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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | 'Marconi' Wavemeter Instruction Leaflet | c. 1906 | Marconi's Wireless Telegraph Co. Ltd. | London | Paper. | 98851 |
| View Record | 'Marconi' Tuning Fork | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, copper, nickel, steel, iron. | 87284 |
| View Record | 'Marconi' Tuning Fork Type BS10 | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, copper, nickel, steel, iron. | 69685 |
| View Record | Magnetic Detector | 1907 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, brass, ebonite, bakelite, iron. | 99266 |
| View Record | 18-Inch Induction Coil | 1898 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, brass, ebonite, copper, ivory?, steel. | 81193 |
| View Record | Morse Key | c. 1900 | Marconi's Wireless Telegraph Co. Ltd. | England | Brass, ebonite, mahagony. | 86892 |
| View Record | Variometer And Sliding Capacitor | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, copper, ebonite, nickel, steel. | 44318 |
| View Record | Tuning Condenser With Capacitor Box | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, wood, ebonite, bakelite, celluloid, nickel, plywood. | 48535 |
| View Record | Marconi Crystal Receiver A Type RB3 | 1922 | Marconi's Wireless Telegraph Co. Ltd. | England | Ebonite, bakelite, steel, nickel, brass, paper, assorted metals. | 93260 |
| View Record | Marconiphone Type V2A | c. 1923 | Marconi's Wireless Telegraph Co. Ltd. | England | Mahogany, celluloid, ebonite, bakelite, nickel, steel, glass, assorted metals. | 50144 |
| View Record | 'Marconi' Ammeter | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel?, brass, copper?, nickel. | 62660 |
| View Record | Tuning Condenser | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, ebonite, celluloid, brass, bakelite. | 96057 |
| View Record | Variometer | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, rope, porcelain, mahogany, brass, bakelite. | 96466 |
| View Record | Marconi Bellini-Tosi Direction Finder | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, bakelite, ebonite, steel?, copper. | 78859 |
| View Record | Bone Coherer Support Rod | c. 1900 | Marconi's Wireless Telegraph Co. Ltd. | England | Ivory, nickel?, copper, assorted metals. | 87538 |
| View Record | Framed Marconi Order Slip | Dated 1922 | Marconi's Wireless Telegraph Co. Ltd. | London | Glass, wood, paper. | 14183 |
| View Record | Marconi Receiver CR100 | Mid 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Steel, plastic, nickel, bakelite, perspex, assorted metals. | 81277 |
| View Record | Mobile Television Camera Type BD624C With Electronic Viewfinder Type BD625F | Mid 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Steel, bakelite, assorted metals. | 47261 |
| View Record | 'Marconi' 1˝KW Quenched Spark Gap Transmitter Type QG | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, steel, iron, nickel, porcelain, copper, assorted metals. | 46329 |
| View Record | Four-Second Alarm Type KM1 | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Iron, metal, nickel, glass. | 13115 |
| View Record | Aircraft Wireless Telephone Type AD2 | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | England | Linen, ebonite, glass, wood, plastic?, assorted metals. | 12938 |
| View Record | Variable Resistance Switch For Aircraft Wireless Telephone Type AD2 | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | England | Plastic?, nickel, assorted metals. | 99434 |
| View Record | Emergency Quenched-Gap Transmitter Type 335 | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, iron, copper, ebonite, nickel, glass, steel, assorted metals. | 20374 |
| View Record | 'Marconi' Direction Finder Type 11F | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, ebonite, glass, nickel, plastic?, assorted metals. | 75339 |
| View Record | 'Marconi' Direction Finder Type 11F | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, ebonite, glass, nickel, plastic?, assorted metals. | 54065 |
| View Record | BBC-Marconi Ribbon Microphone | Mid 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Copper, aluminium, bakelite?, assorted metals. | 69070 |
| View Record | Bradfield Leading-In Insulator No.1 | 1910 | Marconi's Wireless Telegraph Co. Ltd. | England | Iron, ebonite. | 13694 |
| View Record | Short Distance Wireless Telephone Set Type TT2 | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, ebonite, bakelite, glass, brass, assorted metals. | 46879 |
| View Record | Aircraft Wireless Telephone Transmitter Type AD1 | 1921 | Marconi's Wireless Telegraph Co. Ltd. | England | Wood, linen, steel, bakelite, ebonite, brass, glass, assorted metals. | 81229 |
| View Record | Marconi Wavemeter Type MC1 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, bakelite, glass, metal?, plastic. | 49948 |
| View Record | Induction Coil | c. 1906 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, wax, brass, ivory?, ebonite, celluloid. | 12640 |
| View Record | Replica Of Parabolic Transmitter For Marconi's Original Beam System | 1920s/1930s | Marconi's Wireless Telegraph Co. Ltd. | England | Wood, copper, brass, steel?, ebonite. | 59943 |
| View Record | Replica Of Parabolic Receiver For Marconi's Original Beam System | 1920s/1930s | Marconi's Wireless Telegraph Co. Ltd. | London | Wood, glass, copper, ebonite, assorted metals. | 40344 |
| View Record | 'Marconi' Direction Finder Type DFM2 | c. 1927 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, ebonite, glass, bakelite, celluloid, steel. | 29821 |
| View Record | Alexandra Palace Mast | 1936 | Marconi's Wireless Telegraph Co. Ltd. | Britain | Iron, assorted metals, oak?. | 65804 |
| View Record | Album of Direction Finder | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Paper. | 34635 |
| View Record | Instruction Manuals For Marconi Crystal Receiver Type 16 | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Paper. | 39535 |
| View Record | Marconi Auto-Alarm Type M | Mid 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Steel, bakelite, glass, assorted metals. | 24207 |
| View Record | Catalogue For Aircraft Wireless Receiver | c. 1921 | Marconi's Wireless Telegraph Co. Ltd. | England | Paper | 32919 |
| View Record | Low Frequency Iron Core Inductance In Wooden Box | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Iron, brass, teak. | 68721 |
| View Record | Large Emergency Morse Key | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Brass, metal alloy, teak, ebonite. | 31025 |
| View Record | Large Main Morse Key | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Mahogany, brass, metal alloy, ebonite. | 53026 |
| View Record | Magnetic Key Relay | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Teak, brass, steel, unknown material, wood. | 99331 |
| View Record | Large Main Condenser With Case | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Wood, jute, brass, iron. | 58903 |
| View Record | Large Fixed-Gap Discharger With Case | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Teak, brass, lead?, metal alloy, sand?, ebonite?, steel. | 65806 |
| View Record | High Frequency Sliding Inductance | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Brass, ebonite, mahogany. | 72720 |
| View Record | Large Aerial Tuning Inductance With Case | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Mahogany, ebonite, brass. | 76739 |
| View Record | Large Main Jigger With Case | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Mahogany?, ebonite, wood, brass. | 14809 |
| View Record | Tuning Indicator With Glass Lamp | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Mahogany, brass, metal alloy, glass, ebonite. | 24927 |
| View Record | Large Wave-Shortening Condenser With Case | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Mahongany, jute?, ebonite, steel, brass. | 49571 |
| View Record | Large Iolanda Switchboard | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Ebonite, glass, copper, plastic?, steel?, brass, unidentified material. | 54296 |
| View Record | Large Marine Charging Switchboard | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Ebonite?, metal alloy, glass, brass, assorted metals. | 49739 |
| View Record | Short Wave Receiver Type CM294C | Dated 1917 | Marconi's Wireless Telegraph Co. of America. | USA | Ebonite, mahogany?, brass, nickel, bakelite, copper, aluminium?, steel. | 46600 |
| View Record | Portable Aircraft Spark Transmitter 40W | c. 1912 | Marconi's Wireless Telegraphy Co. Ltd. | London | Teak, leather, ebonite, steel, bakelite?, brass. | 19772 |
| View Record | Rotary Spark Discharger | Early 20th Century | Marconi's Wirelss Telegraph Co. Ltd. | London | Steel, brass, cast iron. | 71249 |
| View Record | Marconi Radio Valve Type FE2 | c. 1922 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel?, assorted metals. | 92775 |
| View Record | Marconi-Osram Radio Valve Type R | c. 1923 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, plastic?, brass?, assorted metals. | 85569 |
| View Record | Marconi-Osram Radio Valve Type R | c. 1923 | Marconi-Osram Valve Co. Ltd. | London | Glass, phosphorous, nickel?, plastic?, steel, assorted metals | 22908 |
| View Record | Marconi-Osram Radio Valve Type R | c. 1925 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, plastic?, brass?, assorted metals. | 82041 |
| View Record | Marconi Radio Valve Type S625 | c. 1928 | Marconi-Osram Valve Co. Ltd. | England | Glass, plastic?, steel, assorted metals. | 49486 |
| View Record | Marconi-Osram Radio Valve Type DER | c. 1923 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, plastic?, brass?, assorted metals. | 43964 |
| View Record | Marconi-Osram Radio Valve Type DER | 1920s | Marconi-Osram Valve Co. Ltd. | London | Glass, steel, brass?, plastic?, assorted metals. | 80189 |
| View Record | Marconi-Osram Radio Valve Type MPT4 | Late 1920s | Marconi-Osram Valve Co. Ltd. | London | Glass, plastic?, steel, assorted metals. | 84752 |
| View Record | Marconi-Osram Radio Valve Type R | c. 1923 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, plastic?, brass?, assorted metals. | 59257 |
| View Record | Marconi-Osram Radio Valve Type DER | c. 1923 | Marconi-Osram Valve Co. Ltd. | London | Glass, steel, plastic?, brass?, assorted metals. | 48922 |
| View Record | Marconi-Osram Radio Valve Type DET 1A | 20th Century | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel-plated, brass, plastic?, assorted metals. | 64933 |
| View Record | Marconi Radio Valve Type MT1 | c. 1919 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, assorted metals. | 48681 |
| View Record | Marconi Radio Valve Type MT1 | Early 20th Century | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, assorted metals. | 46376 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 35970 |
| View Record | Marconi Radio Valve Type DEQ | c. 1923 | Marconi-Osram Valves. | England | Brass, glass, assorted metals. | 74920 |
| View Record | Marconi Radio Valve Type DE6 | c. 1925 | Marconi-Osram Valves. | London | Glass, bakelite, brass?, assorted metals. | 88794 |
| View Record | Marconi Radio Valve Type DE3 | c. 1923 | Marconi-Osram Valves. | London | Glass, steel, plastic?, brass?, assorted metals. | 16810 |
| View Record | Marconi Radio Valve Type DEQ | c. 1923 | Marconi-Osram Valves. | England | Glass, steel, assorted metals. | 20655 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 35098 |
| View Record | Marconi Radio Valve Type DE3C | c. 1924 | Marconi-Osram Valves. | London | Glass, bakelite, steel, tungsten, assorted metals. | 20731 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 47321 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 27778 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 99640 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 31778 |
| View Record | Marconi Radio Valve Type V24 | 1920s | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 83077 |
| View Record | Marconi Radio Valve Type DE3C | c. 1924 | Marconi-Osram Valves. | London | Glass, bakelite, steel, tungsten, assorted metals. | 62393 |
| View Record | Marconi Radio Valve Type DER | c. 1925 | Marconi-Osram Valves. | London | Glass, bakelite, steel, assorted metals. | 15591 |
| View Record | Marconi Radio Valve Type DE6 | c. 1925 | Marconi-Osram Valves. | England | Glass, bakelite, brass?, assorted metals. | 70143 |
| View Record | Marconi Radio Valve Type LP2 | 1930s | Marconi-Osram Valves. | England | Glass, steel, bakelite, assorted metals. | 88183 |
| View Record | Marconi Radio Valve Type DEHL210 | 20th Century | Marconi-Osram Valves. | England | Glass, steel, bakelite?, assorted metals. | 46377 |
| View Record | Marconi Radio Valve Type U10 | 20th Century | Marconi-Osram Valves. | London | Glass, steel, plastic, assorted metals. | 79785 |
| View Record | Marconi Radio Valve Type MH4 | 1930s | Marconi-Osram Valves. | London | Glass, plastic?, nickel, steel, assorted metals. | 24996 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 32090 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 39800 |
| View Record | Marconi Kryha Cipher Machine | c. 1922 | Marconiphone Co. Ltd. | England | Steel?, assorted metals, glass, nickel. | 46995 |
| View Record | Marconiphone Two-Valve Receiver Type 21 | 1925 | Marconiphone Co. Ltd. | London | Bakelite?, ebonite, glass, brass, mahogany, plastic? | 18847 |
| View Record | Marconiphone Receiver Model 235 | c. 1935 | Marconiphone Co. Ltd. | England | Leathercloth, chromium, simulated mother-of pearl | 35936 |
| View Record | Marconiphone Six-Valve Receiver Type 61 | c. 1928 | Marconiphone Co. Ltd. | London | Mahogany, bakelite, steel, glass, copper. | 97219 |
| View Record | Frame Aerial For Marconiphone Receiver Type 61 | c. 1928 | Marconiphone Co. Ltd. | England | Mahogany, steel, copper, bakelite. | 73080 |
| View Record | Frame Aerial For Marconiphone Receiver Type 61 | c. 1928 | Marconiphone Co. Ltd. | England | Mahogany, steel, copper, bakelite. | 49429 |
| View Record | Marconi Radio Valve | 1920s/1930s | Marconiphone Co. Ltd. | England | Glass, steel, plastic?, assorted metals. | 87176 |
| View Record | Marconi Radio Valve Type D42 | 20th Century | Marconiphone Co. Ltd. | England | Glass, steel, bakelite?, assorted metals. | 80037 |
| View Record | Marconiphone Universal Baby Crystal Receiver | c. 1924 | Marconiphone Co. Ltd. | England | Plastic, galena, nickel, steel, bakelite. | 58056 |
| View Record | Marconiphone Two-Valve Receiver Type V2A | c. 1924 | Marconiphone Co. Ltd. | England | Mahogany, celluloid, ebonite, bakelite, nickel, steel, assorted metals. | 90029 |
| View Record | Marconiphone Personal Receiver Type P17B | c. 1950 | Marconiphone Co. Ltd. | England | Plastic, chromium, nickel, glass?, leather. | 33654 |
| View Record | Marconiphone Two-Valve Receiver Type V2A | c. 1924 | Marconiphone Co. Ltd. | England | Mahogany, celluloid, ebonite, bakelite, nickel, steel, glass, assorted metals. | 58602 |
| View Record | Marzi Microphone | 1910 | Marzi Company. | France | Wood, aluminium, steel. | 27140 |
| View Record | Mazda Radio Valve Type PY33 With Carton | 1960s | Mazda | England | Glass, steel, plastic?, assorted metals. | 26731 |
| View Record | Mazda Radio Valve Type CV6 With Carton | 20th Century | Mazda Company. | Unknown | Glass, plastic?, steel, assorted metals. | 38616 |
| View Record | Mazda Radio Tube Type AR8 | c. 1938 | Mazda. | England | Glass, plastic?, steel, assorted metals. | 86462 |
| View Record | Mazda Radio Valve Type PY33 With Carton | 1960s | Mazda. | England | Glass, steel, plastic?, assorted metals. | 79516 |
| View Record | Weston Standard Cell Type D402B | 20th Century | Muirhead & Co. Ltd. | Britain | Bakelite, steel, plastic. | 70200 |
| View Record | Decade Condenser Type 21F | Early 20th Century | Muirhead & Co. Ltd. | Britain | Teak, bakelite, plastic?, steel. | 17600 |
| View Record | Mullard Radio Valve Type ORA/B | c. 1922 | Mullard Radio Valve Co. | Unknown | Glass, rubber?, assorted metals. | 18833 |
| View Record | Mullard Wecovalve Radio Valve Peanut Type With Carton | c. 1920 | Mullard Radio Valve Co. Ltd. | England | Glass, steel, plastic?, assorted metals. | 27364 |
| View Record | Mullard Wecovalve Radio Valve Peanut Type | c. 1920 | Mullard Radio Valve Co. Ltd. | England | Glass, steel, plastic?, assorted metals | 19239 |
| View Record | Mullard Wecovalve Radio Valve Peanut Type | c. 1920 | Mullard Radio Valve Co. Ltd. | England | Glass, steel, plastic?, assorted metals. | 40365 |
| View Record | Mullard Radio Valve Type PY33 | 1960s | Mullard. | Britain | Glass, steel, plastic?, assorted metals. | 93858 |
| View Record | Mullard Radio Valve Type EF37A | Mid 20th Century | Mullard. | England | Glass, steel, plastic?, assorted metals. | 69132 |
| View Record | Radio Valve Type 6V6G | Mid 20th Century | Mullard. | England | Glass, plastic?, steel, assorted metals. | 48716 |
| View Record | Mullard Radio Valve Type ECC35 | 20th Century | Mullard. | Britain | Glass, plastic?, steel, assorted metals. | 96920 |
| View Record | Mullard Television Valve Type PL504 With Carton | 20th Century | Mullard. | Britain | Glass, steel, assorted metals. | 40357 |
| View Record | Mullard Radio Valve Type PM4 | 1930s | Mullard. | England | Glass, steel, bakelite, assorted metals. | 21856 |
| View Record | Mullard Radio Valve Type 2D4A | Mid 1930s | Mullard. | Britain | Glass, plastic?, steel, assorted metals. | 83305 |
| View Record | National Union Radio Tube Type 50L6GT With Carton | c. 1941 | National Union. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 47236 |
| View Record | National Union Radio Tube Type 35Z5GT With Carton | c. 1942 | National Union. | USA | Glass, plastic, steel, assorted metals. | 80623 |
| View Record | National Union Radio Tube Type 12SA7GT With Carton | c. 1942 | National Union. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 30961 |
| View Record | Newton Induction Coil | c. 1899 | Newton & Co. | London | Mahogany, brass, ebonite, wax, paper, celluloid. | 69748 |
| View Record | Newton Induction Coil | 1897 | Newton & Co. | London | Mahogany, brass, ivory?, celluloid, ebonite. | 94316 |
| View Record | Marconi Radio Valve Type 42A | 20th Century | Officine Marconi-Genova. | Italy | Glass, steel, plastic?, assorted metals. | 19824 |
| View Record | Osram-GEC Radio Valve Type R4 | c. 1916 | Osram G.E.C. | England | Teak?, glass, brass, tungsten, assorted metals. | 59017 |
| View Record | Osram-GEC Radio Valve Type R4 | 1917 | Osram-GEC. | England | Teak?, glass, copper?, tungsten, assorted metals. | 96640 |
| View Record | Osram Radio Valve Type R | c. 1918 | Osram. | England | Glass, tungsten, brass?, steel, assorted metals. | 80773 |
| View Record | Osram Radio Valve Type P2 | 20th Century | Osram. | England | Glass, bakelite?, steel, assorted metals. | 57431 |
| View Record | Osram Radio Valve Type CM8 | 20th Century | Osram. | England | Glass, steel, bakelite?, assorted metals. | 79293 |
| View Record | Philips Radio Valve Type QQE02 With Separate Carton | Late 20th Century | Philips. | Holland | Glass, steel, assorted metals. | 34480 |
| View Record | Philips Radio Valve Type R | 1920s | Philips. | Holland | Glass, steel, bakelite?, brass?, tungsten, assorted metals. | 84869 |
| View Record | Experimental Fleming Valve | c. 1889 | Prof. J.A. Fleming. | London | Glass, nickel, steel, ebonite, wood. | 85593 |
| View Record | Fleming Valve | c. 1889 | Prof. J.A. Fleming. | England | Glass, nickel, steel, ebonite, wood. | 80572 |
| View Record | Puratone Rubon Radio Valve | 1924 | Puratone Rubon. | Britain | Glass, plastic, steel, assorted metals. | 31417 |
| View Record | Raytheon Radio Tube Type 6J7G | Mid 20th Century | Raytheon. | USA | Glass, steel, plastic?, assorted metals. | 39208 |
| View Record | Raytheon Radio Tube Type 6H6G With Carton | Dated 1934 | Raytheon. | Massachusetts, USA | Glass, steel, plastic?, assorted metals. | 37614 |
| View Record | RCA Radiotron Radio Tube Type VR54 | 20th Century | RCA. | USA | Plastic?, steel, assorted metals. | 80165 |
| View Record | RCA Radiotron Radio Tube Type VR54 | 20th Century | RCA. | USA | Plastic?, steel, assorted metals. | 15408 |
| View Record | RCA Radiotron Acorn Radio Tube Type VT121 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Glass, steel, assorted metals. | 61791 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 69398 |
| View Record | RCA Radiotron Cunningham Radio Tube 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 70529 |
| View Record | RCA Radiotron Radio Tube Type 6J7 With Carton | Dated 1943 | RCA. | Philadelphia, USA | Plastic?, steel, assorted metals. | 56677 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 76997 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 | 20th Century | RCA. | USA | Glass, plastic?, steel, assorted metals. | 15130 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z3 | 20th Century | RCA. | USA | Glass, ribbon, steel, plastic?, assorted metals. | 56681 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 17167 |
| View Record | RCA Radiotron Radio Tube 42 With Carton | 20th Century | RCA. | USA | Glass, steel, plastic?, assorted metals. | 89266 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 98935 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 30472 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 72723 |
| View Record | RCA Radiotron Radio Tube Type 6C8G With Carton | 20th Century | RCA. | USA | Plastic?, glass, steel, assorted metals. | 72382 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 78432 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 49234 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 20953 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 84925 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 70668 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z3 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, ribbon, steel, plastic?, assorted metals. | 18078 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z3 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, ribbon, steel, plastic?, assorted metals. | 22875 |
| View Record | RCA Radiotron Radio Tube Type 6B7 With Carton | 20th Century | RCA. | USA | Glass, plastic?, steel, assorted metals. | 58967 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 61674 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 60662 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 31810 |
| View Record | RCA Radiotron Radio Tube Type 6C6 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, steel, plastic?, assorted metals. | 64468 |
| View Record | RCA Radiotron Radio Tube Type 6D6 | 20th Century | RCA. | USA | Plastic?, steel, glass, assorted metals. | 82120 |
| View Record | RCA Radiotron Radio Tube Type 6D6 | 20th Century | RCA. | USA | Plastic?, steel, glass, assorted metals. | 71527 |
| View Record | RCA Radiotron Radio Tube Type 80 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 91686 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 57337 |
| View Record | RCA Radiotron Radio Tube Type 6C6 With Carton | 20th Century | RCA. | USA | Glass, steel, plastic?, assorted metals. | 48010 |
| View Record | RCA Radiotron Radio Tube Type 6C6 With Carton | 20th Century | RCA. | USA | Glass, steel, plastic?, assorted metals. | 22269 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 67628 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 93797 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 62344 |
| View Record | Republic Radio Tube Type 6F5G With Carton | 20th Century | Republic Radio Manfacturing Corporation. | New Jersey, USA | Plastic?, glass, steel, assorted metals | 56270 |
| View Record | Short Wave Tuner & Amplifier No. 17 | c. 1915 | Robert W. Paul. | London | Mahogany, ebonite, bakelite?, brass. | 44893 |
| View Record | Irwin Oscillograph | Early 20th Century | Robert W. Paul. | London | Iron?, brass, copper. | 30624 |
| View Record | Rogers Radio Tube Type VR56 | Mid 20th Century | Rogers Canada. | Canada | Glass, steel, plastic?, assorted metals. | 82126 |
| View Record | Rogers Radio Tube Type VR56 | Mid 20th Century | Rogers Canada. | Canada | Glass, steel, plastic?, assorted metals. | 64947 |
| View Record | 4 Volt Fleming Valve | c. 1905 | Royal Ediswan. | London | Brass, glass, assorted metals. | 93660 |
| View Record | 4 Volt Fleming Oscillation Valve | c. 1905 | Royal Ediswan. | London | Brass, glass, assorted metals. | 21763 |
| View Record | 12 Volt Fleming Valve | c. 1905 | Royal Ediswan. | London | Glass, brass?, assorted metals. | 77499 |
| View Record | 4 Volt Fleming Valve | c. 1905 | Royal Ediswan. | London | Teak?, glass, ebonite, metal alloy, nickel, assorted metals. | 67148 |
| View Record | Portrait of Marconi | 20th Century | S. Tushingham | London | Watercolour, paper, glass, wood, brass. | 50421 |
| View Record | Telephone Relay Type G | c. 1908 | S.G. Brown. | London | Mahogany, steel?, brass. | 13183 |
| View Record | Hirst Bronze Bust | Dated 1936 | S.H. Paulon. | Unknown | Bronze, marble. | 14884 |
| View Record | Instruction Manual For The Marconi Direction Finder Type No. 6 | c. 1916 | Sanders Phillips & Co. Ltd. | London | Paper. | 23434 |
| View Record | Instruction Manual For Aircraft Wireless Telephone Type AD2 | c. 1920 | Sanders Phillips & Co. Ltd. | London | Paper | 38181 |
| View Record | Instruction Booklets For Marconi Wavemeters | c. 1919 | Sanders, Phillips & Co. Ltd. | London | Paper. | 86206 |
| View Record | Instruction Booklet For Aircraft Wireless Telephone Transmitter Type AD1 | c. 1921 | Sanders, Phillips & Co. Ltd. | London | Paper. | 50711 |
| View Record | Medal Institute Of Radio Engineers | c. 1922 | Sanford. | Unknown | Gold. | 12658 |
| View Record | Siemens & Halske Radio Valve Type RE87 | 20th Century | Siemens & Halske. | Germany | Glass, steel, brass, bakelite?, assorted metals. | 77413 |
| View Record | Siemens & Halske Experimental Radio Valve | c. 1917 | Siemens & Halske. | Germany | Glass, bakelite?, steel, assorted metals. | 50748 |
| View Record | Siemens & Halske Radio Valve Type RE87 | 20th Century | Siemens & Halske. | Germany | Glass, steel, brass, bakelite?, assorted metals. | 69068 |
| View Record | Two-Way Morse Key | 1900s | Siemens Bros. & Co. | London | Brass, ebonite, steel | 53048 |
| View Record | Morse Tape Inker | c. 1900 | Siemens Brothers. | London | Brass, mahogany, paper, assorted metals. | 20877 |
| View Record | Ediswan Radio Valve Type ATP4 With Carton | Mid 20th Century | Siemens Edison Swan Ltd. | London | Glass, steel, plastic?, assorted metals. | 22414 |
| View Record | Siemens Radio Valve Type LD2 | c. 1945 | Siemens. | Germany | Steel, glass, assorted metals. | 96292 |
| View Record | Silvertown Condensor | Marked 1918 | Silvertown. | USA | Brass, ebonite, iron?, teak. | 86740 |
| View Record | S. E. Marchesi Marconi | 1931 | Sir Max Beerbohm | London | Paper, watercolour, plastic, metal, nylon? | 16862 |
| View Record | STC Radio Tube Type 6J5G | Mid 20th Century | Standard Telephones and Cables Ltd. (STC). | England | Glass, plastic?, steel, assorted metals. | 59723 |