Spectrum Tubes Deuterium, glass tubes approximately 10-1/4in (260mm) long, central capillary portion approximately 3-1/2in to 4in (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps.
Electric Paint Pen,used as a liquid wire to draw or print graphical circuits, or even as a conductive adhesive eliminating the need for soldering equipment. also work as a conductive adhesive, providing a safer alternative to using soldering irons, 10ml Pen
Salt Bridge, inverted U tube with its ends closed by sintered discs. Length (in)7.5 x Width (in)5.5 x Height (in)1.2, provides a more effective method of making reversible cells then wet filter paper/agar gel methods. Diameter of arms 13 mm, overall width 80 mm, overall height 100 mm
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