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Type 545 oscilloscope
Maker - 1985.061.002
Tektronix was founded in 1946 in Portland, OR. Originally, the company was founded to manufacture and sell electronic equipment in general, but after one of the founders, Howard Vollum, designed a more sensitive oscilloscope than what was currently on the market, the company began to specialize in those instruments.
Maker - 1985.061.002
Maker - 1988.058.012.01
Maker - 1989.029.001