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Inclined Plane (AVI-EE - 509)
Fitted on New-Wood board size 3/4 x 4" with Pan, Big Arc and Iron roller. (a) Reading Telescope: cat no. 1030 Complete with 175 mm objectives Eye piece 10x fitted on heavy base. (b) cat no 1032 -do- as above but special clamp for vertical movement with clamp and scale.
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Tangent Galvanometer (AVI-EE - 510)
Having Brass parts and Permanent magnet compass with bakelite, 4 m.m. socket terminals.
Circular Coil (AVI-EE - 510/1)
Tangent Galvanometer (AVI-EE - 511)
But having aluminium parts, simple magnet compass and brass terminals.
Extra compass for above (AVI-EE - 512)
Rheostats (AVI-EE - 513)
Rheostats, Open type Single tube : Rheostats are made with a variety of resistance & current carrying capacity so as to satisfy every need. They are wound with heavely oxodised eurika resistance wire upon a porcelene tube dia 44 mm aprox. The tube is carrying upon bakalite ridder and the heavy duty sliding contact is of the phospor bronze with brass rod. 4 mm socket terminals are fitted, allowing for rheostat or potentiometer connection. Total resistance and maximum current capacity is marked on the slidder. Total
Permanent current loading should not exceed 75% of the marked values.Accuracy : The actual resistance of Rheostat shall be +20% -5% of the rated resistance as per our resistance chart. (as per ISI specification no. IS : 9051 S. No. 10.3)
TABLE NO. 1
Ube
6"
8"
10"
12"
14"
16"
18"
20”
Length (cm)
15
20
25
30
35
40
45
50
AMPS
Ω
A.
5.0
4.5
6.5
9
11
13
18
B.
4.2
8
12
16
24
26
32
C.
3.3
22
27
33
38
44
D.
2.8
37
52
60
67
E.
2.3
23
34
46
57
70
80
90
100
F.
1.8
55
74
92
110
128
148
165
G.
1.6
75
125
150
175
200
225
H.
1.4
64
96
160
190
220
250
290
I.
1.2
89
135
180
270
315
355
395
J.
1.0
116
235
350
405
460
515
K.
0.8
240
320
400
480
560
640
720
L.
0.6
540
670
800
930
1070
1200
M.
0.5
600
1000
1400
1600
1800
N.
0.4
660
975
1300
1625
1950
2275
2640
2950
O.
0.3
1150
1700
2250
2850
3400
3950
4550
5150
Rheostat (AVI-EE - 514)
Single tube covered (perforated) Same as cat no 1001 but tube dia is 56 mm approx and totaly covered with powder coated zali to protect the rheostat .
5.5
14
17
10
28
42
48
58
19
66
76
86
41
56
71
102
114
47
93
139
185
210
82
120
245
285
325
360
115
170
230
345
450
500
295
365
445
520
590
675
300
700
925
510
676
835
1165
1335
1500
750
1250
2050
2300
840
1650
2070
2500
2900
3350
3750
1350
2100
3600
4380
5100
6000
6570
Rheostat (AVI-EE - 515)
Single tube grooved type with non breakable enameled pipe but These are made with special non breakable vitreous enameled steel tubes. The winding is locked into place with ceramic cement. The tube is carried upon robust enameled die-cast end stands and the heavy duty sliding contact is of the multi leaf phosphor bronze type. nickel plated for corrosion resistance 4 mm scoket terminals are fitted allowing for rheostat or potentiometer connection.
TABLE NO. 3
C.NO
Ohms
Amps
Tube Size in mm
200 x 43
0.9
4.0
8.5
2.5
9.0
1325
300 x 43
280
3.2
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