Spectrum Tube Holder Type_Tall Form supplied with two 5-inch insulated-handle

supplied with two 5-inch insulated-handle pointer electrodes

Diamond lattice kit with 39 carbon atoms and 60 connectors for building the tetrahedral covalent network that gives diamond its exceptional hardness and optical properties

LED-output photoelectric cell on a 3

supplying a finer-gauge option for precision resistors and standard-cell construction in physics labs

Air-cooled rheostat at 36 ohms and 3A with constantan winding on a 300x44mm vitreous-enameled tube

Spectrum Tube Holder Type_Tall Form supplied with two 5-inch insulated-handleBosshead equipped spectrum tube holder with 4mm safety sockets on a black panel, mounting any 26cm tube to a laboratory stand for spectroscopy demonstrations from any orientation.