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Electronic Valve - Marconi Osram, Tetrode, Type KTW61, 1961 Object Reg. No: ST 032530

Remote cut-off tetrode designed for use in the RF and IF stages of radio receivers. 6.3 volt indirectly heated cathode, manufactured by M.O. Valve Co. England.

The KT in the type number indicates that this is a so-called 'Kinkless Tetrode' where pentode-like characteristics are obtained by the use of suitable screen grid to anode spacing and beam forming electrodes. The W indicates that it is a remote cut-off type.
Shouldered glass bulb on octal base with 7 pins present with top cap. Bulb is cracked.
Acquisition Information:
Unknown from Unknown, 1981
Discipline: Technology
Dimensions: 114 mm (Length), 39 mm (Diameter)

More information

Tagged with: thermionic electron valves
Themes this item is part of: Engineering Collection, Information & Communication Collection
Primary Classification: ELECTRONICS
Secondary Classification: Vacuum Technology
Tertiary Classification: amplification
Inscriptions: Bulb: (illegible)/KTW61/MADE & PATENTED IN ENGLAND
Paper label on base: KTW61
Manufacturer: MO Valve Company, England, Great Britain, 1961

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