Introduced in 1961

From TekWiki

Tektronix products introduced in 1961 include:

• RM561
• 132
• 133
• 661
• 519
• 945
• 560
• 561
• 50
• 51
• 59
• 60
• 63
• 67
• 72
• 75
• 527
• 175
• 125
• 182B
• 183B