Electronic Valve - Brimar, Pentode, Type 6BR7, 1951-1970 Object Reg. No: ST 035927

6.3 V indirectly heated cathode, manufactured by Standard Telephones and Cables Ltd. Radio Receiver Valve Division, Footscray, Sidcup, Kent, England, 1951-1970. Brimar was the brand used by STC on receiving valves.

The 6BR7 is a sharp cut-off pentode designed for use in the input stages of audio amplifiers It has similar electrical characteristics to the 6J7 but is designed to have low hum, hiss and microphony.
Tubular glass bulb on nine pin miniature glass button base with pin protector and with top exhaust tip. Valve is contained in rectangular red and black coloured cardboard box (original carton).
Acquisition Information:
Donation from Mrs M. Kennedy
Discipline: Technology
Dimensions: 25 mm (Height), 75 mm (Width)
Dimension Comment: Dimensions of box containing valve.

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: BRIMAR/(BVA logo)/6BR7/MADE IN/ENGLAND
Three sides of box: BRIMAR/RADIO VALVE/(BVA logo)
Other side of box: (warranty instructions and licence notice)
Manufacturer: Standard Telephones & Cables Ltd (S.T.C.), Footscray, Sidcup, Kent, England, Great Britain, 1951-1970

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