Ingen-Hausz Conductivity Apparatus on Stand Subcategory_Scales and Balances supplying the third-color line for

supplying the third-color line for breadboarded circuits already using black and red on the supply rails

Five color-coded ceramic ring magnets at 46mm diameter mount on a 15cm wooden dowel

multimeter

10-inch vacuum pump plate on an aluminum base with a stopcock and rubber seal

paired with the 750mm black lead to keep wiring color-coded across mid-distance bench setups

Ingen-Hausz Conductivity Apparatus on Stand Subcategory_Scales and Balances supplying the third-color line forStand mounted Ingen Hausz apparatus comparing thermal conductivity of different metal rods through wax coatings that melt at different rates along each rod from the heated end.