Decade Resistance Box Manufacturer,Supplier and Exporter in India
Product Code : EL-DB-1250
Jlab Export is a leading Decade Resistance Box Manufacturer,and suppliers in India
Decade Resistance Box (code EL-DB-1250) is a switched resistance box that sets a known resistance with one to four band switch dials, for bridge, Ohm’s law, galvanometer and AC circuit experiments in school, college and university physics labs. Ranges run from 1 kΩ to 10 kΩ on the single-dial model to 1 Ω to 10,000 Ω on four dials. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Type | Decade resistance box; resistance selected with band switch dials |
| Switches | Band switches with very low contact resistance |
| Panel and case | Bakelite panel mounted in a wooden case |
| Single-dial model | 1 kΩ to 10 kΩ |
| Two-dial model | 10 Ω to 1000 Ω |
| Three-dial model | 1 Ω to 1000 Ω |
| Four-dial model | 1 Ω to 10,000 Ω |
| Fixed resistance box | Also listed, in a Bakelite box; values not stated — specify the value you need |
| Quality check | Each resistance box is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-DB-1250 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Resistance Boxes and Standards?
| Model | How the value is set | Listed values | Other listed details |
|---|---|---|---|
| This decade resistance box (EL-DB-1250) | One to four band switch dials | 1 kΩ to 10 kΩ (one dial) up to 1 Ω to 10,000 Ω (four dials) | Very low contact resistance switches; Bakelite panel; wooden case |
| Resistance Boxes | One to five decade dials | Decades from 0.01 Ω to 10,000 Ω | Dial type; single- to five-dial models; accuracy not stated |
| Standard Resistance | Fixed value per unit | Seven values from 0.001 Ω to 1000 Ω | Aged manganin coils in oil; accuracy 0.05% to 0.005% |
Choose this box for routine circuit and bridge work where a resistance has to be changed quickly over the ohm-to-kilohm range, and where it should match the decade inductance and capacitance boxes on the same bench. The Resistance Boxes listing reaches lower values with up to five dials, and the Standard Resistance is the choice when the reference value must be known to a stated precision.
What Is the Decade Resistance Box Used For?
A decade resistance box gives a known resistance that can be changed in steps by turning a dial, so one box replaces a set of loose resistors. In class 12 physics practicals and undergraduate labs it serves as the known arm of a Wheatstone or meter bridge, as the variable resistor in Ohm’s law and potential divider circuits, and as the high series resistance used to convert a galvanometer into a voltmeter or to find its resistance and figure of merit by the half-deflection method — the kilohm range of the single-dial model suits this work. Paired with a decade capacitance box it sets the R in RC time-constant experiments, with a decade inductance box it completes LCR circuits, and it is a convenient load when tracing diode and transistor characteristics.
The value in use is the sum of all dial settings. Every switched box also has a small residual resistance from its contacts and wiring, which is why very low contact resistance switches matter most at the lowest settings. Turn each dial fully onto a position rather than leaving it between contacts, keep the Bakelite panel clean and dry, and ask JLab for the current rating before passing heavy current through the low-value steps, as overheating a resistance coil changes its value.
What to Specify When Ordering
- Number of dials — one dial (1 kΩ to 10 kΩ) for high series resistances, or two, three or four dials for wider ranges down to 1 Ω.
- Fixed resistance box — state the value if you also need one, as the listing gives none.
- Accuracy and current rating — not stated in the listing; ask for them in the quotation if your tender or experiment needs them.
- Quantity and matching boxes — the minimum order is 10 units; decade inductance and capacitance boxes can go on the same enquiry.
Frequently Asked Questions
What is a decade resistance box used for?
It provides a known, adjustable resistance for Wheatstone and meter bridge experiments, Ohm’s law and potential divider circuits, galvanometer conversion and figure-of-merit practicals, and RC or LCR circuits in school, college and university physics labs.
Which ranges are available?
Four models are listed: one dial 1 kΩ to 10 kΩ, two dials 10 Ω to 1000 Ω, three dials 1 Ω to 1000 Ω and four dials 1 Ω to 10,000 Ω. A fixed resistance box in a Bakelite box is listed as well.
Which model suits converting a galvanometer into a voltmeter?
The single-dial 1 kΩ to 10 kΩ box or the four-dial box, because the series resistance needed is usually in the kilohm range. The exact value depends on the galvanometer and the voltmeter range you want.
Is the accuracy of the box stated?
No, the listing does not give accuracy, current rating or resistance wire. Ask JLab to state them in the quotation for the model you choose.
How does it differ from the Resistance Boxes listing?
Both are dial boxes. This one uses very low contact resistance band switches on a Bakelite panel in a wooden case, with one to four dials up to 10,000 Ω; the Resistance Boxes listing offers one to five dials with decades from 0.01 Ω to 10,000 Ω.
What does an export enquiry need?
The model (number of dials), quantity, destination country and port or city, delivery terms such as FOB or CIF, any packing or labelling needs, and the tender reference if applicable.
Who makes the decade resistance box?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, manufactures it at its works in Ambala, Haryana, India, and quotes for it as the maker.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an Indian manufacturer of physics lab instruments, incorporated in 2017 and operating from Hargolal Road, Ambala, Haryana. The decade resistance box comes from JLab’s own works, not from a trader, so schools, colleges, dealers and importers buy direct from the manufacturer; each box is visually inspected before it is packed, and follow-up orders are handled by the same works. JLab exports worldwide and ships to buyers in every region — for example Papua New Guinea in Oceania, Benin in West Africa, Paraguay in South America, Laos in Southeast Asia and Estonia in Northern Europe. Details for tender buyers are on the JLab lab tenders page.
Related Boxes and Resistors
- Decade Inductance Box — the matching L box with the same band switch construction.
- Decade Capacitance Box — the matching C box for RC and LCR experiments.
- Resistance Boxes — dial-type boxes with one to five decade dials for lower values.
- Standard Resistance — oil-immersed manganin reference resistors for precision comparison.
- Resistance Coil — an economical fixed constantan resistor for student bridge work.
- Slide Wire Rheostats — continuously variable resistance for setting circuit current.
See the complete Decade Box range or the wider Scientific Instrument range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the number of dials, the quantity (minimum 10 units), any fixed resistance value and your delivery location through the contact page.
Last updated: 8 October 2026
