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The '''Tektronix 7503''' is a 100 MHz 7000-series mainframe with 3 module bays. | The '''Tektronix 7503''' is a 100 MHz 7000-series mainframe with 3 module bays. | ||
In contrast to most other 7000-series mainframes, which have switch mode power supplies, | |||
the 7503 uses a linear power supply. | |||
The 7503 project was managed by [[Phil Crosby]], and was supposed to be a [[7504]] but with one fewer plug-in. | The 7503 project was managed by [[Phil Crosby]], and was supposed to be a [[7504]] but with one fewer plug-in. |