Replacement S8 Bulb for Standard Ray Box, 12V 24W Biology_Microscopy Large-format hydrostatic balance sized for

Large-format hydrostatic balance sized for buoyancy

the medium-strength option for classroom investigations into magnetic poles and field-line geometry

using a 5cm sphere with detachable hemispherical cups that lift away to test for residual charge

sized as the heaviest gauge in the line for high-current electromagnet windings and resistance-vs-length investigations

Replacement S8 Bulb for Standard Ray Box, 12V 24W Biology_Microscopy Large-format hydrostatic balance sized forDouble contact bayonet S8 bulb rated 12V 24W, just over 1. 75 inches end to end with a 9 16 inch socket diameter, sized as the matched replacement for the PH0602A ray box.