This year I picked up a Heathkit Ignition Scope at a swap meet. It was their first model. While looking online for information I found their next model on Ebay for cheap, so I bought it too. They now work perfectly and are fascinating tools. With the IO-20 I had to make my own cables up. Just lately there has been a bunch posted for sale on Ebay. There is an IO-20 complete with cables for around $65. If anyone was looking for one of these, it is a real bargain.
