On Mon, Apr 5, 2021 at 11:23 PM, Stephen wrote:
Actually, Tektronix had factories in three locations in Europe:
Units with serial numbers starting with 1 were made in Guernsey (Channel Islands)
Units with serial numbers starting with 2 were made in London (UK)
Units with serial numbers starting with 7 were made in Heerenveen (Netherlands)
Unfortunately, there is no way to cross-reference serial numbers between factories; each used their own serialization.
Have a look for the main board number; it should have the form of 670-xxxx-yy and is usually located near the Beam Finder switch.