Tektronix 7633 100MHz Analog Storage Oscilloscope Mainframe Chassis For Parts

Tektronix 7633 100MHz Analog Storage Oscilloscope Mainframe Chassis For Parts

The Tektronix 7633 is a 100 MHz analog storage oscilloscope mainframe from Tektronix's highly regarded 7000 series — a modular plug-in platform that was the professional standard in lab and field oscilloscope use from the late 1960s through the 1980s. The 7633 mainframe provides the CRT display, power supply, timebase, and trigger circuitry, accepting up to three 7000-series plug-in modules (vertical amplifiers, timebases, and special-purpose units) to configure the instrument for a wide range of measurement tasks. This unit does not power on and is being sold for parts or repair.

Specifications & What's Included

• Bandwidth: 100 MHz
• Rise time: 5 ns
• Display: Analog CRT with internal graticule
• Storage display modes: Non-Store, Store, Save, Variable Persistence, Bi-stable
• Erase/Photo/Persistence selector present on front panel
• Plug-in slots: 3 (compatible with Tektronix 7000 series plug-in modules)
• Camera output: Yes
• Calibrator outputs on front panel: 1 kHz reference signal at 40 mV, 0.4 V, and 4 V
• Front-panel controls: VERT MODE, TRIG SOURCE, READOUT INTENSITY, GRATICULE ILLUM, CHOP, TRACE ROTATION, STORAGE LEVEL knob, POWER switch
• AC power entry with line filter and fuse block visible at rear
• Teal/gray benchtop portable cabinet with carrying handle
• Three plug-in modules visible in bays in photos (included contents should be confirmed prior to purchase)

Applications

The Tektronix 7000 series was one of the most widely deployed modular oscilloscope platforms in electronics history, used extensively in research labs, university physics and engineering departments, industrial production testing, and military/aerospace electronics work from the late 1960s into the 1990s. The 7633's analog storage capability — allowing a waveform to be captured and held on the phosphor screen — was particularly valuable for observing single-shot or low-repetition-rate events that a conventional oscilloscope would not display usably. The platform's modular plug-in architecture let users reconfigure the same mainframe for different measurements simply by swapping vertical amplifier, timebase, or specialty plug-ins. Today, 7000-series mainframes and plug-ins remain sought after by vintage test equipment collectors, electronics historians, and engineers maintaining legacy systems that were originally aligned and characterized on Tektronix 7000-series instruments. A non-working 7633 chassis is a useful source of parts — CRT assemblies, power supply components, front-panel boards, and mechanical hardware — for technicians repairing other units in the series.