Comprising a layer of resistance wire wound on wound on vitreous enamelled hexagonal steel tube instead of Porcelain tube to make it unbreakable., heat resistance tube (Porcelain) which is supported by bakelite feet. A sliding contact and three 4 mm socket terminals are provided, one terminal being connected to the sliding contact and the other two to the ends of the winding, enabling the unit to be used as rheostat or potentiometer.
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Max (Amps)
Max (Ohms)
Tube Dia (mm)
Length (mm)
0.01
6.5
4.4
43
200
0.02
5
11
43
300
0.03
4.2
12
43
200
0.04
4.2
20
43
300
0.05
3.3
16
43
200
0.06
3.3
27
43
300
0.07
2.3
56
43
300
0.08
1.6
50
43
150
0.09
1.6
100
43
250
0.1
0.8
160
43
150
0.11
0.8
240
43
200
0.12
0.3
1700
43
200
0.13
0.3
2850
43
300
0.14
1
365
56
300
Note: Other sizes also available on request. Buyer must specify amp. and ohms while ordering.
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