Spare Pencil Jockey Manufacturer,Supplier and Exporter in India
Product Code : EL-SI-8027
Jlab Export is a leading Spare Pencil Jockey Manufacturer,and suppliers in India
Spare Pencil Jockey (code EL-SI-8027) is a replacement contact jockey for Wheatstone bridge and potentiometer experiments, with a Bakelite moulded handle, a brass-plated contact, a locating notch and a heavy lock-type brass-plated terminal for the connecting lead. Its large shape is easy to hold during long balancing work. It is supplied without lead and is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Use | Wheatstone bridge and all types of potentiometers |
| Handle | Bakelite moulded; large shape, easy to handle |
| Contact | Brass plated, with a locating notch |
| Terminal | Heavy lock-type, brass plated, for connection with the lead |
| Lead | Not included (supplied without lead) |
| Quality check | Each jockey 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-SI-8027 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Spare Pencil Jockey Used For?
In meter bridge, Wheatstone bridge and potentiometer practicals the jockey is the sliding contact that students touch onto the resistance wire to find the balance (null) point, where the galvanometer shows no deflection. These are core experiments in class 12 physics and first-year college labs, and jockeys are handled so often that labs keep spares to replace worn or broken ones. Touch the jockey down gently and lift it before moving along the wire rather than dragging it while pressed, because scraping the wire changes its cross-section and spoils later readings. Tighten the lead in the lock-type terminal so the connection does not work loose during a set of readings.
Frequently Asked Questions
Which instruments does this jockey fit?
It is intended for Wheatstone bridges and all types of potentiometers, including meter bridge set-ups that use a jockey on a resistance wire.
Is the connecting lead included?
No, the jockey is supplied without lead. A heavy lead with brass clips is listed separately as the Spare Lead and can be added to the same order.
Who manufactures this pencil jockey?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, makes it at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a physics lab equipment manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The jockey is made at JLab’s own works, not bought from a trader, so schools, colleges, dealers and importers can order spares straight from the maker, every piece is visually inspected before dispatch, and repeat orders are simple. JLab exports worldwide and ships to buyers in every region — for example Sweden in Northern Europe, Georgia in Eastern Europe, the Dominican Republic in Central America and the Caribbean, Paraguay in South America and Taiwan in East Asia.
Bridges, Potentiometers and Leads
- Spare Lead — heavy wire lead with U-shaped brass clips at both ends, for connecting this jockey.
- Pencil Jockey — another pencil-shaped sliding contact with an insulated handle.
- Meter Bridge and Pencil Jockey — four-gap metre bridge supplied with a jockey and connecting lead.
- Potentiometer with Pencil Jockey — multi-wire constantan potentiometer for EMF comparison work.
- Potentiometer Single wire — single constantan wire along a metre scale, supplied with pencil jockey and lead.
Browse the complete Scientific Instrument range or all Indian Instruments.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), whether you also need spare leads, and your delivery location through the contact page.
Last updated: 8 October 2026
