Carbon Electrodes in Rubber Stopper for Hoffman Voltameter, 8cm Build to Order Cast-metal base mounts a heavy-duty

Cast-metal base mounts a heavy-duty electromagnet-driven fork at ~80Hz

Pairs 100mm of length with 25mm faces on a polished acrylic equilateral prism

sized to mount alongside a tone generator for converting electrical signals into audible tones during sound-wave demonstrations

Dovetail-jointed hardwood seven-place test tube support holds tubes up to 13 mm in diameter upright during classroom chemistry and benchtop work

Carbon Electrodes in Rubber Stopper for Hoffman Voltameter, 8cm Build to Order Cast-metal base mounts a heavy-dutyReplacement 8cm carbon electrodes pre mounted in a leak proof rubber stopper for the CH0740B Hoffman Electrolysis Apparatus, sized for ammonia solution decomposition work.