Narrow-Angle Glass Prism, 25° x 77.5° x 77.5° Subcategory_Wash Bottles sized for visible-time-scale RC charging

sized for visible-time-scale RC charging and capacitor-driven momentary lamp-flash experiments

The apparatus is open at both ends and is supplied unfilled

this sonometer carries brass and steel wires across a 114cm wooden box with two millimetre rules

Used to extend a galvanometer's range to 0

Drives gel electrophoresis and other elevated-voltage experiments at 70V DC up to 300mA through a pair of safety sockets

Narrow-Angle Glass Prism, 25° x 77.5° x 77.5° Subcategory_Wash Bottles sized for visible-time-scale RC chargingMid apex 25 x 77. 5 x 77. 5 glass wedge prism, the apex continuing the wedge deviation series for systematic angle versus deviation comparison across geometries.