Item Specifics:

lab-built Keithley interface lead/custom instrumentation breakout lead!

• Brand: Custome / Keithley Instruments

• Model/MPN: 237-ALG-2

• Type: Triaxial Cable Assembly / Low-Noise Test Lead

• Connector A: 3-Slot Male Triaxial (Triax)

• Connector B: Alligator Clips (Color-Coded: Red, Black, Green)

• Cable Length: 2 Meters (6.6 feet)

• Maximum Working Voltage: 600V Peak (Center to Inner Shield) / 1,300V Peak (Outer Shell)

• Features: Low-Noise Shielding, Original Keithley Factory Heat Shrink Labels

Item Description

Genuine Keithley Model 237-ALG-2 Low-Noise Triaxial Cable Assembly (2-Meter / 6.6 ft)

Up for sale is an authentic, factory-marked Keithley 237-ALG-2 low-noise triaxial cable assembly. This is a premium, high-insulation laboratory test lead designed specifically for sensitive low-level measurements and source-measure unit (SMU) interfacing—not a generic coax conversion or custom modification.

Factory Specifications & Technical Layout:

• Terminations: One end features a heavy-duty 3-slot male triaxial connector with a knurled coupling nut. The opposing end breaks out into three durable, color-coded alligator clips:

• Red Boot: Center Conductor (Signal/Force)

• Black Boot: Inner Shield (Guard)

• Green Boot: Outer Shield (Chassis Ground)

• Cable Length: 2 Meters (6.6\text{ ft})

• Voltage Ratings: Safe up to 600V Peak (center conductor to inner shield) and 1,300V Peak (center conductor and inner shield to outer shell).

• Insulation Resistance: 10^{15}\ \Omega center conductor to inner shield, ensuring extreme data integrity at low currents.

Applications & Compatibility:

This low-level specialty triaxial cable can be used for:

• Keithley SourceMeasure Units (SMUs) including Series 237, 2600B, 6220, 6221, 6487, 6514, and 6517A/B.

• High-precision semiconductor parameter test benches and characterization labs.

• Low-noise, sub-picoampere measurement configurations where standard coaxial cable leakage currents fail.

• Automated switching matrix integration and high-voltage isolation test environments.

Condition:

• Used, excellent laboratory-surplus condition. The outer jacket is supple, free of cuts, kinks, or severe scuffs. The factory heat shrink markings ("KEITHLEY" and "237-ALG-2") are fully legible and intact. The triaxial connector pin is straight and the alligator boot insulation is clean. Please see actual photos to verify condition details.