US$ 70.00
9A with oxidized constantan winding on a vitreous-enameled steel tube and a phosphor-bronze sliding contact
Bull frog dissection model with open back reveals vertebral column
mechanical-advantage
knock sensor
providing a quick swap-in reference for general-purpose AC-circuit and timing-experiment work
Dual-Range Moving Coil DC Voltmeter, 0-5V / 0-15V Material_Mesh 9A with oxidized constantan windingDual range 0 5V and 0 15V moving coil DC voltmeter at plus or minus 2. 5% accuracy with an inclined face, letting students read both small cell and battery stack voltages on a single instrument.