The Tektronix 5A23 is a simple/low cost amplifier plug-in for 5000-series scopes.

Tektronix 5A23N
1.5 MHz low-cost amplifier
Tektronix 5A23

Compatible with 5000-series scopes

Produced from 1971 to 1981

(All manuals in PDF format unless noted otherwise)

Voltage range is only selectable in decade steps (and variable gain control) instead of the usual 1−2−5 sequence.

Key Specifications

Bandwidth DC to 1.5 MHz
Deflection 10 mV/div to 10 V/div, 1−10 sequence, ±3%, and variable control
Input impedance 1 MΩ // 47 pF
Maximum input 350 V DC + peak AC