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TUNING FORK (ALUMINIUM)
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Tuning Fork (aluminium)

(HL-1222)
(A) Set of 8 Forks
(B) Set of 13 Forks
 
Made of aluminium alloy rustless

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TUNING FORK SET OF 13
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Tuning Fork Set Of 13

(HL-1212)
Chrome plated with frequency marked, a set of 13 of different frequency from 256C to 512C, packed in velvet lined box.

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TUNING FORKS SET BLUE STEEL
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Tuning Forks Set Blue Steel

(HL-1211)
Set of 8 of blue steel, plain shank, one each of C(256) D,E,F,G,A,B,C (512) in velvet lined box.

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ELECTRICAL VIBRATOR
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Electrical Vibrator

(HL-1210)
For Melde’s and other experiments. A steel rod is clamped near one end through two 4mm terminals. The rod passes through a small solenoid and between the poles of a magnet. Adjustable contact points fitted through a second pair of terminals make alternating connection with an adjustable contact on the rod. The rod has a small hole at one end for the attachment of thread wKPHh passes over a bench mounting pulley and supports a scale pan. For 2v a.c. supplies. With Pulley and clamp, scale pan and instructions.

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Sonometer 3-Wire Pattern
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Sonometer 3-wire Pattern

(HL-1205)
Comprises a hollow wooden resonance box 120 x 12.5 x 10 cms (L x W x H.) Two wooden rules 1 mtr. long subdivided in mms, between fixed bridges over wKPHh wires are stretched. A spring balance 100 x 5 N is fitted on one wire. Tension exerted can thus be measured and also adjustable finely by a wing nut resting against a plate at the end of the apparatus, second wire passes over a pulley and can be loaded as desired, a third wire is given for comparison and its tension adjustable by a wrest pin. The wires are made of rustless steel having uniform density. Distance between fixed bridges is kept 720 mm. Supplied complete with three movable bridges, a set of four wires 1.5 mtr. each. Supplied without weights.

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ELECTRICAL TUNING FORK
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Electrical Tuning Fork

(HL-1209)
On sturdy streamlined base with provision for horizontal or vertical use. Fork is manufactured from selected steel. Prong is 10x25x300mm. Accurate frequency adjustment, chrome plated, vibration rate 60 per second. Electromagnet can work on 6 volts. The amplitude of vibration can vary by sliding the electromagnet inside prongs. Complete with stylet, mirror and counterpoise.

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Spectrometer
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Spectrometer

(HL-1293)
Laboratory Spectrometer offered by us are extensively demanded in the market due to its robust structure that includes telescope & collimator that have fine rack & pinion motion and are mounted on a stable heavy C. I. base with three leveling screws. Customers are eased with the availability of the Student Spectrometer in Brass and Stainless Steel Scale in both the sizes of 15.0 cm (6") and 17.5 cm (7") of protected circle. Moreover, we are listed at the apex in the list of the preeminent Scientific Spectrometer Suppliers in India.

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CROOKES RADIOMETER DOUBLE
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Crookes Radiometer Double

(HL-1202)
Construction is same as above but having two bulbs with 2 sets of vane, when exposed to sunlight the vanes rotate in opposite directions.

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CROOKES RADIOMETER SINGLE
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Crookes Radiometer Single

(HL-1232)
Evacuated glass bulb of approx. 70mm dia having fine pivot at its centre wKPHh supports four light weight vane of mica 10 mm square approximately and blackened on one surface. Mounted on a bakelite stand. When exposed to sunlight or bright lamp the rotor rotates rapidly.

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METAL BLOCK CALORIMETER
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Metal Block Calorimeter

(HL-1233)
For the experimental determination of the specific heat capacity of different metals. Cylindrical metal block, mass 1 kg. Adjusted to an accuracy of ± 2%. Each block is drilled with two holes, a large central hole, 12.5mm diameter, for a special immersion heater and a smaller hole, 7.5mm diameter, for a thermometer of Copper, Brass, Aluminium & Iron.

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Calorimeter Joules Simple
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Calorimeter Joules Simple

(HL-1198)
To determine specific heat of a liquid by electrical method. It comprises a copper vessel 75 x 50 mm fitted with a cork and a heating coil of thin constantan wire. Terminal connectors for electrical connection. Supplied without thermometer

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JOULES CALORIMETER
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Joules Calorimeter

(HL-1217)
For determining of specific heat capacity of liquid by electrical method. Consisting of a nickel plated copper vessel 75 x 50mm size with outer vessel of teakwood fitted with Bakelite top with hole for thermometer. The terminals connected to a coil of wire (for current upto 3 amps) are fitted. Complete with stirrer and outer teakwood vessel but w/o thermometer.

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Calorimeters Copper
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Calorimeters Copper

(HL-1194)
Good quality one piece spinning, rolled rim, polished finish vessel with wooden/bakelite lid fitted with rubber stopper and metal stirrer.
 
  (Ht x Dia) (Ht x Dia)
(A) Copper 75 x 50 mm
(B) Aluminium 75 x 50 mm
(C) Copper 100 x 75 mm
(D) Aluminium 100 x 75 mm

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CALORIMETER SET
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Calorimeter Set

(HL-1225)
A complete set comprising the following. 1 Copper calorimeter 75 x 50mm. 1 Wooden outer box with felt lining 100 x 75mm approx. 1 Sliding wooden cover for outer box. 1 Copper stirrer with loop to fit inside the copper calorimeter. 1 Thermometer holder made of brass removable.

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Calorimeter Set Copper
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Calorimeter Set Copper

(HL-1224)
Copper calorimeter 75 x 50 mm with felt insulation, outer vessel of 100 x 65 mm size with a plastic lid having holes for thermometer & stirrer. A thermometer holder is fixed to the outer vessel. Complete with stirrer.
 
(A) with outer vessel of copper
(B) with outer vessel of aluminium

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