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Free

The following free goods are available.


Computers

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Copiers

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Furniture

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Medical/Lab Equipment

Rat Respirator - Free

Harvard Apparatus model 680. Up to 10 cc stroke volume. In good condition.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


Small Animal Respirator - Free

New England Medical Equipment model 121. Up to 80 cc stroke volume. This is a less expensive knock-off of the similar Harvard Instruments respirator.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


YSI Indicating Temperature Controller - Free

Model 73ATD. 0-50 degrees C. with probe. Measures temperature and can control heater or cooler to a set point temperature. Receptacles on back to plug in a heating bath or other heating or cooling unit which the unit switches on or off.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


WPI M707A Microprobe System - Free

Single channel unity gain DC microelectrode amplifier with headstage.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


WPI ISODAM 8A Amplifiers - Free

2 ISODAM amplifiers with probes in rack mount. DC with filtering and variable gain.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


Kopf 1207 Hydraulic Microdrive - Free

Micrometer controlled hydraulic microdrive. Electronic control unit is not functional. One of the older Kopf models.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


Kopf 607W Hydraulic Microdrive - Free

Microdrive with electronic controller. capable of movements of 1 micron. An older model, but works well.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


Kopf 2650 Micropositioner - Free

Kopf started calling these micropositioners rather than microdrives, but the technology of the micrometer driven hydraulic system is the same as they used for decades. This is only about 10 years old, but the electronic drive does not work and would need to be returned to Kopf for repair, perhaps the power supply (?), but that is surely less than buying a new unit.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


Master Therm Immersion thermometer (1000 degrees F) - Free

Stem is immersed in liquid and dial at top reads temperature.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


WPI FD223a Dual differential electrometer - Free

High input impedance unity gain DC amplifier suitable for ion-selective electrodes or other microelectrodes. No capacitance compensation. Two channels with probes.

Robert Linsenmeier - r-linsenmeier@northwestern.edu
(847) 721-7947
Biomedical Engineering

Posted on 8/15/25


Water Bath - Free

Fisher Isotemp water bath model 1546201Q

Heather Carr - heather.carr@northwestern.edu
312-503-1692
BMG

Posted on 7/24/25


Miscellaneous

2 Transportable Liquid Nitrogen Cylinders - Free

Liquid cylinder for cryogenic

Hongjun Park - hongjun.park@northwestern.edu
847-467-3493
Chemical and Biological Engineering

Posted on 6/30/25


Paper & Office Products

Canon Printer Staples - Free

Canon Printer Staples- J1, one box available, unused
Code: 6707A001[AC]

Anya Brodech - anya.brodech@northwestern.edu
847-491-5992
Office of Undergraduate Programs & Advising- SoC

Posted on 5/22/25


Plastic File Holder - Free

Plastic file holder for letter-sized documents and items.

Anya Brodech - anya.brodech@northwestern.edu
847-491-5992
Office of Undergraduate Programs & Advising - SoC

Posted on 5/19/25


Printers & Scanners

No listings


Projectors & AV Equipment

Martin Mac 550 Profile - Free

Four available Martin Mac 550 Profile fixtures available with hanging hardware (no road cases). Power connections are twistlock L5-20 plugs. 3 of the lights potentially still work, but haven't been used in 6+ years. 1 has been looted for some parts, but still has modules (not pictured). Good for parts to keep Mac 700 fixtures alive. Have a various assortment of animation wheels and steel/glass gobos to choose from for the fixtures.

Michael Trudeau - michael.trudeau@northwestern.edu
847-491-5385
Wirtz Center

Posted on 7/11/25


Toner/Ink Cartridges

No listings