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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. | ||
The 7503 project managed by [[Phil Crosby]], and was supposed to be a [[7504]] but with one fewer plug-in. | |||
The 7503 was Tek's first scope to use a [[harmonica connector]] for inter-board wiring. | |||
Prior to this, inter-board wiring had either mainly been point-to-point soldered. | |||
Other approaches were taken on certain instruments, for example the [[7704]], | |||
in which pins sticking out of the chassis mate with holes in the boards that receive the pins and make electrical contact. | |||
==Specifications== | ==Specifications== |