Wheastone Muirhead Bridge Device 1915.

A Wheatstone bridge is a measuring instrument invented by Samuel Hunter Christie in 1833, then improved and popularized by Charles Wheatstone in 1843. It is used to measure an unknown electrical resistance by balancing two branches of a bridge circuit, with a branch containing the unknown component. Beautiful collector's scientific device In good condition. Length 23 cm, width 11.6 cm, height 10 cm, weight 2.421 kg.

- We refuse sales by telephone, the sale will only be made by email or request via Proantic messaging.
- We send our items carefully, with insurance and tracking. Shipping costs by colissimo for Europe Union 25 e.