About this photograph
Photograph of a page with an electrical circuit diagram for connecting a four-electrode lamp. The diagram contains an image of the lamp, three batteries labeled "Bs", "Be", "Ba", and connection lines. Below the diagram, the caption reads: "Fig. IV-25. Circuit diagram for connecting a four-electrode lamp."
AI-generated description
Object data
- Photographer
- Eduard Repin
- Medium
- 35 mm black & white
Frames from this film roll
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