and main playfield, if necessary) wood edge;
2. Rebuilding the mini playfield gearbox and cleaning the entire assembly.

This is a small write-up of how I approach these repairs and what the end result looks like.

After my World Cup Soccer restoration, I was rearing to go for another. Doctor Who (Bally, 1992), was another machine I had bought at the same time as World Cup Soccer. I had a lot of mixed feelings about Doctor Who as a pinball machine. While I wasn't much of a fan of the TV show or other Doctor Who media, I hadn't played the pinball machine much before and many pinheads insist that it is a really cool game. The mini playfield is the main feature on Doctor Who. It's a section of playfield that rises and sinks to reveal objectives to hit; it is very similar in style to the ball lock area on Jack-Bot (Williams, 1995). Doctor Who definitely looked like more of a technical challenge so I decided to sink my teeth into it and see how far I could get.