The Tektronix 7623A/R7623A Storage Oscilloscope is a solid-state instrument designed for fast writing rate storage applications. The 7623A operates in three display modes—NON STORE, STORE, and SAVE, and has four storage modes— BISTABLE, VAR PERSIST, FAST BISTABLE, and FAST VAR PERSIST. This instrument has three plug-in compartments that accept any 7-series plug-in units to form a highly flexible measurement system.