Regulated AC/DC Power Supply, 6V/12V 5A Glass Flasks_Erlenmeyer Flasks Cover-protected 10-ohm 4A single rheostat

Cover-protected 10-ohm 4A single rheostat with constantan winding on a 200x56mm tube and 4mm safety socket terminals

and core layers detach one by one for geology instruction

designed to hold visible iron-filing field lines and support side-by-side magnet-strength comparisons in mechanics labs

Five removable sections separate the enlarged ear into outer

Integrated tongue and dentition at 2x life size supports combined teaching of oral cavity anatomy

Regulated AC/DC Power Supply, 6V/12V 5A Glass Flasks_Erlenmeyer Flasks Cover-protected 10-ohm 4A single rheostatMid current 6V 12V regulated AC DC bench supply at 5A with overload and short circuit protection, the lighter duty counterpart to the 10A unit for routine bench circuit experiments.