Summary
Remote cut-off tetrode used as an RF amplifier in radios from 1929 until the early 1930s. Manufactured by Marconi Osram Company, England.
This is an English made equivalent to the popular United States UY235.
2.5 volt indirectly heated cathode.
Physical Description
Five pin USA style base. Globe style bulb with top cap.
More Information
-
Collection Names
-
Collecting Areas
-
Acquisition Information
Donation from G. H. Williams, 12 Jun 1973
-
Manufacturer
-
Inscriptions
Bulb: Made in England/MY235/Patented Base: M.O.V Co Ltd
-
Classification
-
Category
-
Discipline
-
Type of item
-
Overall Dimensions
122 mm (Length), 43 mm (Outside Diameter)
-
References
Fin Stewart: History of GEC and the Marconi Osram Valve, 1998, P. 79
-
Keywords