475A
{{Oscilloscope Sidebar |manufacturer=Tektronix |series=400-series scopes |model=475A |summary=Portable 250 MHz dual-trace scope |image=Tek 475 square sin.jpg |caption=Tektronix 475 |introduced=1977 |discontinued=1983 |designers=Leon Orchard;Luis Navarro;Bob Shand;Jim Hinze;Jim Godwin;Les Larson;Steve Tosh;Jim Woo;Ken Holland;Bill Mark;George Ermini;Dennis Braatz |manuals=
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