Mazda 1R5 heptode valve, 1933-1966

Mazda heptode frequency changer valve, type 1R5 Mazda heptode frequency changer valve, type 1R5

Creative Commons LicenseThis image is released under a CC BY-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Mazda heptode frequency changer valve, type 1R5
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Mazda heptode frequency changer valve, type 1R5
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Mazda heptode frequency changer valve, type 1R5, made by Edison & Swan United Electric Light Company, Ponders End, London, England, 1933-1966

Details

Category:
Electronic Components
Object Number:
1966-125
Materials:
plastic (unidentified), metal (unknown) and glass
Measurements:
overall: 55 mm x 25 mm x 25 mm,
type:
thermionic valve
credit:
From the Ministry of Supply