The Tektronix 5A23 is a simple/low cost amplifier plug-in for 5000-series scopes.
Voltage range is only selectable in decade steps (and variable gain control) instead of the usual 1-2-5 sequence.
- frequency response: DC to 1.5 MHz
- calibrated deflection sensitivity: 10 mV/div to 10 V/div
- deflection sensitivity accuracy: 3%
- input impedance: 1 MΩ in parallel with 47 pF
- maximum input (DC + peak AC): 350 volts