The Tektronix 7633 Storage Oscilloscope is  a multi-mode storage mainframe which uses a wide variety of plug-ins including logic analyzers, spectrum analyzers, sampling scopes, and of course, oscilloscopes.
This three compartment mainframe has a stored writing rate of 1000 cm/µs with display modes of Store, Nonstore, and Save.
Store modes include bi-stable, variable persistence, fast bi-stable, and fast variable persistence.

• Bandwidth: 100MHz 
  
• 3.5 ns Rise time 5-ns/Div
  
• Fastest calibrated sweep rate
  
• Deflection Factor -determined by plug-in
  
• 5.25-Inch Rackmount height
  
•  Option 003 = EMC Capability.
  Adds special shielding for protection to the instrument when operated in severe EMI environments