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This instrument went through several names. At its [[introduced in 1964|1964]] introduction, it was the '''TU-7'''. | This instrument went through several names. At its [[introduced in 1964|1964]] introduction, it was the '''TU-7'''. | ||
Some early Tek-internal instruments for design, manufacturing, and calibration had TU (Test Unit) nomenclature. | Some early Tek-internal instruments for design, manufacturing, and calibration had TU (Test Unit) nomenclature. | ||
(Other examples include the TU- | (Other examples include the [[TU-75B]] Variac, the TU-?? dim-bulb fixture, and the [[TU-50]] sine/square/pulse generator.) | ||
In 1965, it was renamed '''Type 1M1''' to fit into the letter-series nomenclature like its predecessor. | In 1965, it was renamed '''Type 1M1''' to fit into the letter-series nomenclature like its predecessor. | ||
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<gallery> | <gallery> | ||
File:067-0521-00 1.JPG | |||
File:Tek 1m1 front.jpg | File:Tek 1m1 front.jpg | ||
File:Tek 1m1 right.jpg | File:Tek 1m1 right.jpg | ||
File:Tek 1m1 left.jpg | File:Tek 1m1 left.jpg | ||
<gallery/> | <gallery/> |