"micro tube racks"

This wooden machine has a sturdy wooden construction ideal for classroom use.

Bulk syringes to expand your TeacherGeek collection

Map light intensity vs. position for various slit geometries.

Discover advanced concepts of wind turbine technology!

Explore wind energy affordably and easily.

Bulk balsa, chipboard sheets, and dowels for blade making in the classroom.

These kits provide a cost-effective and friction-free system for the study of dynamics.

Versatile, easy to use, and compact precision instrument for measuring α-, β-, and γ-radiation.

Easy and safe way to hold and power your tubes.

Hertz electron tube for quantitative investigations of Inelastic collisions of electrons with inert gas atoms.

Tube holder is made of robust plastic for holding D-series electron tubes. Stand has a wishbone, 360° rotating clamp made of heat-resistant plastic and two base holes for affixing the Teltron Helmholtz Coils. On rubber feet to prevent slipping.

Generate a uniform magnetic field perpendicular to the axis of the Teltron D series tubes.

Highly evacuated electron tube with focusing electron gun and fluorescent screen inclined relative to the beam axis, so that the path of the beam can be seen and the effects of electric and magnetic fields can be studied. The electron beam can be deflected electrically in the electric field of the built-in plate capacitor, and magnetically by using the Helmholtz coil pair (not included). By adjusting the electric field so that it cancels the magnetic deflection, it is possible to determine the specific charge (e/m) and the velocity of the electrons.

High quality and reliable.

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.

Let the Fun Begin!