The "New" Diagnostics Tool

[oldstuffrunsbetter]

Or rather, the Diagnostic Center. Welcome to the AC-Delco ST-210 Diagnostic Tune-Up Center. A friend gave this to me for free over the weekend. His Dad had bought it from a garage going out of business many years ago.

The service manuals that came with this tool went back as early as 1966. Thus, I'm sure this is a rather old beast.

While I haven't checked it out too completely, it appears to be a pretty cool tool. As you can see, its in pretty good shape. It even has a red leather cover to protect the entire top of the unit.

I really like the holster specifically built for the timing gun.

Would anyone have any information about this tune-up unit?

Thanks! -Dan