Tantalus cup Telephone station plant Telescope with reading scale Tesla. Apparatus for high frequency Tesla's transformer Theodolite Thermoelectric cell Thermoelectric couple Thermoionic tube Thermometer to measure heat radiation The tent camera obscura Thomson. Inductive repulsion Thomson's galvanometer Thomson's astatic galvanometer with scale Toothed wheel interrupter

Top Torsional pendulum Tourmaline Transformer Tube with cross Tuning-fork on resonance-box Tyndall's apparatus Tyndall's tube Universal equinoctial sundial Universal galvanometer Universal lens holders U-shaped tube for liquids of different gravity