Consist of two identical aluminum rings fixed to the ends on the aluminum rocker arm, a tripod with a needle and a stand.
One ring with a slot.
The beam is mounted on a tripod needle.
The length of rocking arm in the range of 130 to 180 mm
The diameter of the rings is 25 mm

Functional model of a U-shaped steel core transformer, with a bar that closes the clamped field lines, enameled copper coils, on wooden or plastic support.
Power supply and the number of windings in the primary coil - 220 V / 0.3 A and 1400 turns
Power supply and the number of windings in the secondary coil - 60 V / 1 A and 400 turns
Transformer power is 30 W

Portable laser
Green wavelength : 550 nm
Power 5 mw
Stationary or rechargeable battery with included charger

Digital, measuring range: dose: 0.1 μsv – 1 000 μsv
Maximum mass 200 g
Batteries included

A compact instrument containing all the optical accessories for conducting the Newton’s Ring experiment, our microscope is specifically designed for laboratory use.
With top grade optics and precise machining, our Newton’s Ring Microscope is ideal for determining wavelength of sodium light by measuring Newton’s ring diameter.
Consist of a table with a three-edged prism, a collimator tube with a lens and a slit
A telescope with a lens and a moving eyepiece, a micrometer screw, a stand for installing the device on a support.

Set of 5 tubes with H2, O2, Ar, CO2, Ne, with two electrodes at the ends, length about 200 mm.
When applying a high voltage there is an electrical discharge into the gas atmosphere.
Tubes are narrowed in the middle to allow spectroscopic observation of the emission lines
The set should include a high voltage source with adaptable support for connecting the tubes
When connecting the source, there is an electrical discharge through the tube and the internal gas is illuminated
Power consumption : 4,5 W

Binoculars with bak-4 lenses
Anti-reflex coating,
Lens diameter of 40 mm
Minimum magnification 8x
Interpupillary distance in the range of 56 to76 mm
Multiple lens antireflection coating
Central focus
Tripod mount
Lids for lens and eyepiece

Components: plastic or metal support, stator coils or permanent magnets, coil rotors, copper or carbon blade brushes, etc.
All the constructive elements should be visible
The model shall demonstrate the working principle of the generator, of the Alternative current (AC) generator and working principle of the Direct current (DC) generator