Triple-Parallel Metal Pulley Item Type_Weights Single-decade resistance box covering 0

Single-decade resistance box covering 0

51 at 32 by 32mm

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

Speed-controlled 6V motor driving two cams pumps four spring-mass systems at any chosen frequency

5-inch skeleton model provides portable anatomical reference for desktop study and basic bone identification teaching

Triple-Parallel Metal Pulley Item Type_Weights Single-decade resistance box covering 0Three wheel parallel pulley in a metal frame with accurately centered 50mm aluminum wheels, supporting three rope compound arrangements for force distribution experiments.