2 boxes of Radio kit components and many boxes of valves.
Marconi triode valve A2; Type no. PT240
Triode valve Western Electric 4215A
Marconi triode valve A4 Type no: DEL HO
Thermionic valve Marconi triode valve HL210 c.1931
Thermionic valve - valve,triode, made by Marconi Osram Valve Co in England, United Kingdom, 1930
Thermionic valve - valve,triode, made by Marconi Osram Valve Co in England, United Kingdom, 1930
Philips triode valve FA9 Type no. E415
Marconi triode valve A10; Type no. S625; Final S.S. valves
Osram valve PX4 LH 10 in original carton box.
Clarion triode valve A15 Type no. VS2 (DG)
British Thomson-Houston Company triode valve. Type B5
British Thomson-Houston triode valve A17 Bb?
Duval triode valve FA23 Type no. 201.A
Triode valve
Thermionic valve, triode, manufactured by A. C. Cossor Ltd, 1924, A26; Type no. PL; red capped
Marconi triode valve A27; Type no. R
Marconi triode valve A28; Type no. DE5
Marconi triode valve A29; Type no. R
Thermionic valve, triode, manufactured by A. C. Cossor Ltd, 1927, A30; Type no. Primtime
Edison Swan Electric Co. triode valve, A32; Type no. AR.06
Marconi triode valve, A34; Type no. DE8HF
Marconi triode valve
Thermionic valve - valve, multiple
Triode valve
Philips triode valve FA38; R type, no cap, (?) leads, Damaged/fragile box
Marconi triode valve, A41; Type no. V24
Mullard triode valve, A42; Type no. PM12; Tetrode
Western Electric triode valve, FA43; Type no. 4102D; probably telephone
Standard triode valve (STC), A44; repealing valve
Siemans triode valve, FA45; Type no. B. O.; small (?refer to accession file?) R type
Marconi triode valve, A46; Type no. DEL612
Triode valve, A48; experimental R - type, no cap, pip lip (?)
Philips triode valve, FA49; E442; screwing missing
Marconi triode valve, A50; Type no. P215
Marconi valve, boxed. Type 4364F.
Loewe triode valve, FA36; Type no. 3NF, Multiple valve - (?)
Mullard Pentone Valve, A54; Type no. PM24D
Marconi Osram valve
Marconi triode valve, D2; Type no. ETI; Electrometer triode
Marconi triode valve, D11 Type no. VT6V, GPO No 234 special triode litephone?
Marconi triode valve, D79 Type no. DET5 large triode
Triode valve, D32; D - Industrial & special power valves, Possible experimental 2 anode diode - more research needed
Thermionic diode valve, D31
Marconi Osram thermionic diode valve
amplifier, manufactured by S G Brown
Thermionic valve - valve,triode, made by Marconi Osram Valve Co in England, United Kingdom, 1930
Switchable radio coil - ex trench set?
Radio transmitter coil for aerial coupling
Galvanometer Charge/Discharge (coil missing), Type no. 189
Ammeter, refer to accession file, handwritten and difficult to read
Coherer tapper; rare
Coherer tapper; rare
Transmitting triode valve, AEG TS41, Eigentum der RLM (air ministry property)
RCA Radiotron transmitting triode valve, Type no. 800
General Electric miniature cathode ray tube, Type E4103/B/4, ref no. B4
EMI photomultiplier tube, type no. 9708KR
Brimar photomultiplier, B5; Type no. 931A
Cathode Ray Tube possibly for airborne radar display
Cathode ray tube Tv CRT gun assembly with ion trap
Societe Francaise Radioelectrique valve
Tung-Sol VHF triode A59 Type no. 703A
General Electric US Navy 'lighthouse' triodes. Type no. 446B (Could be A, mistake on reference sheet?)
OPTA RV12 P2000 valve FA73; pentode - navy
Valve
Valve
Marconi catkin triode valve, A58; N30
SFR valve
Mullard photoconductive cell, Type no. 6I SV
Philips Miniwatt diode valve, AB1 577
BAL pentode valve - navy, 43/41 119442
Telefunken pentode valve - navy, FA72; RV12P2000
Valve made for Canadian Marconi Company, 1619 K6
Ken-Rad triode valve 7193
Philips valve KB2 / O38
HH Eby Inc radio socket.
SFR triode valve
Triode valve possibly from China
Philips tube no. 340
Westinghouse Radiotron tube adaptor 6A8
General Electric triode valve GL. 464A 19H4, FA64; US Navy 'lighthouse' triode
General Electric triode valve US Navy 'lighthouse' triode 446 - ?
Telefunken triode valve, Armed devices valve
Telefunken pentode valve, navy pentode {BAL 718}
OPTA navy pentode valve RV12 P2000
Lorenz valve Type no. LG 3
Edison Nuphonic dictaphone
RCA transmitting valve made for Canadian Marconi Company
RCA transmitting valve; National Company C7; carbon anode
Philips transmitting valve C8; Type no. 4646
Transmitting valve C9; Type no. VU508
Transmitting valve C10; CV121
Mazda triode valve H210
Mazda triode valve, UU5; a classic Mazda indirectly-heated HT rectifier with a characteristic envelope shape. One side of the heater is connected to the cathode. The anode cavities are each made from two black pressed plates. This rectifier is designed to work into a maximum reservoir capacitor of 8 µF.
The UU4 (350V) and UU5 (500V) were used in larger radios from the mid-1930s and remained in the lists until the 1960s. (National Valve Museum website)
Mazda triode valve PP3/425
Mazda pentode valve, AC/PEN from the National Valve Museum:
The Mazda AC/Pen, introduced in 1930 on the B5 base, was the first technically successful indirectly-heated power pentode capable of enough output to drive a moving-coil loudspeaker at good volume. The envelope contains a bright cylindrical anode with clearly visible grids. The electrodes are held in, or clamped to, a glass pinch, from which wires will run to the spring base pins. The Mazda AC/Pen was the landmark valve whose design overcame these difficulties at low cost and without causing other problems.
Mazda pentode valve ACV/P1
Mazda triode valve. HL2 from National Valve museum: The HL2 is a general purpose triode but the Mazda advert for this metalised valve suggests that it is well suited for use as a leaky grid detector of first audio voltage amplifier.
Mazda pentode valve SP 41 from National Valve Museum: The SP41 is an amplifier pentode with external metalisation as shielding. The original design was from Mazda, and other manufacturers copied this successful design after it had become established. The demand for efficient video pentodes for TV came a year or two earlier in Britain than elsewhere and the SP41 was Mazda's solution. Shorter leads to shorter pins, and compactness in general, are essentials where high gain-bandwidth product is a requirement.
British Thomson-Houston Mazda valve
U65/550
Valve
