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Marconi-Reisz 'Marble' Microphone

Marconi-Reisz 'Marble' Microphone

1927-30
Marconi-Sykes Magnetophone microphone

Marconi-Sykes Magnetophone microphone

1923
Marconi magnetic detector No. 12739 with cover, 1900-1950

Marconi magnetic detector No. 12739 with cover, 1900-1950

1900-1950
BBC Marconi AXBT Microphone & matching desk stand

BBC Marconi AXBT Microphone & matching desk stand

circa 1946
Model Disc Discharger, Marconi Company Souvenir, 1912

Model Disc Discharger, Marconi Company Souvenir, 1912

1912
Marconi magnetic wireless detector

Marconi magnetic wireless detector

1903-1907
Marconi magnetic detector No. 12739 with cover, 1900-1950

Marconi magnetic detector No. 12739 with cover, 1900-1950

1900-1920
Moorside Edge Transmitter Voltage and Current Meters

Moorside Edge Transmitter Voltage and Current Meters

1931
Moorside Edge Transmitter Tuning Coil

Moorside Edge Transmitter Tuning Coil

1931
Vestigial-sideband filter, from Croydon Transmitting Station, 1955

Vestigial-sideband filter, from Croydon Transmitting Station, 1955

1955
Marconi Type HR11 Telegraph Receiving Equipment, c. 1960

Marconi Type HR11 Telegraph Receiving Equipment, c. 1960

1960
McVitie Weston valve collection, Marconi WT Co Round valve, type V24

McVitie Weston valve collection, Marconi WT Co Round valve, type V24

McVitie Weston valve collection, Marconi WT Co., round valve, type N

McVitie Weston valve collection, Marconi WT Co., round valve, type N

circa 1913
Presentation case for model of Marconi's disc discharger [spark regulating device]

Presentation case for model of Marconi's disc discharger [spark regulating device]

1912
McVitie Weston valve collection, Marconi WT Co Catkin valve, type MPT4

McVitie Weston valve collection, Marconi WT Co Catkin valve, type MPT4

1935
McVitie Weston valve collection, Marconi WT Co Round valve, type DEQ

McVitie Weston valve collection, Marconi WT Co Round valve, type DEQ

McVitie Weston valve collection, Marconi WT Co valve, type M.T.1

McVitie Weston valve collection, Marconi WT Co valve, type M.T.1

1919
McVitie Weston valve collection, Marconi WT Co Round valve, type T

McVitie Weston valve collection, Marconi WT Co Round valve, type T

circa 1914
McVitie Weston valve collection, Marconi WT Co Round valve, type T

McVitie Weston valve collection, Marconi WT Co Round valve, type T

1917
McVitie Weston valve collection, Marconi WT Co valve, type TT11

McVitie Weston valve collection, Marconi WT Co valve, type TT11

McVitie Weston valve collection, Marconi WT Co valve, type HL2

McVitie Weston valve collection, Marconi WT Co valve, type HL2

1932
Wade Bequest collection of valves: Marconiphone radio valve

Wade Bequest collection of valves: Marconiphone radio valve

McVitie Weston valve collection, Marconi WT Co Round valve, type V24

McVitie Weston valve collection, Marconi WT Co Round valve, type V24

McVitie Weston valve collection, Marconi WT Co., round valve, type N

McVitie Weston valve collection, Marconi WT Co., round valve, type N

circa 1913
McVitie Weston valve collection, Marconi WT Co valve, type HL2

McVitie Weston valve collection, Marconi WT Co valve, type HL2

1932
Marconi WT Co Round valve, type Q

Marconi WT Co Round valve, type Q

Marconi WT Co Round valve, type Q

Marconi WT Co Round valve, type Q

McVitie Weston valve collection, Marconi WT Co Round valve, type V.24

McVitie Weston valve collection, Marconi WT Co Round valve, type V.24

1916
McVitie Weston valve collection, Marconi WT Co Round valve, type V24

McVitie Weston valve collection, Marconi WT Co Round valve, type V24

1916
Electric Heater in the Style of Coal Fire

Electric Heater in the Style of Coal Fire

circa 1920
McVitie Weston valve collection, Marconi WT Co Round valve, type Q

McVitie Weston valve collection, Marconi WT Co Round valve, type Q

McVitie Weston valve collection, Marconi WT Co valve, type E.44A.

McVitie Weston valve collection, Marconi WT Co valve, type E.44A.

McVitie Weston valve collection, Marconi WT Co Catkin valve, type MPT4

McVitie Weston valve collection, Marconi WT Co Catkin valve, type MPT4

1935
McVitie Weston valve collection, Marconi WT Co valve, type 5RR1L.F.(A)

McVitie Weston valve collection, Marconi WT Co valve, type 5RR1L.F.(A)

McVitie Weston valve collection, Marconi WT Co valve, type E27

McVitie Weston valve collection, Marconi WT Co valve, type E27

cover for Marconi magnetic detector, 1900-1950

cover for Marconi magnetic detector, 1900-1950

1900-1910
Radio broadcast receiver, c.1925

Radio broadcast receiver, c.1925

circa 1925
McVitie Weston valve collection, Marconi WT Co Round valve, type V.24

McVitie Weston valve collection, Marconi WT Co Round valve, type V.24

1919
McVitie Weston valve collection, Marconi WT Co valve, type V24

McVitie Weston valve collection, Marconi WT Co valve, type V24

circa 1919
McVitie Weston valve collection, Marconi WT Co Round valve, type V.24

McVitie Weston valve collection, Marconi WT Co Round valve, type V.24

1919
Marconi - BBC Ribbon Microphone

Marconi - BBC Ribbon Microphone

circa 1940
Electro-dynamic microphone, by H. J. Round, Marconi Wireless Telegraph Company, 1922-1923.

Round Electro-Dynamic Microphone

1922-1923
Marconi Wireless Telegraph Company tetrode KTW63 from National Valve Museum: The KTW63 is a beam or kink-less tetrode for HF and IF amplification in broadcast receivers and replaced the W63. The valve is variable mu designed to have the stage gain controlled by a voltage derived from the final rectified signal.

Marconi thermionic tetrode valve

1930s-1940s
2 Marconi WT Co. valve, type Q, (RMW/B97A - McVitie Weston number), by Marconi Wireless Telegraph Company Limited.

McVitie Weston valve collection, Marconi WT Co Round valve, type Q

Marconi High Frequency telegraphy/telephony Transmitter Type SWB8E, c. 1935, used at the Cable & Wireless Ltd Engineering Training College, at Porthcurno, Cornwall.

Marconi High Frequency telegraphy/telephony Transmitter Type SWB8E

circa 1935
Galvanometer Charge/Discharge (coil missing), Type no. 189

Marconi Wireless Telegraph Company galvanometer

1920s
Marconi WT Co. valve, type V.24, marked 4137, (RMW/B102* - McVitie Weston number), by Marconi Wireless Telegraph Company Limited.

McVitie Weston valve collection, Marconi WT Co Round valve, type V.24