Created page with "The Tektronix Type 552 was a dual-beam scope proposed in 1960. It did not enter production. * Tektronix Type 552 Project Documents <gallery> Tek t..."
(Created page with "The Tektronix Type 552 was a dual-beam scope proposed in 1960. It did not enter production. * Tektronix Type 552 Project Documents <gallery> Tek t...")