Oscilloscope, Model EI-803, 30 MHz Material_Rubber allowing a sodium or filament

allowing a sodium or filament lamp to be aimed precisely onto a spectrometer slit or refraction-cell setup

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

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

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

Regulated 12V output at 2A capacity supports experiments drawing higher current

Oscilloscope, Model EI-803, 30 MHz Material_Rubber allowing a sodium or filamentHigher 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.