Jockey Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-12426
Jlab Export is a leading Jockey Manufacturer,and suppliers in India
Jockey (code EL-PL-12426) is a pencil jockey for making a point contact on the wire of a metre bridge, Wheatstone bridge or potentiometer. It has a plated brass contact at the tip, an insulated handle, and a plated brass terminal with a 4 mm socket for the galvanometer lead. It comes from JLab, which manufactures it in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model | JL374/086 |
| Type | Pencil jockey |
| Handle | Insulated |
| Contact | Plated brass |
| Terminal | Plated brass, with 4 mm socket |
| Quality check | Each jockey is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Product code | EL-PL-12426 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Finding the Balance Point
Plug the galvanometer lead into the 4 mm socket and touch the tip on the wire, first near one end and then near the other: the galvanometer should deflect in opposite directions. Close in on the point between them with light touches until there is no deflection at all. On a metre bridge with the unknown resistance X in the left gap and a known R in the right, the balancing length l measured from the left end gives X/R = l/(100 - l).
Tap, Do Not Drag
Press the jockey for a moment only, and lift it before moving it. Dragging it along the wire under pressure scrapes and thins the wire in places, while bridge and potentiometer methods rely on the wire having the same resistance per centimetre along its whole length. Keep the cell key closed only while a reading is taken, so the wire does not warm up and change its resistance mid-experiment.
Related Bridge and Potentiometer Items
- Meter Bridge — one-metre constantan slide wire with 4 mm socket terminals.
- Potentiometer, 10 wire — ten one-metre constantan wires on an aluminium extrusion.
- Moving Coil Galvanometer — centre-zero null detector wired to the jockey.
- Banana Plug Connectors Leads — 4 mm plug leads that fit the jockey socket.
Bridges, wires and meters for the same practicals are in Physics Lab.
Request a Quote
Request jockeys through Add To Cart; for mixed orders with bridges and potentiometers the contact page is quicker. Give quantities and the delivery point.
Last updated: 26 October 2026