Oscilloscope, Model EI-803, 30 MHz Base Size_8 x 5" Reel of bare 18 SWG

Reel of bare 18 SWG copper wire totaling roughly 80 feet by mass

5 inches) with one fork carrying an adjustable tuning mass

providing a measurable projection surface for sizing real images formed by lenses and concave mirrors

5-inch female pelvis model demonstrates 9-month pregnancy anatomy and fetal positioning before delivery for obstetrics teaching

supplying replacements when the originals lose loft or split during repeated charging cycles

Oscilloscope, Model EI-803, 30 MHz Base Size_8 x 5" Reel of bare 18 SWGHigher 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.