HP Agilent Keysight 3488A / 2 x 44470A Switch Control Unit w 2 Plug-Ins

Hewlett Packard HP 3488A Switch/Control Unit with 3 4472A VHF Switch modules

Hewlett Packard 3488A Switch/Control Unit

Hewlett Packard 3488A Switch Control Unit

Hewlett Packard 3488a Switch/Control with TWO 44474a General Purpose Relay Cards

HP Hewlett Packard Switch/Control Unit-Model 3488A

HP / Agilent 3488A Switch / Control Unit

Hewlett Packard HP 3488A Switch Control Unit w/ 3x 44472A Modules