Main part of Marconi 1.5KW transmitter from 2LO
1922-1925
Main part of Marconi 1.5kW transmitter (minus central rack), 1922, used by the BBC London station 2LO between 1922 and 1925, as rebuilt c.1954.
Filament Wire Associated with the 2LO Transmitter
Filament connecting wire, associated with the 2LO transmitter. Copper wire with dark green rubber tubing. Not contemporaneous with 2LO's working life. Labelled 21.
Filament connecting wire, associated with 2LO transmitter (24)
Filament connecting wire, associated with the 2LO transmitter. Copper wire with dark green rubber tubing, attached to an industrial fuse with an "ASTA 20" certificate. ASTA, the association of short-circuit testing authorities, was founded in 1938. The filament connecting wire is therefore not contemporaneous with 2LO's working life. Labelled 24.
Filament connecting wire; associated with 2LO transmitter (20)
Filament connecting wire, associated with the 2LO transmitter. Copper wire with dark green rubber tubing. Not contemporaneous with 2LO's working life. Labelled 20.
Rheostat, for the 2LO transmitter
Loose parts from speech choke of main part of Marconi 1.5kw transmitter
Filament Wire Associated with the 2LO Transmitter
Filament connecting wire, associated with the 2LO transmitter. Copper wire with dark green rubber tubing. Not contemporaneous with 2LO's working life. Labelled 23.
Filament connecting wire, associated with 2LO transmitter. (25)
Filament connecting wire, associated with the 2LO transmitter. Copper wire with dark green rubber tubing. Not contemporaneous with 2LO's working life. Labelled 25.
RF Ammeter: spare for 2LO transmitter (7)
RF Ammeter, made by Marconi. Spare for 2LO transmitter. Labelled 7. Patent number 13852. Serial number 212548. Scale of 0.5 to 20 amperes.
RF Ammeter: spare for 2LO transmitter (9)
RF Ammeter, made by Marconi. Spare for 2LO transmitter. Labelled 9. Patent number 13852. Serial number 260281. Scale of 0 to 15 amperes.
Filament Wire Associated with the 2LO Transmitter
Filament connecting wire, associated with the 2LO transmitter. Copper wire with dark green rubber tubing. Not contemporaneous with 2LO's working life. Labelled 22.
Part of Marconi 1.5kW transmitter (central rack without choke) from 2LO, 1922-1925
1922-1925
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.
Rheostat, for the 2LO transmitter
Loose parts from speech choke of main part of Marconi 1.5kw transmitter
Rheostat, for the 2LO transmitter
A spare rheostat for the 2LO transmitter. Labelled 39.
Hand list description "2LO interconnecting wires" (12)
Interconnecting wire, a component of the 2LO transmitter. Labelled 12.
Hand list description "2LO interconnecting wires" (10)
Hand list description "2LO interconnecting wires." Labelled 10.
Hand list description "2LO interconnecting wires" (11)
Interconnecting wire, a component of the 2LO transmitter. Labelled 11.
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
Spare MT9L valve for 2LO transmitter from Brookman's Park (36)
1929
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 (37)
Spare MR6 valve for 2LO transmitter. Manufactured by Marconi. Serial number 6789. Packed in bespoke wooden crate. Labelled 37.
Rheostat, for the 2LO transmitter
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
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
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
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
Spare MR6 valve for the 2LO transmitter, manufactured by Marconi Company Limited. Packed in bespoke wooden crate.