galvanoscope

A good supply of live frogs was kept to hand by the researcher ready to have their legs prepared for the galvanoscope.

In the early days of electrical research, a common method of detecting electric current was by means of a frog's leg galvanoscope.

The telegraph receiver used in the trial was a galvanoscope of Dr. O'Shaughnessy's design and manufactured in India.

Professor Ian "Mac" McClaine invites his friend Sam Loover to his Dorset cottage to view his latest invention, the Brain Impulse Galvanoscope Record And Transfer (BIG RAT).

However, residing in a secret underground laboratory is Mac's latest invention, the "BIG RAT" (Brain Impulse Galvanoscope Record And Transfer), a machine capable of recording knowledge and experience from leading experts in various fields and transferring it to another human brain.