Talk:531
What support (e.g., documents) do we have for the sentence, "531s with below S/N 7950 have DuMont 5BGP2 instead of Tektronix T533P2." Did 531s ever ship with DuMont CRTs in them? I can't find any evidence of this. 07:02, 31 May 2020 (PDT)
I removed the sentence about the DuMont CRT. Kurt (talk) 07:25, 17 June 2020 (PDT)