Class B Burette with PTFE Needle Valve Stopcock, 10mL, DIN 385, Borosilicate Glass Subcategory_Test Tubes routing a single input between

routing a single input between two alternative output paths to introduce circuit-control and signal-selection logic

and foot-anatomy teaching

Mid-range single-decade resistance box stepping from 100 ohms to 1000 ohms in 100-ohm increments

Made of borosilicate glass with interchangeable plastic stopper and PTFE key stopcock

supporting comparative measurement of expansion coefficients across different metals

Class B Burette with PTFE Needle Valve Stopcock, 10mL, DIN 385, Borosilicate Glass Subcategory_Test Tubes routing a single input betweenClass B burette in borosilicate 3. 3 glass holds 10mL with PTFE needle valve stopcock measuring 17. 5 inches long for titration applications.