The Tektronix 659 is a PAL/PAL-M color video monitor with a Trinitron tube, introduced in 1972.
Produced from 1972 to (?)
Sister models: 650 (NTSC), 651 (PAL), 652 (PAL-M), 654 (RGB), 656 (SECAM), 658 (NTSC/PAL-M)