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Product -> Electrical & Electronics

Starlac offer wide range of Physics Instruments like Electronics Instruments for Educational Institution like School, Colleges. Starlac Electrical & Electronics Instruments range are Resistance Boxes, Condenser Boxes, Potentiometers, Electronic Cell, Oscilloscope.

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X-Ray Tube model in wooden case   (EE - 686)

Consists of wooden case.


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Complete X-Ray Unit   (EE - 687)

Combined unit with built in x-ray stand, x-ray screen holder, induction coil, working on 12V DC, 6 Amps with X-Ray tube & screen.


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Reflected Cathode Rays Tube   (EE - 688)

One cathode disc at lowest side in front of upper side convex anode which acts as reflector and the cathode disc coated with fluorescent materials is biased so as to receive the ions from anode then the cathode shall glow under the impact. When the current is reversed the glow becomes very bright showing the direct impact of cathode.


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Spectrum Tubes
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Spectrum Tubes   (EE - 689)

These tubes are straight and available in two sizes 20cm & 26cm in length. The electrodes are placed in either side of the tube and connected with fine capillary tube in between. Available with (a) Helium, (b) Neon, (c) Ar, (d) Hydrogen, (e) Oxygen, (f) Nitrogen, (g) Iodine Vapours, (h) Alcohol vapours, (i) Carbon dioxide (j) Carbon Monoxide (k) Chlorine (1) Deuterium (m) Krypton (n) Sulphur (o) Xenon (p) Bromine etc. filled. Suitable for the observation of the typical spectrum of the gas filled in side the tube.


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Spectrum tube on stand with power supply
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Spectrum tube on stand with power supply   (EE - 689/1)


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Spectrum tube on stand without power supply
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Spectrum tube on stand without power supply   (EE - 689/2)


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Positive Tube   (EE - 690)

With perforated anode, showing vividly various properties of positive rays.


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Magnetic Effect Deflection
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Magnetic Effect Deflection   (EE - 691)

Running cathode rays are visible to naked eye by glowing path on fluorescent screen. The deflection of the cathode rays under magnetic field may be demonstrated easily by moving magnet across the same.


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Rectilinear Propagation
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Rectilinear Propagation   (EE - 692)

V shaped tube. To show cathode rays are generated only vertical (lower electrode) irrespective of the anode points (any of two electrodes above).


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Heating Effect Wax Coating
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Heating Effect Wax Coating   (EE - 693)

When cathode rays are focused on wax coated on the outside of the upper round head of cathode ray tube, the wax melts quickly showing heat generated by cathode rays.


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Shadow Effect (Maltese Cross)
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Shadow Effect (Maltese Cross)   (EE - 694)

When the cross is placed in the path of the cathode rays, a sharp shadow is formed. Its sharpness is an indication that the rays are emitted from the cathode in a definite direction and not like from a luminous surface in all direction. It shows that the cathode rays travels in straight line.


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Vacuum Tubes on Stand
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Vacuum Tubes on Stand   (EE - 695)

Vacuum tubes are mounted on a stand with different pressures in them. Gases are added to intensify the luminescence. Tubes are 30 cm long. Works on induction coil or 10KV power supply.


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Geissler's Tubes on Stand
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Geissler's Tubes on Stand   (EE - 696)

Six vacuum tubes of various shapes and designs, and different degrees of vacuum inside showing different discharge phenomenon illuminations and patterns etc. Tubes are mounte in a glass/wooden case with rotary switch for connection of any or the tubes.


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Geissler's Tubes, Set of Six
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Geissler's Tubes, Set of Six   (EE - 697)


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Heating Effect Platinum Foil   (EE - 698)

Upon focusing at a point, cathode rays generate intense heat shown by the red heating of platinum foil.


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