Hi all, I have an old plate exposure unit that has decided to only light up when it feels like it. The worrying part is that it's seems to feel like it less and less. It's a Gemini 425 but I'm assuming they would all work in a fairly similar fashion. So question one: Anyone know what's wrong or had a similar problem? Question two: Are they cheap and simple to fix? You can buy second hand units on eBay for less than $100 so I wouldn't want to spend much on it. I'm tipping Chock will let me know what's wrong by the time I wake up tomorrow........... Thanks in advance to any and all with input.