Variable Battery Power Supply, Holds Up To (4) D Cells - 1.5, 3, 4.5, Or 6 Volts Dc Power With 4Mm Sockets - Can Be Series Or Parallel, Perfect For Electronics, Physics, Or Even Biology Experiments
Plug Switch - One Way Two Brass Blocks With 4mm Insulated Terminals With Tapered Plug With A Fluted Top Are Mounted On A Wooden Base, An Accurately Tapered Plug With A Fluted Top Fits Into The Tapered Hole Between The Two Blocks, Ensuring Very Low Contact Resistance.
Rheostats - Standard, Resistance 135 Ohms, Max. Current 1.4 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze
Rheostats - Standard, Resistance 16 Ohms, Max. Current 4 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze
Relay Demonstration Unit, Allows The Investigation And Study Of How A Relay Functions, In A Clear And Practical Manner, The Circuit Powering The Coil Is Easily Seen To Be Completely Separate From The Circuit, Coil Input 4-6V Dc Bulb Input Max. 6V Ac / Dc
Resistance Substitution Board 33 Ohms - 10M Ohms, Extremely Useful For All Circuit Applications. Great For Electronics Classrooms Or Labs, Or For Use In Circuits Under Design Or In Testing Conditions, Board Dimensions Are 5 X 3.5 X 2 Inches.