Voltmètre avec boîtier en bakélite (aide scolaire)

ID: s39469
Catégorie: Technique
Sous-catégorie: Autres, Appareils
Emplacement: Nouveau magasin

État: Occasion

Description: The device was used for long-term measurement and recording of electrical voltage. A needle inside the device reacted to voltage changes and recorded them on a paper strip or other recording medium, allowing for monitoring fluctuations over time. Such devices were commonly used in laboratories, power plants, research institutes, or testing facilities. It can be an attractive collector's item or an industrial accessory for a retro or technical-style interior. It is also suitable as an educational tool, vividly demonstrating how electrical voltage was measured in the pre-digital era.

900 Kč / €38