4" Cast Iron Closed Ring Support Type_Celestial One-meter single-wire potentiometer with 24

One-meter single-wire potentiometer with 24 SWG constantan wire stretched along a millimeter scale

Hand-cranked simple motor model on a 5

the standard low-end Ohm's-law value used in current-limiting and voltage-divider work

storing and transporting tubes between workstations and the sterilizer

Steam-sterilizable polypropylene pipette rack holds 12 pipettes horizontally for bench storage and autoclaving in molecular biology laboratories

4" Cast Iron Closed Ring Support Type_Celestial One-meter single-wire potentiometer with 24Rugged cast iron closed support ring with an integral screw clamp, combining a 4 inch inner diameter and a rod grip from 5 16 to 5 8 inch for holding wire gauze and vessels over heat.