test tube stand for sale, brand-new and used.

Lab Chemistry Equipment Lot Set includes: Ring Stands: two stands - One has 4"x 6" base, one has 5"x 8" base - heavy cast iron, black bases with sturdy upright rods Ring Supports: two supports, approximately 4" in diameter, attaches to ring stand to support beakers, flasks, etc. Cast Iron. Burette Clamp: one clamp - metal, attaches to ring stand to hold a single burette, test tube, flask, etc.

NIDEC A34265-10 SLIMLINE TA600DC 172mm X 38mm TUBE AXIAL COOLING FAN, 48VDC 48V DC, 930632 - NEW NO BOX

This is a National Electronics Model NL-2888A High Power Ignitron Tube and test stand. The tube is equivalent to GE Part No. 37207A and is based on original GE design.

Inspector USB Handheld Digital Radiation Alert® DetectorThe Inspector and Inspector Plus are now The Inspector USB!! Now with USB and the included Observer USB Software, you can download your data from the internal memory, set computer alarms, and calibrate your instrument!

This is a beautiful working example of one of the finest tube-testers ever built. It is one of the last of the great Hickoks and has been very lightly used. The roller tube-chart functions properly and has the test-data for many modern tubes not seen on other testers, such as 5687, 5755, 5670.

*** NOS Westinghouse #81 Bulbs *** You are bidding some scarce NOS USA-made #81 lamps. These are ones needed for the proper fuse/overload protection in many Hickok tube testers, including TV-7's. Completely unused.

*** Computerized Cardmatic Conversion/Upgrade for Your Tester! *** Did I say computerized? You bet!

Super nice Hamamatsu R10133 PMT Photomultiplier Tube. This listing is for a PMT with the original Hamamatsu Voltage divider network replaced by a voltage divider

Super nice 2" Hamamatsu R10131 PMT Photomultiplier Tube. This listing is for a PMT with the original Hamamatsu Voltage divider network replaced by a voltage divider for more common use in stand alone scintillator detectors. I then add a Cap and BNC connector so that it is ready to use with a scintillator crystal of your choice.

Super nice 2" Hamamatsu R10131 PMT Photomultiplier Tube. This listing is for a PMT with the original Hamamatsu Voltage divider network replaced by a voltage divider for more common use in stand alone scintillator detectors. These PMTs make an excellent detector for use with Ludlum meters, Gamma Spectacular HV Bias Drivers, and Theremino PMT adapter.