Oscilloscope, Model EI-803, 30 MHz Material_Rubber with a keeper bar bridging

with a keeper bar bridging the poles in storage

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

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

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

3 glass features a spout and white graduations for general chemistry and laboratory measurement

Oscilloscope, Model EI-803, 30 MHz Material_Rubber with a keeper bar bridgingHigher 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.