Oscilloscope, Model EI-803, 30 MHz Material_Rubber providing the more readily oxidized

providing the more readily oxidized electrode that drives current in classic galvanic-cell demonstrations

Universal 2-input NOR gate module with red/green LED outputs and a printed truth table

and a tensioning pulley

5-inch compact and 6-inch long-format units

Life-size elbow joint model shows humeroulnar and humeroradial articulations with supporting ligaments and arm muscle insertions for upper-limb anatomy teaching

Oscilloscope, Model EI-803, 30 MHz Material_Rubber providing the more readily oxidizedHigher bandwidth 30 MHz dual channel oscilloscope, the next step instrument up from the 15 MHz EI 800 for AC signal, waveform, and frequency response work in advanced classrooms.