Class B.Tech. Apparatus : Platinum resistance thermometer, galvanometer, one-way key,callender and Griffith Bridge, connecting wires, thermometer.

* Callender And Griffith Bridge   manganin coil accurately calibrated Vernier is attached to the sliding contact  Length of the slide wire is 30 cm Resistance values are 0.1, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 12.8 and 0.15 ohm resistance measurable Accuracy + 0.01%. Optional Accessories: Galvanometer AP-817 ,Abron plug key, single (AP-764-A) platinum thermometer Bridge AP-675a Hypsometer AP-745 thermometer110⁰C AP-942-b  Abron Hot plate AP-743-c or Abron  stove 743-h Tripod stand AC-626-d wire DCC 5 meter AP-970-c Power supply AE-1375-L