[NewVista]

Originally Posted by Dave A

Check this Wikipedia for full model info on what you have and be sure to visit Lab Guy.

http://en.wikipedia.org/wiki/1_inch_type_A_videotape

Well, I see these ones are models 4900 & 5000 making them the first type A's (1965)

They have pretty blue PC boards and were surprisingly made in Chicago and not at Ampex's Silicon Valley Calif facility.