"Janitorial Supplies"

No more trying to chase down the air supply with this apparatus. Now you can buy an air table with an internal air supply for less than the cost of most tables alone.

Every classroom that wants to investigate spectroscopy needs a good-quality spectrum tube and power supply.

This air track provides a frictionless surface that is indispensable for studying the mechanics of linear motion.

Universally applicable, floating, high-voltage power supply with built-in, high voltage resistant transformer to supply the heater voltage for electron tubes. Continuously adjustable high voltage, safe to touch, with passive current limitation and analog voltage display. Unit poles can be connected to protected earth, but it is not center tapped.

Students understand atomic line spectra in a whole new light.

This safe spectrum power supply features encased spectrum tubes.

Dual purpose for Dual Benefits

Low voltage power supply that can be used as a battery eliminator.

Essential supplies to build and measure electric circuits.

Set of 9 cubes, 25 mm side. Supplied in wooden box.

Eliminates the Need for a Separate Power Supply

Build five different power supplies by connecting clip leads to one of the five color-coded terminals.

HYDROSTIK PRO is a convenient hydrogen storage solution to fuel your hydrogen powered devices. You will need a source of hydrogen like the Hydrofill Pro to charge the supplied Hydrostik Pro cartridge with hydrogen.

Inexpensive, compact counter for measuring milliseconds (in conjunction with the free-fall apparatus 470162-756 ). Each count is started and stopped by a signal at the input sockets. The device is automatically reset to zero each time it is restarted. Includes plug-in power supply.

This model shows the internal structure and operating principles of an air cooled two-stroke engine. All parts are aluminum and plastic. Ignition is shown via a small bulb. Carburetor and fuel supply are also sectioned. Hand crank is provided for manual operation. Mounted on a base.

The determination of the gravitational constant ‘g’ is one of the most fundamental and early physical constants students must derive and observe. This kit has a wooden base, 1.1m rod and a movable electromagnet. The electromagnet can be moved anywhere on the rod and is powered by the timer. When the ball is released, the timer is triggered and stopped once the ball has landed on the base for a precise measurement and then calculation of ‘g’. Supplied with manual.