Tektronix Type 310A Portable Oscilloscope 117V AC 50-800Hz For Parts

Tektronix Type 310A Portable Oscilloscope 117V AC 50-800Hz For Parts

The Tektronix Type 310A is a self-contained portable analog oscilloscope introduced in 1959, designed for field and bench use. It features a built-in CRT display with a ruled graticule, a full complement of front-panel controls for vertical amplification, time base, triggering, and calibration, and a rugged teal-painted cast chassis with a carry handle for portable deployment. This unit is being sold AS-IS for parts or repair — it has not been powered up or tested, and no power cord is included.

Specifications & What's Included

• Manufacturer: Tektronix, Inc. — Portland, Oregon, U.S.A.
• Model: Type 310A Oscilloscope
• Year of Manufacture: 1959
• Power: AC, connected for 117V; voltage range 105–125V; convertible to 234V
• Frequency Range: 50–800 Hz
• Display: Analog CRT with illuminated graticule (Scale Illum. control present)
• Front Panel Sections: Vertical Amp (Volts/Div, Input AC/DC), Time Base (Time/Div in M Sec. and µSec.), Trigger (AC/Int/DC, Stability/Trig Level), Calibrator
• Additional Controls: Focus, Intensity, Horizontal Position, Vertical Position, Ext. Trig. Input, Mag ×5/×1, Ext. Horiz.
• Rear/Side Panel: Internal trim pots (Vert. Gain, Off, Cathode, Astro, Mag Center, Ext. Horiz. Gain, Sweep Cal.) accessible via rear access panel
• Power inlet: 3-pin locking AC socket on side panel (no power cord included)
• Form Factor: Portable benchtop with integrated carry handle
• Original release price: $675.00 (1959)
• Included: Oscilloscope unit only — no power cord, no probes, no accessories

Applications

The Tektronix Type 310 series was one of the first truly portable general-purpose oscilloscopes, widely used by engineers, military technicians, and field service personnel throughout the late 1950s and 1960s. Its self-contained design — with all circuitry, CRT, and power supply in one compact chassis — made it a benchmark instrument of its era, suitable for signal tracing, waveform analysis, and troubleshooting analog circuits. The Type 310A is a vacuum-tube instrument dating from the transitional period just before solid-state oscilloscopes became standard, and it is recognized today as a classic piece of Tektronix history. Working examples are sought by vintage test equipment collectors and restorers, and the instrument's robust mechanical construction means parts (knobs, chassis, CRT assemblies, rear panel components) remain useful to those restoring other Type 310-series scopes.