Ruhmkorff's coil

Ruhmkorf coil with sliding secondary coil. Incomplete.
With the sliding secondary coil the high tension can be regulated.
Written on label by hand: Diametre 5
Longeur 15mm
Beincelle(?) 15mm maxima(?)
4 Volts e 13(?) Ampere

Data

Inventory Number: 

ELE59

Instrument Categories: 

Places

Location: 

Μεγάλη του Γένους Σχολή, Κωνσταντινούπολη - Megali Genous Scholi of Constantinople

Origin: 

Μεγάλη του Γένους Σχολή, Κωνσταντινούπολη - Megali Genous Scholi of Constantinople