Resistance
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POTENTIOMETER, LINEAR |
| Code:GP - 810.1 |
Mounted on a transparent plastic base 90x90x30mm high together with three colour coded 4mm sockets.
| Type |
Resistance |
| .01 |
100 ohms |
| .02 |
1K ohms |
| .03 |
5K ohms |
| .04 |
10K ohms |
| .05 |
100K ohms |
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REHOSTAT-SLIDING CONTACT |
| Code:GP - 812.1 |
Comprising a layer of resistance wire wound on an insulating, heat resistance tube (Porcelain) which is supported by cast metal 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.
| Type |
Max(Amps) |
Max(Ohms) |
Tube(Dia mm) |
Tube(Length mm) |
| .01 |
6.5 |
4.4 |
43 |
200 |
| .02 |
5.0 |
11 |
43 |
200 |
| .03 |
4.2 |
12 |
43 |
200 |
| .04 |
4.2 |
20 |
43 |
300 |
| .05 |
3.3 |
16 |
43 |
200 |
| .06 |
3.3 |
27 |
43 |
300 |
| .07 |
2.3 |
56 |
43 |
300 |
| .08 |
1.6 |
50 |
43 |
150 |
| .09 |
1.6 |
100 |
43 |
250 |
| .10 |
0.8 |
160 |
43 |
150 |
| .11 |
0.8 |
240 |
43 |
200 |
| .12 |
0.3 |
1700 |
43 |
200 |
| .13 |
0.3 |
2850 |
43 |
300 |
| .14 |
1.0 |
365 |
56 |
300 |
Note: Other sizes also available on request.
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RHEOSTAT SLIDING |
| Code: GP - 813.1 |
Same as Cat. No 812.1 but wound on vitreous enamelled hexagonal steel tube instead of Porcelain tube to make it unbreakable.
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RHEOSTAT, SINGLE TUBE, PROTECTED |
| Code: GP - 814.1 |
Variable upto 345 ohms at 1.2 A rating for use as a series resistor or a potentiometer. Enclosed type, in metal case with windings on porcelain former 350 mm long x 56 mm dia, three 4 mm socket terminals and four mounting lugs tapped.
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RESISTANCE SUBSTITUTIONS BOX |
| Code: GP - 816.1 |
Range 100 ohms to 470K. ohms given by 12 preferred value carbon resistors 100, 220, 470 ohms, 1, 2.2, 4.7, 10, 22, 47, 100, 220, 470 K ohms. Rating 0.5 W continuous, 1 W maximum. In wooden case 125x85x75mm high with rotary selector switch having ON/OFF position and a pair of 4 mm sockets and 19 mm spacing on the top panel.
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RESISTANCE UNIT |
| Code: GP - 818 |
A range of resistance unit based on a high stability metal film element. They offer improved accuracy and robustness. Accuracy 1%.
| Type |
Ohms |
Max V |
Max A |
| .01 |
1 |
1.0 |
1.0 |
| .02 |
2 |
1.4 |
7.0 |
| .03 |
5 |
2.2 |
0.4 |
| .04 |
10 |
3.0 |
0.3 |
| .05 |
20 |
4.4 |
2.0 |
| .06 |
50 |
7.0 |
0.14 |
| .07 |
100 |
10.0 |
0.10 |
| .08 |
200 |
14.0 |
0.07 |
| .09 |
500 |
22.0 |
0.04 |
| .10 |
100 |
30.0 |
0.03 |
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RESISTANCE COILS |
| Code: GP - 819 |
Non-inductively wound on plastic bobbin in transparent plastic tube with two screw terminals adjusted to ± 0.2 % rating 1 W.
Resistance, ohms
| Type |
Ohms |
| .01 |
0.1 |
| .02 |
0.2 |
| .03 |
0.5 |
| .04 |
1 |
| .05 |
2 |
| .06 |
5 |
| .07 |
10 |
| .08 |
20 |
| .09 |
50 |
| .10 |
100 |
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RESISTANCE BOXES |
| Code: GP - 827 |
For use as accurate Potential dividers, ratio arms etc. These units employ high stability resistance elements. They are equally stable for A.C. or D.C. use.
The individual decades are series connected, each having switch position of 0 to 10 and are mounted in line with 4mm socket terminals linked to the ends of the chain and to each inter decade junction. A further earth terminal connect to the metal case. The top panel is clearly marked with the internal connection arrangement and maximum safe current capacity of each decade and the overall tolerance. Housed in robust metal case.
| Type |
Dials |
Range(Ohms) |
| .01 |
Single |
0-1 |
| .02 |
Two |
0-1, 0-10 |
| .03 |
Three |
0-1, 0-10, 0-100 |
| .04 |
Four |
0-1, 0-10, 0-100, 0-1000 |
| .05 |
Six |
0-1, 0-10, 0-100, 0-1000,
0-10000, 0-1MOhms. |
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CAPACITANCE BOXES |
| Code: GP - 829 |
For use as accurate capacitors. These units employ high stability paper & electrolytic capacitors.
The individual decades are parallel connected, each having switch position of 0 to 10 and are mounted in line with 4mm socket terminals linked to the ends of the chain and to each inter decade junction. A further earth terminal connect to the metal case. The top panels is clearly marked with the internal connection arrangement and maximum safe current capacity of each decade and the overall tolerance. Housed in robust metal case.
| Type |
Dials |
Range(µF) |
| .01 |
Single |
0-0.01 |
| .02 |
Two |
0-0.01, 0-0.1 |
| .03 |
Three |
0-0.01, 0-0.1, 0-1 |
| .04 |
Four |
0-0.01, 0-0.1, 0-1, 0-10 |
| .05 |
Six |
0-0.01, 0-0.1, 0-1, 0-10,
0-100, 0-1000 |
Paper Capacitors 0-0.01, 0-0.1, 0-1, 100V DC
Electrolytic 0-10, 0-100, 01000 25V DC
Capacitors
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INDUCTANCE BOXES |
| Code: GP - 831 |
For use as accurate Inductance. These units employ high stability Inductance.
The individual decades are parallel connected, each having switch position of 0 to 10 and are mounted in line with 4mm
socket terminals linked to the ends of the chain and to each inter decade junction. A further earth terminal connect to the metal case. The top panels is clearly marked with the internal connection arrangement and maximum safe current capacity of each decade and the overall tolerance. Housed in robust metal case.
| Type |
Dials |
Range(mH) |
| .01 |
Single |
0-10 |
| .02 |
Two |
0-10, 0-100 |
| .03 |
Three |
0-10, 0-100, 0-0.1H |
| .04 |
Four |
0-10, 0-100, 0-0.1H, 0-1H |
| .05 |
Six |
0-10, 0-100, 0-0.1H, 0-1H,
0-10H, 0-20H |
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DEMONSTRATION METER |
| Code: GP - 842.1 |
A demonstration meter and may be converted to an A.C. Or D.C. Voltmeter or Ammeter with selection of ranges for each mode of operation by using one of a series of interchangeable dials which fit through a slot
in the side of the case. The movement, comprising a high grade moving-coil galvanometer, is housed
within a robust, plastic case and all the working parts are clearly visible through the front and rear glass panels. Scales are marked on both sides of each dial. A zero adjustment permits instrument to be used for centre working. Accuracy 2.5 F S.D.
Dimensions: 320x140x305mm high approx.
Supplied without scales.
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INTERSCALE FOR DEMONSTRATION METER |
| Code: GP - 843.1 |
A plastic panel 313x117mm with sealed moulded box at one end which contains the shunt or voltage multiplier appropriate to the scale.
| Type |
A.C. or D.C. Current |
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Type |
A.C. or D.C. Voltage |
| .01 |
0-10 mA |
|
.01 |
0-5V |
| .02 |
0-50mA |
|
.02 |
0.10V |
| .03 |
0-100 mA |
|
.03 |
0.15V |
| .04 |
0-500mA |
|
.04 |
0.50V |
| .05 |
0-1A |
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| .06 |
0-5A |
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| .07 |
0-10A |
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Note: Other ranges also available on request.
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