Tektronix Type R 491 Spectrum Analyzer Rack Handles

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 R 491 Spectrum Analyzer Module Model F6128-5

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

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

Tektronix 011-0085-00 DC-12.4GHz 10dB 50 Ohm Attenuator from Type 491 Kit