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CROCODILE CLIP
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Crocodile Clip

(HL-1278)

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ELECTRIC MOTOR WITH NEWTONS DISC
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Electric Motor With Newtons Disc

(HL-1273)
Mounted on a wooden base 900x90x100mm length x width x overall height, workable on 2-4 Volt D.C. With fan blade and Newton’s colour disc.

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MANGANIN WIRE, BARE
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Manganin Wire, Bare

(HL-1239 )
An alloy of manganese, nickel and copper having a low temperature coefficient. The wire is particularly suited to the construction of resistance coil etc., or any application where accuracy of ohmic value is the important factor and the electrical loading is low.
 
  S.W.G.
A 18
B 20
C 22
B 24
D 26
E 28
KPH 5972-F 30

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MORSE KEY AND MORSE SOUNDER
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Morse Key And Morse Sounder

(HL-1277)
Mounted on wood base Morse key has adjustable pivots, variable spring tensions and variable movement & an open construction with twin coils. Adjustment provided on the armature, spring tension and movement.

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NICHROME WIRE, BARE
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Nichrome Wire, Bare

(HL-1245)
A Nickel-chromium-iron alloy specially suitable for high temperature applications such as heating elements, rheostat, etc.125g each reel of following s.w.g.
 
  S.W.G.
A 18
B 20
C 22
D 24
E 26
F 28
G 30
H 32
I 34
J 36

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RESISTANCE COILS round
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Resistance Coils Round

(HL-1276)
In bakelite case with two terminals and values are figured in white. Bobbin non-inductively wound with double silk covered constantan wire. Accuracy ± 0.2%. Individually packed.
 
  Range
A 0.1 to 0.9
B 1 to 10
C 11 to 50
D 51 to 100
E 101 to 500
F 501 to 1000
   
Can be supplied with 4mm socket lock type terminals at an extra cost.

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REVERSING SWITCH
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Reversing Switch

(HL-1265)

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WHEATSTONE BRIDGE 4 GAPS
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Wheatstone Bridge 4 Gaps

(HL-1269)
Open wire type with 4 gaps and bridging strips, mounted on a polished wooden base with box wood rule graduated 0-100cm x 1mm, fitted with 4mm socket terminal for use either with wire or standard 4mm plugs wire and 24 S.W.G. With knife edge jockey.

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JOCKEY KNIFE EDGE
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Jockey Knife Edge

(HL-1266)
For Wheatstone bridge and potentiometer work. Metal knife edge mounted in plastic handle, 90mm long x 12mm dia with terminal at the upper end.

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CONTACT KEY SINGLE
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Contact Key Single

(HL-1240)
A brass C.P. Spring arm with press knob and two brass terminals. All mounted on bakelite base 80x55mm.

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CONTACT KEY DOUBLE
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Contact Key Double

(HL-1267)
A contact arm and three metal studs mounted on a bakelite base with three brass terminals. The centre terminal is common connection to the arm and the two other terminals are connected to the other studs.

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STACKING PLUGS
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Stacking Plugs

(HL-1271)
4mm with screw connection for leads, longitudinal and transverse 4mm holes for extra plug connections, hard plastic insulating body.
 
  Colour
F RED 
G BLACK
H YELLOW

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PLUG LEADS
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Plug Leads

(HL-1254)
4 mm plugs connected by a length of flexible, plastic insulated copper wire. The plugs are stackable.
Colour Red, Black and Yellow.
 
  Length
I 300mm
J 500mm
K 1000mm

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e/m by Zeemans Effect Apparatus
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E/m By Zeemans Effect Apparatus

(HL-1292 )
The apparatus consists of the followings items:-
1. Constant deviation spectrograph 1 Nos.
Calibration range: 4000 Ǻ-7000Ǻ, ± 10 Ǻ
 
2. Constant deviation spectrograph prism ( ì =1.71)1 Nos
 
3. Fabry-Perot Etalon. Clear aperture: 25mm 1 Nos
 
4. Condensing lens with mount and stand 1 Nos
5. Micrometer eyepiece, Range : 25 mm 1 Nos
6. Electromagnet having field strength 10 kilo Gauss at 10mm gap between its pole 1 Nos
7. Power Supply for above electromagnet 1 Nos
8. Neon discharge tubes 2 Nos
9. Wooden Stand with clamp for holding discharge tube. 1 Nos
10. High Voltage transformer to run the abovedischarge tubes 1 Nos
11. Digital gauss Meter with Probe 1 NosC

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Precision Autocollimator
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Precision Autocollimator

(HL-1296)
Precision Autocollimator We bring forth for our clients, a precision engineered range of Precision Autocollimator that is mounted with autocollimators, These prisms can also be oriented either in horizontal or in vertical plane for measurement squareness.
 
(1) Single axis
(2) Double axis
 
Common Features of Precision Auto-Collimator :-
 
1. Objective Focal Length 500mm
2. Objective Clear Aperture 45 mm
3. Eye piece magnification 10x
4. Telescope Magnification 20x
5. Range of Measurements ± 20'
6. Working distance upto 5meters.
For full range of measurement
± 16'
7. Working distance upto 10 meters.
For full range of measurement
±8'
8. Number of division on micrometer 60
9. Least Count of micrometer 2"
10. Precision of setting 1"
11. Accracy over full range of
measurement
2"
12. Reflecting Mirror with base  
 
Specification:-
 
1. Material: ptical glass BSC/BK-7
2. Front surface coated mirror.Coating meterial: Al. with protective coat of SiO.
3. Dia, 50mm; Thicjness: 10mm; 45mm.
4. Front surface optically flat; Surface flatness:λ/4; other face: fine ground
5. Foot span of base: 110mm; width:62mm
6. Bottom and sides are optically ground.
7. Mirror is mounted on the base at 90º ± 2'.

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