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184
D, for any Supply Cirouit up to 220 volts.
Amperes.
Resistance.
Iron Frame.
Aluminium.
List No
Price.
List No.
J 'rice.
8 to 15 16 „ 35 25 „ 45 35 „ 65
3 to 20 ohms. 1-4 „ 10 „ ■9 „ 6 „ "* .i 3 „
41 42 43 44
£ s. d.
3 15 0
4 10 O
5 O 0
6 15 0
51
52 53 54
£ S. d. 4 O 0
4 15 0
5 5 0 7 5 0
Overall Sizes, 22 by 28 by 5 inches.
Approximate Weights : Iron frame, 30 to 58 lbs. ; Aluminium Frame, 23 to 50 lbs.
Special Resistance to order to any requirements. Frames re-wired with tlie above special
wire at short notice.
PORTABLE ARC LAMP RESISTERS.
Specially designed for Lanternists and Cinemato
graphist Exhibitors, to meet the need for a Resistance which will not overheat or break.
Made in two patterns: — A, for 100 or 110-volt Supply, B, for joining in Series with A for use on 200 or 220 volts, thus obviating the frequent carrying of unnecessary weight. To hang on wall or stand on floor, singly or bolted together.
SPECIFICATION.
Coils wound with a special alloy which does not become brittle, the spirals having ample dimensions, and not liable to short-circuit. Slates enamelled, and bedded in box-castings to prevent accidental breakage; rigid polished brass frame, and brass connectors bronzed, polished, and engraved with current capacity. The whole well-finished and of handsome appearance, solidly constructed for hard wear.
STOCK PATTERNS.
A.— For 100 Volt supply. B.-To be added to A for 200 volts.
List No.
To carry
Prices.
List No.
To cany
Prices.
£ s. d.
1
7 amps.
i lb o
11
7 amps.
2 5 0
2
10 „ •
1 10 0
12
10 „
2 5 0
3
15 „
1 10 0
13
15 „
2 7 6
4
20 ,,
1 [12 6
14
20 ,,
2 10 0
5
25 ,.
1 12 6
15
25 „
2 10 0
6
30 .,
1 15 0
16
30 „
2 12 6
7
40 „
1 17 6
17
40 „
2 15 0
Overall Sizes, 10 by 2 by 12 inches. Overall Sizes, 10 by 3 by 12 inches.
Weight, 7 to 10 lbs. Absorbing 50 volts. Weight, 9J to 14 lbs. Absorbing 100 volts.
Other sizes to order. Perforated Metal Shields for cither size, 5s. extra.