Had it 2 months ago and then made some rotation changes. And now I can't find it. Its a lunch box size 1949 pp6v6 monoblock. I didn't lend it out, it has to be somewhere in the basement near the molehole. Sure its happened to others, but I only have 3 working amps. 99.9% sure it was not stolen. So wondering what might be your theories for a disappearing amp...and strategy for finding it. However, the thought just occurred to me that perhaps it was galactically/karmic traded it out for a recently found old 40's pp6v6 PA amp...idk?