Tektronix Type R 491 Spectrum Analyzer T-Connector

Tektronix Type R 491 Spectrum Analyzer 2-Set Screw Knobs

Tektronix Type R 491 Spectrum Analyzer Power Knob

Tektronix Type 491 Spectrum Analyzer Front Panel Knobs, Controls, and Parts

Tektronix Type R 491 Spectrum Analyzer Clear Connector Cord 11" W/Gold Fittings

Tektronix Type R 491 Spectrum Analyzer Chassis to Rack Mount Frame Bolts

Tektronix Type R 491 Spectrum Analyzer Release Wave Guide

Tektronix Type R 491 Spectrum Analyzer 2-Push on Knobs