Siemens & Halske AG radio valve, 1884-1936

Made:
1884-1936 in Berlin
maker:
Siemens & Halske AG
Radio valve, BO (VT no49) triode, made by Siemens & Halske AG Radio valve, BO (VT no49) triode, made by Siemens & Halske AG

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Radio valve, BO (VT no49) triode, made by Siemens & Halske AG
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Radio valve, BO (VT no49) triode, made by Siemens & Halske AG
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Radio valve, BO (VT no49) triode, made by Siemens & Halske AG, probably Berlin, Germany, 1884-1936

Details

Category:
Electronic Components
Object Number:
1936-129
Materials:
metal (unknown), glass and plastic (unidentified)
Measurements:
overall: 130 mm x 50 mm x 50 mm,
type:
thermionic valve
credit:
Donated by R McVitie Weston