USD 619.00 Maltese Cross Tube S ... tube with divergent electron gun, fluorescent screen and Maltese cross. For demonstrating the straight line propagation of electrons ... Item: U18553

USD 679.00 Maltese Cross Tube D ... beams in field-free spaces by projecting the shadow of a Maltese cross on a fluorescent screen. Also intended for observing the focussing ... Item: U19153 Related Searches: Tube D