New page: The Tektronix Type 526 Vectorscope, introduced in 1960, is an instrument designed to measure NTSC color television signals. * [http://w140.com/tek_526.pdf Tektronix 526 Manual (PDF)]
(New page: The Tektronix Type 526 Vectorscope, introduced in 1960, is an instrument designed to measure NTSC color television signals. * [http://w140.com/tek_526.pdf Tektronix 526 Manual (PDF)])