Tektronix 2445B
Options:
022 – Adds two additional P6137 probes
05 – Video Waveform Measurement
06 – Counter/Timer/Trigger
09 – Counter/Timer/Trigger with Word Recognizer; not available with option 11
10 – Adds IEEE-488 GPIB Interface
11 – Rear Panel Probe Power for P6201 and P6202A Probes; not available with option 09.
1R – Rackmount with slide assemblies
1T – Transit Case with telescoping handle and retractable wheels
B1 – Service Manual
B2 – Service Manual for options 05, 06, 09, 10, or 11