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Tektronix 11A33
150 MHz differential comparator
11A33 front view

Compatible with 11000-series scopes

Produced from 1987 to (?)

Manuals – Specifications – Links – Pictures

The Tektronix 11A33 is a 150 MHz differential comparator plug-in for 11000-series oscilloscopes. It uses an M393 differential amplifier feeding an M377 amplifier.


Bandwidth DC to 150 MHz
Deflection 1 mV/Div to 10 V/Div calibrated in 1% increments
Input impedance 50 Ω, 1 MΩ, 1 GΩ selectable
Differential DC Offset range +/- 1 V at 1 mV/Div
  • Very high resolution calibrated DC Offset (16,000 Div effective screen height)
  • High common-mode rejection
  • Fast overdrive recovery from large input signals