526
The Tektronix Type 526 Vectorscope, introduced in May 1959, is an instrument designed to measure NTSC color television signals. It was replaced by the 520 in October 1967.
The Tektronix Type 526 Vectorscope, introduced in May 1959, is an instrument designed to measure NTSC color television signals. It was replaced by the 520 in October 1967.