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
REP-3-61-1
Page with ELECTRONIC TUBES inscription
REP-3-61-2
Electronic tube with marking 6
REP-3-61-3
Electronic tube on a sheet
REP-3-61-4
Electronic vacuum device
REP-3-61-5
Cylindrical black object with contacts
REP-3-61-6
Electronic tube with markings
REP-3-61-7
Two electrical circuits of a triode
REP-3-61-8
Circuit for measuring three-electrode tubes characteristics
REP-3-61-9
Circuit diagram for connecting a four-electrode lamp
REP-3-61-10
Newspaper fragment with educational institution name
REP-3-61-11
Fragment of a publication with inscription
REP-3-61-12
Fragment of a document with school name
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