What are the differences between the Oscilloscope models 2465+ 2465A+ and 2465B?

What are the differences between the Oscilloscope models 2465+ 2465A+ and 2465B?

There were a multitude of changes between the original 2465 and the 2465B.
Changes between the 2465 to 2465A:

• Auto Setup
• Save and Recall Setups
• Write Protection for Saved and Sequenced Setups
• Cursor Measurements on Delayed-sweep displays
• Elapsed-time record embedded in firmware
• Increase in bandwidth from 300 MHz to 400 MHz (350 MHz in 2465A)
• 2 mV/div Vertical sensitivity to probe tip at full bandwidth
• Rise time improvement from 1.17 ns to 1 ns
• Two independent B triggers for single- or Dual-channel dual-delay measurements (with CTT Option)

Changes between the 2465A to 2465B:

• Standard probes changed from P6136 to P6137
• Rise time improvement from 1 ns to .875 ns
• Parametric Measurements: An additional button labeled "MEASUREMENT" was added to the front panel. By pushing "MEASUREMENT" and one additional button mapped with numbers around the vertical mode buttons, you can automatically measure several commonly used parameters:
  1. Frequency
  2. Pulse Width
  3. Rise Time
  4. Fall Time
  5. Time Interval A to B
  6. Voltage

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