This SPEC-2 is a production model, Serial # VF3900030M, manufactured June 1975
it was sent to the United States for photography.
One owner, purchased at U.S. Pioneer, 75 Oxford Drive, Moonachie, NJ
12 amp fuse (schematic), Rear panel says 500W, 900VA.
Weight is 52.0 LBS on my bathroom scale.
Box (not original, there was no box when I bought it) contains:
SPEC-2 Operating Instructions (12 pages)