3 Résultats trouvés pour "Fichier:Oscillograph_Duddell_Moving_Coil.png".

Fichier:Oscillograph Duddell Moving Coil.png

Figure 2607 -- Duddell Moving Coil Oscilliograph General view of electromagnet form of Duddell moving-coil oscillograph, showing the oil bath, and electromagnet...


Fichier:Oscillograph Time-Index Generator.png

with Duddell moving-coil oscillograph, consisting of a large rotating light-shutter wheel and a mirror moved by a cam, to draw marker lines on moving film...


Fichier:Oscillograph Cinematograph Camera.png

2622, 2623 -- Interior of cinematograph camera as used on Duddell moving coil oscillograph for obtaining long records. The loose ends of the case are...