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Magnetic Compass Both Sides Glass
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Magnetic Compass Both Sides Glass

(HL-1132)
3/4" Dia with needle pivoted between top and bottom glass plates without dial: diameter 18mm. Aluminium case. B) Compass for Reflection/Tangent

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Magnetometer Vibration
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Magnetometer Vibration

(HL-1133)
Consisting of a polished box fitted with leveling screws and having back and front sliding doors. The stirrup holding the magnetis suspended by a fibre. A strip of mirror glass is fixed on the base of the box.
A) Aluminium
B) Brass

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Model of Dynamo
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Model Of Dynamo

(HL-1134)
1/2" aluminium wheel red painted is fitted with a screw to a base which is driven by a rubber belt. When this wheel is moved, electromagnet produces AC/DC.

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Model of Telephone Set
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Model Of Telephone Set

(HL-1136)

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Newton Color Disc
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Newton Color Disc

(HL-1139)
Disc Size 6" & 8"

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Plum Line Brass with Hook for Thread
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Plum Line Brass With Hook For Thread

(HL-1140 )

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Pendulum Simple
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Pendulum Simple

(HL-1141)
Consists of a cast iron bob of 2" dia with chuck nut for suspension of cord supplied with retort stand of size of base 8"x5" size of rod 24"x3/8" with special clamp for holding the bob.

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Poission Ratio of Rubber Apparatus
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Poission Ratio Of Rubber Apparatus

(HL-1143)
Consisting of a cycle rubber tube 1/2m long fitted with a small pointer at one lowest end and at upper end cork with a hole is fitted with clamp.
A) Full meter scale
B) Extra superior Heavy Stand Full meter tube

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Bell Demonstration
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Bell Demonstration

(HL-1144)
The base is having two terminals for giving current to the bell. When 6 VDC current is applied, the bell starts ringing.

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Optical Bench Double Rod
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Optical Bench Double Rod

(HL-1150)
It consists of two metallic rods(one rod is engraved in mMS) supported by heavy cast iron feet, provided with 4 metal riders.
A) 4riders, 2 Slow Motions, Lens Holders, pins.
B) -do- Superior quality.
C) -do- Both rods covered with brass graduated pipes.
D) -do- 150CM Long 0-128 A-Type
E) -do- 150CM both rod covered with brass pipe.
F) -do- Both S.S. Rod.

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Research Optical Bench
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Research Optical Bench

(HL-1151)
Research Optical Bench
(PHYSILAB ResearchOptical Bench Model)
The bed is heavy cast iron with a strong control rib, throughly seasoned and aged before machining and griding of its upper surfaces. Total length 170cm. with a machined full length platform for the scale.The scale is from lifetime stainless steel fitted on its machined platform on the bed,Divided in mms to a length of 170cm.Accuracy of calibration 0.01%
Lythe type 170cm long with accessories, Assembly 4 riders slit.

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Rheostats
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Rheostats

(HL-1152)
For use as series resistors or potentiometers. Open type slide wire type with a variety of resistance and current carrying capacity. Copper-nickle alloy wire is oxidised to provide perfect insulation. Three 4mm. socket terminals are provided. Supports are made of metal/bakelite.
Diameter 43mm.

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Rheostats Single
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Rheostats Single

(HL-1153)
With protected cover, newly designed, wounded with heavily oxidised resistance wire upon a tube. Fitted with 4mm. safety socket terminals. Resistance 10% compared to nominal value.
Resistance Ohms Current Amp
10 4
10 5.6
33 2.2
33 3.1
100 1.25
100 1.75
330 0.7
330 0.95
1000 0.4
1000 0.5

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Post Office Box, Plug Type
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Post Office Box, Plug Type

(HL-1154)
Plug type, in polished wooden box with hinged lid and panel to show circuit connections. Coils of constantan wire double silk covered are wound non0inductively. Three pairs of ratio arms are each 10, 100, 1000 ohms and resistance arms contains 16 coils from 1 to 5000 ohms with infinity plug. Total value 11, 110 ohms. Two spring keys having contact for battery and galvanometer fitted. Accuracy of coils 100 to 500 ohms 0.05% and of the rest coils 0.1%

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Resistance Box, Plug Type
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Resistance Box, Plug Type

(HL-1155)
For accurate work, in polished wooden box and panel figured in white. Split brass contact blocks hold precision cut, interchangeable plug having moulded black fluted tops. Coils of constantan wire, double silk covered are wond co-efficient. Accuracy 0.1%.
Range In Ohms Total Ohms No of Coils
1-50 110 4
1-100 210 9
1-500 1110 12
1-1000 2110 13
1-5000 11110 16
1-10000 21110 17

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