I just returned from the music store with this old road warrior where I had it recapped and they discovered and repaired a factory ground error. I did a little research, I believe it to be c. '65 based on appearance and feature set. While new to me in terms of ownership, I am extremely well acquainted with this amp having borrowed it from our bass player for small gigs with my band four bands ago. She contacted me over the summer and asked if I wanted to buy it. I always loved this amp with an abiding passion, LOL, 12 w of killer vibe! So I said, "heckity-yeah! How much?" She said $100 because it needed work. I have a $100 into it for the repairs. That's still darned good for an amp of this quality and vintage! Can't wait to fire it up tonight, but I'm burning daylight and have a honey-do list that needs doing. I'll post more later.