Economy Electricity Kit for Introductory Electronics Subcategory_Lab Equipment Sets and polished — letting an

and polished — letting an infrared sensor compare emissivity at boiling-water temperature

supplying a finer-gauge option for precision resistors and standard-cell construction in physics labs

two beaker mugs

Borosilicate crown glass prism with refractive index 1

Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed

Economy Electricity Kit for Introductory Electronics Subcategory_Lab Equipment Sets and polished — letting anPlastic cased introductory electronics kit with 10 lamp holders+bulbs, a 6V buzzer, 3 6V motor, 5 DPDT slide switches, a cell holder, and 10 crocodile leads for full class circuit building work.