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TCG3

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ID = 81919
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Photocell 
Identical to TCG3

Was used by Industrial
Filament
Description

Photocell from pre-WWII. The 3-pin TCG3 believed to be the first in a line of different pin variations.

Other variations based on early technical data includes:

3-pin TCG3 E and TGC3 RE

4-pin TCG3 A and TGC3 RA

Also from pin diagram it is suggested there is a TCG4

 
Information source - - Manufacturers Literature   Electricité Radio Télévision 1938 French book

tcg3_tcv3_fotos_grammont_schema_utilisation.png
TCG3: Livre Electricité Radio Télévision 1938
Patrice Zeissloff

tcg3_tcv3_tcg4_tcv4_fotos_grammont_brochage.png
TCG3: Livre Electricité Radio Télévision 1938
Patrice Zeissloff

Collection of

 
20200516_092517.jpg

TCG3
 

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