Part of Marconi 1.5kW transmitter (central rack without choke), made by Marconi's Wireless Telegraphy Company Limited, Chelmsford, Essex, England, 1922-1925. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954. Part of Marconi 1.5kW transmitter (central rack without choke) from 2LO, 1922-1925 1922-1925
Loose parts from speech choke of main part of Marconi 1.5kw transmitter Rheostat, for the 2LO transmitter
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Spare MT9L valve for 2LO transmitter. Manufactured by GEC. Serial number 681. In bespoke wooden crate. From Brookman's Park era. Labelled 36. Spare MT9L valve for 2LO transmitter from Brookman's Park (36) 1929
Spare MR6 valve for 2LO transmitter. Manufactured by Marconi. Serial number 6789. Packed in bespoke wooden crate. Labelled 37. Spare MT9L valve for 2LO transmitter (37)
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Interconnecting wire, a component of the 2LO transmitter. Labelled 12. Hand list description "2LO interconnecting wires" (12)
Hand list description "2LO interconnecting wires." Labelled 10. Hand list description "2LO interconnecting wires" (10)
Interconnecting wire, a component of the 2LO transmitter. Labelled 11. Hand list description "2LO interconnecting wires" (11)
Loose parts from speech choke of main part of Marconi 1.5kw transmitter Rheostat, for the 2LO transmitter
Loose parts from speech choke of main part of Marconi 1.5kw transmitter Rheostat, for the 2LO transmitter
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Part of Marconi 1.5kW transmitter, Marconi Company Limited, Chelmsford, 1922. Used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954 incorporating some non-original but contemporary components Part of Marconi 1.5kW transmitter, used by 2LO 1922
Spare MR6 valve for the 2LO transmitter, manufactured by Marconi Company Limited. Packed in bespoke wooden crate. Spare MR6 valve for the 2LO transmitter
Spare MR6 valve for the 2LO transmitter, manufactured by Marconi Company Limited. Packed in bespoke wooden crate. Spare MR6 valve for the 2LO transmitter