Legacy & Obsolete Test Equipment
233 units in stock across 112 manufacturers — discontinued bench instruments, VME and PMC embedded boards, legacy GPIB interface hardware, and EMC test gear. Spares for systems the OEM stopped supporting. Ships from Pleasant Grove, UT.
3Com (2 units)
ASUS / AAEON (1 unit)
Abaco Systems / Radstone (1 unit)
Abaco Systems / Ramix (16 units)
Abaco Systems / SBS (2 units)
Abaco Systems / SBS / Greenspring (2 units)
Abaco Systems / VMIC (1 unit)
Accton (1 unit)
Acromag (1 unit)
Advantest (3 units)
Aeroflex / Tektronix / CDS (1 unit)
Agilent / HP (1 unit)
Agilent / Keysight (41 units)
Alcatel / Xylan (1 unit)
Alcatel Lucent (1 unit)
Allied Telesis (2 units)
Anritsu (1 unit)
Archive Corporation (1 unit)
Audio Precision (1 unit)
BK Precision (1 unit)
BOC Edwards (1 unit)
BP Microsystems (1 unit)
Bay Networks (1 unit)
Behlman (2 units)
Bosch (1 unit)
Bristol (1 unit)
Cambridge Technology (1 unit)
Cirris Systems (1 unit)
Cisco (1 unit)
Cobham / Aeroflex / Weinschel (1 unit)
Comtech PST (2 units)
Comtrol (5 units)
Critical I/O (1 unit)
Curtiss-Wright (1 unit)
Curtiss-Wright / DY-4 (1 unit)
Curtiss-Wright / Parvus (4 units)
Curtiss-Wright / Systran (1 unit)
D-Link (1 unit)
DDC (1 unit)
DSS Networks (1 unit)
Data I/O (2 units)
Delta (3 units)
Delta Digital Video (1 unit)
Densitron (2 units)
Diamond Systems (1 unit)
Digi (2 units)
Digi International / Milan Technology (1 unit)
Dolby (1 unit)
Dwyer/Omega (1 unit)
DynamicSignals / Kinetic Systems (1 unit)
EDC (1 unit)
EG&G (1 unit)
EMCO (2 units)
ERS Electronic GMBH (1 unit)
ESI (1 unit)
ESS (1 unit)
ETEK (1 unit)
ETS (6 units)
Eaton (2 units)
Edwards / Seiko Instruments (1 unit)
Efratom (1 unit)
Electron Vision (1 unit)
Elenco (1 unit)
Emerson / Motorola (1 unit)
Emerson / Motorola / Force Computers (2 units)
EtherCom (1 unit)
Exfo (3 units)
Extreme Networks (1 unit)
Farnell (2 units)
Fluke (4 units)
Frankonia (1 unit)
GET Engineering (1 unit)
GIGAMON (1 unit)
GenRad (3 units)
Georg Fisher / Signet Scientific (1 unit)
Gnubi (4 units)
Graywacke Engineering (1 unit)
Guildline (1 unit)
HP / Agilent (3 units)
HP/Silicon Graphics (1 unit)
Hammond (1 unit)
Harman Kardon (1 unit)
Honeywell (1 unit)
Honeywell / BendixKing (1 unit)
Huntron (2 units)
IBM (2 units)
IEI Integration (1 unit)
IFI (1 unit)
ILX Lightwave (1 unit)
IXI Technology / Sabtech Industries (1 unit)
Infinera / UTStarcom (2 units)
Intel (2 units)
Intelligent Interfaces (1 unit)
Interphase (2 units)
JDR Microdevices (1 unit)
JDS Uniphase (1 unit)
JDSU (1 unit)
Jedai Networks (2 units)
Keysight / Agilent (4 units)
Keysight / Agilent / HP (9 units)
Keytek (1 unit)
Kikusui (2 units)
Kontron / ICS Advent (1 unit)
Lecroy (2 units)
Marconi / IFR / Aeroflex (1 unit)
Other (2 units)
SOAR (1 unit)
Sanyo (1 unit)
Schneider Electric / AEG / Modicon (1 unit)
Schneider Electric / Invensys / Foxboro (1 unit)
Stanford Research (1 unit)
Tektronix (6 units)
Why This Category Exists
When a manufacturer discontinues an instrument, the instrument does not stop working and the systems built around it do not stop needing it. A test station qualified in 2004 still has to run in 2026, and the board that failed in it was last built two decades ago.
The obvious answer, replace it with something modern, is usually the expensive one. Swapping an instrument inside a qualified ATE station means requalifying the system, revalidating the test program, and in regulated work re-running acceptance. That effort routinely costs more than the original hardware, and in defence and aerospace programs it can add months of paperwork. Sourcing a matching spare keeps the qualified system intact. That is the whole reason this market exists.
What You Will Find Here
This is a deliberately broad category and the inventory reflects that.
Discontinued bench instruments make up a good part of it, including Tektronix 2465B and TAS465 scopes, Fluke PM3084 and PM3092 units, the Fluke 5730A multifunction calibrator, and a long tail of Agilent and HP gear.
Embedded and single-board computing is the other large block: PMC and VME cards from Abaco Systems and Ramix, Curtiss-Wright and Parvus modules, Acromag and Critical I/O boards, and Emerson and Force Computers processor cards. These are the parts that fail inside rack-mounted test systems and are almost impossible to buy new.
Then there is legacy interface hardware, the Agilent E2050A LAN-to-GPIB gateway and 82335B GPIB cards among them, which keep older instruments talking to newer hosts. Plus EMC test gear from ETS, EMCO, Frankonia and Keytek, and older networking equipment that ended up embedded in test infrastructure and now has to stay there.
Part Numbers and Revisions
On embedded boards, revision matters as much as part number. A revision change can alter connector pinout, the firmware the host expects, or the driver that loads at boot. A PMC card with the right base part number and the wrong revision may simply not enumerate in your chassis.
If you are replacing a board in a working system, send us the full part number off the existing card, including revision and any dash number. We will match against that rather than guess from the model family, which is where most mismatches come from.
Condition, Stated Honestly
Condition varies more in this category than anywhere else in our inventory, and we would rather be specific on each listing than make a blanket claim here. Some units are fully tested and calibrated. Others are sold as-is, typically rare boards or system components we cannot meaningfully power up without the host they belong in.
Read the condition note on the individual listing, and ask if it is not clear. Telling you a unit is untested costs us a little; shipping you something that does not do what you assumed costs us more.
Repair and Calibration on Discontinued Gear
Most older instruments were designed to be serviced at board level, and calibration does not depend on the manufacturer still caring about the model. What actually limits a repair is a specific unobtainable part, usually a custom hybrid, a display, or a proprietary ASIC with no equivalent. Everything else is generally fixable.
Send us the model and the symptom before you ship anything and we will give you a straight answer on whether repair makes sense. See repair services → or calibration services →
We Buy Surplus
If a program has ended or a test rack has been decommissioned, send us the list. Discontinued instruments, embedded boards, and spares out of retired systems are exactly what we handle, and equipment that reads as scrap on one asset register is often the part keeping another organization's fielded system alive. Trade-in and surplus purchase →
Frequently Asked Questions
What counts as legacy or obsolete test equipment? +
Anything the original manufacturer has discontinued and no longer supports with parts, repair or calibration. That covers a wide span here: discontinued bench instruments like the Tektronix 2465B and Fluke PM3084, VME and PMC embedded boards from Abaco Systems, Ramix, Curtiss-Wright and Acromag, legacy GPIB and HP-IB interface hardware such as the Agilent E2050A and 82335B, EMC test gear from ETS and EMCO, and older networking equipment still embedded in test racks.
Why not just replace an obsolete instrument with a modern one? +
Because the instrument is usually not the expensive part. In a fielded ATE station or a qualified production line, swapping an instrument means requalifying the test system, revalidating the test program, and in regulated work re-running acceptance. That effort routinely costs more than the instrument did, and in defence and aerospace programs it can mean a paperwork trail lasting months. Sourcing a matching spare keeps the qualified system intact, which is why demand for this equipment does not go away when the manufacturer stops building it.
Are these units tested before they ship? +
It varies by item and we say which on each listing rather than blanketing the category with a claim. Some are fully tested and calibrated. Others are sold as-is, usually where the unit is a rare board or a system component we cannot power up in isolation without the host it belongs in. Check the condition note on the individual listing, and ask us if it is not clear. We would rather tell you the honest state of a unit than have it come back.
Why does the part number revision matter so much on boards? +
On embedded boards especially, a revision change can alter the connector pinout, the firmware the host expects, or the driver that loads. A PMC card with the right base part number and the wrong revision may not enumerate in your chassis at all. If you are replacing a board in a working system, send us the full part number including revision and any dash number off the existing card, and we will match it rather than guessing from the model family.
Can obsolete equipment still be repaired and calibrated? +
Often, yes. Most older instruments were built to be serviced at board level, and calibration does not depend on the manufacturer still being interested in the model. What limits a repair is availability of a specific failed part, usually a custom hybrid, a display, or a proprietary ASIC. Send us the model and the symptom and we will tell you honestly whether it is worth repairing before you ship anything.
Do you buy surplus legacy test equipment? +
Yes. Discontinued instruments, embedded boards, and spares from decommissioned test systems are exactly what we handle. If a program has ended or a rack has been retired, send us the list. Equipment that looks like scrap to one organization is frequently the part keeping another organization's fielded system running.
Hunting a specific discontinued part?
Send us the full part number and revision off the unit you are replacing. If it is not on the shelf we will watch for it, and we see a lot of decommissioned systems.
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