This apparatus generates a permanent light which is regulated manually. An electric current is transmitted between the two slightly spaced carbon tips, which in turn generates electric light. In order to maintain this light, it is essential that the carbon rods remain at the right distance from each other, which is regulated manually.

Noiz: 
2019/01/25 to 2019/05/05
Jatorria: 

Bergarako Errege Seminarioa (AZT - 0228)

Ikusi gainontzeko pieza gonbidatuak