THE HISTORY OF TUNGSRAM 1896-1945 - MEK

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TUNGSRAM 208The first design of the bariumcathodeera was known as MR-406(1927). This still had a platinumwire as filament.In the next-admittedly very longphaseof the barium-cathode erathe filaments were already madeof tungsten. The design shownhere—one of the first types in thephase-was called G-406.
209 TUNGSRAMThere was an illustrated advert inthe 18 December, 1927 copy of thenewspaper Magyar Hirlap, sellingelectronic vacuum tubes designatedas P-410, P-415, G-408 andR-408. The following little verseappeared in that advert:"Here come the BARIUM VALVEboys, with the compliment ofTUNGSRAM, sounding a divineand lovely voice. Here come theBARIUM VALVE boys."TUNGSRAMBARIUM VALVES.2 VOLT SEKIKS.P215 LAST STAGE POWERVALVE.CODEWORD ; DUFOR.TV NG SRAMBARIUM tuBtThe design P-215 was made in1912 and belonged to the 2-Voltseries. Here the barium cathodemade the heat-controlling resistorsuperfluous, but the batteries hadto match the heating voltage.The P 215 is a speciallow frequency amplifier butcan advantageously also beused as detector or asoscillator and modulatorin heterodyne apparatus.Owing to its fine slope tliisvalve operates large loudspeakersat 90 volts, andat 120 volts it even operatesloudspeakers for largehalls. For an undislorted-36 "., • -T"Filament Voltaffc••eception the grid biasFilament Currentshould be taken as follows:Anode VollaUe50—150 VolU.with an anode voltage of Normal Anode Current60 volts, about 4 volts Consumption .... 12 mA.90 .. . . 8 „ Total Emission35 mA.Amplification Factor . . 5.120 „ .. 12 ..Slope 1,5 mA V.150 „ .. lb ..Impedance330
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. * • . • • * - "BASED ON THE
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• . ; . ^ •>(•'' % •^ i-^J-
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TUNGSRAMin Budapest, producing elec
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TUNGSRAM•.V8reduction in the prod
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TUNGSRAM 10Erno Egger, David Egger
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TUNGSRAM•>,^12marketing staff mal
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TUNGSRAM 14the board of directors d
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TUNGSRAM:k-^16director from 1 July,
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TUNGSRAM 18competitive. The patents
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TUNGSRAM.4-. »fe-"201905. The tech
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TUNGSRAM•>-^:.V22-the production
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TUNGSRAM.^.•:-i-'24TUNGSRAM throu
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TUNGSRAM• > . ^26The incandescent
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TUNGSRAM..^.'i^28investments, the c
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TUNGSRAM 30"^X\ * l .-«l*^" VDesk
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TUNGSRAM 32marketing of light bulbs
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TUNGSRAM 34signed high priority to
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TUNGSRAM 36>'riTUNGSRAM tool shop i
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TUNGSRAM 38Balazs, the head of the
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TUNGSRAM 40merits guaranteed that o
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TUNGSRAM*..V42The staff of TUNGSRAM
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TUNGSRAM• \ ^ .44The acquisition
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TUNGSRAM^•rV46The necessary, quit
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TUNGSRAM• > . ^48cartel made a bi
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TUNGSRAM 50was aimed at two major o
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TUNGSRAM-.i-'.V'52Radio valve produ
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TUNGSRAM 54major areas. One was imp
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TUNGSRAM->.'.V56the volume of produ
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TUNGSRAM 58(i)(ii)(iii)(iv)the plan
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TUNGSRAM 60pressure mercury vapour
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TUNGSRAM.-•:-V62caused important
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TUNGSRAM 64Next Brody went back to
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TUNGSRAM 66prospects of krypton pro
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TUNGSRAM- . * • • ' ^ - ^68cons
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TUNGSRAM•>.>-;70chner's invitatio
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TUNGSRAM\*-'!\?'72It had already be
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TUNGSRAM•.*-VV'74patents in the e
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TUNGSRAM 76new designs developed by
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TUNGSRAM-.^.•.v=78more than one o
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TUNGSRAM 80Ujantalvolgy (Utekac), a
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TUNGSRAM 82case of radio valve fact
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TUNGSRAM 84Behind the drastic drop
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TUNGSRAM• > . ^86In 1937, for the
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TUNGSRAM-.^••V88export which ch
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TUNGSRAM 90prominent place among th
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TUNGSRAM 92looking after the affair
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TUNGSRAM 94Ojpest plant, and, there
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TUNGSRAM 96FemaleworkersTheworker's
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TUNGSRAM 98The surveyance and the d
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TUNGSRAM 100The management of TUNGS
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TUNGSRAM 10232) OL Z 40-462: report
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- ^ • . . .TUNGSRAM 104meeting on
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TUNGSRAM 106173) OL Z 600-1: contra
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•..V
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, % • • • • *5>^•>c'y>"^-
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TUNGSRAM 112V,>•>Carbon filaments
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TUNGSRAM 114r « 9 t * r V n g a r
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TUNGSRAM 116OrimAmm
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TUNGSRAM 118'ûraaOit vtllanjroaMkc
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TUNGSRAM 120W^ - g ^^ ^ 4 ^ .^^^^^^
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TUNGSIVIM 122This group photography
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TUNGSRAM 124%*. ^ . ''^yv^w^ ^y^
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TUNGSRAM 126This old Russian TUNGSR
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TUNGSRAM 128ti.-'J-VC.-url t-l*Xr :
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TUNGSRAM 130IZZOLAMPAOSZTALV.aôL*^
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TUNGSRAM 132to V L r. I. MG LU H LA
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TUNGSRAM 1349V,T^Jil Vl*. SB Knrni<
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TUNGSRAM 136(irMWimtAilKr KM MDurii
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TUNGSRAM 138• > ., ^ - y •Jlr.
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TUNGSRAM 140M«nU«*>«*>>t ilHKft.
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TUNGSRAM 142> •-•, i^ J- -'\.'
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TUNGSRAM 144The clothing of these w
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TUNGSRAM 146The bases of the lamps
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TUNGSRAM 148ARJEGYZEK"mwxvoriMTll.h
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TUNGSRAM 150TUNGSRAM SPIRAL DRAHTLA
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TUNGSRAM 152TUNGSRAMTASCHENLAMPEN>
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TUNGSRAM 154NORMAL LAMPAK HIBA»yzW
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TUNGSRAM 156KGYKSOLT YILLAMOSSAGI R
Page 162 and 163: TUNGSRAM 158iHTf: JTletailumMEttaui
Page 164 and 165: TUNGSRAM 160X. MolyaM. BucUpnl, 191
Page 166 and 167: s;'TUNGSRAM 162MTonpsrar Wolframlii
Page 168 and 169: TUNGSRAM 164• \This photograph sh
Page 170 and 171: TUNGSRAM 166XIn the 1920s, when thi
Page 172 and 173: TUNGSRAM 168villamvilaîiasi t,•^
Page 174 and 175: TUNGSRAM 170The lathe workshop of t
Page 176 and 177: TUNGSRAM 172'^The Jozsef Telephone
Page 178 and 179: TUNGSRAM 174A f) I ii (1 \ •ilfru
Page 180 and 181: TUNGSRAM 1767 » rA."..'!*!* ' In l
Page 182 and 183: TUNGSRAM 178The assembling of stems
Page 184 and 185: TUNGSRAM 180"N-^Lamp production usi
Page 186 and 187: TUNGSRAM 182•\..The workshop prod
Page 188 and 189: TUNGSRAM 184: ^ Îv•V .' V': •K
Page 190 and 191: TUNGSRAM 186TUNGSRAM TiDUnASPIKAtli
Page 192 and 193: TIINGSRAM 188Figure 8: Gas-filled G
Page 194 and 195: TUNGSRAM 19032. ibniniWSRAM3X Abn 3
Page 196 and 197: TUNGSRAM 192A21& «z.30 IMB. ilmird
Page 198 and 199: iTUNGSRAM 194This is what was left
Page 200 and 201: TUNGSRAM 196This compound steam eng
Page 202 and 203: TUNGSRAM 198^-2?s.-J rslanlcn-B." t
Page 204 and 205: TUNGSRAM 200Two eminents persons fr
Page 206 and 207: TUNGSRAM 202• ^llpesl/no^yolVDUPO
Page 208 and 209: TUNGSRAM 204Trained labourers work
Page 210 and 211: TUNGSRAM 206TUNG 5^^^RAD/o.^^^ RENT
Page 214 and 215: TUNGSRAM 210The title page of TUNGS
Page 216 and 217: TUNGSRAM 212The basing of incandesc
Page 218 and 219: TUNGSRAM 214'VThe TUNGSRAM sales of
Page 220 and 221: TUNGSRAM 216¥»>•—isa»SZCIV^N
Page 222 and 223: TUNGSRAM 218The central executive a
Page 224 and 225: TUNGSRAM 220In cold winters the ten
Page 226 and 227: TUNGSRAM 222Originally, this buildi
Page 228 and 229: TUNGSRAM 224A vullalatra voiialUo/.
Page 230 and 231: TUNGSRAM 226.mm--aV1) f^^^^^^^^^^^^
Page 232 and 233: TUNGSRAM 228•\"V\These were the p
Page 234 and 235: TUNGSRAM 230The tools used in drawi
Page 236 and 237: TUNGSRAMV232"••"•'•••'
Page 238 and 239: TUNGSRAM 234m-am«•i?iiiU-« l»t
Page 240 and 241: TUNGSRAM 236TUNGSRAM launched an in
Page 242 and 243: TUNGSRAM 238V'x""^.^'V -êgy a sok-
Page 244 and 245: TUNGSRAM~^-.240k Krypton rvndkiviil
Page 246 and 247: TUNGSRAM 242n==r^ /Ay^d^^"*• v.-^
Page 248 and 249: TUNGSRAM 244I«JI:«M:7J::.l'lBd.'l
Page 250 and 251: TUNGSRAM 246*' " ^ • * \The techn
Page 252 and 253: TUNGSRAM 248^^^GSR^>^^^''^^-Cs6vt^t
Page 254 and 255: TUNGSRAM 250The combined valve prod
Page 256 and 257: TUNGSRAM 252brtfi¥ 6 t (, ».likba
Page 258 and 259: TUNGSRAM 254mt6'3 Vollos univerzali
Page 260 and 261: TUNGSRAM 256This picture shows the
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TUNGSRAM 258:«l.XQb. 194o. dAoanbe
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TUNGSRAM 260-VA disciplined work-fo
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TUNGSRAM 262The furnaces and the gl
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TUNGSRAM 264• \When the block was
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TUNGSRAM 266And finally, another ty
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./ .TUNGSRAM 268••\.The develop
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TUNGSRAM-
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TUNGSRAM 272M E G H I V 6A Tungirom
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TUNGSRAM 274Ai UjpestI Toms Egylet
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TUNGSRAM 276•V.•>5This was the
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TUNGSRAM 278'•v--''?»^^:>:s,.»>
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TUNGSRAM^r^280?!The working class m
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TUNGSRAM 282IN MKMORIAM.A hiibon'i
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- ^ • • * ^ ^ ^
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\-.,'>•-'Vf
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THE HISTORY OF TUNGSRAM 1896-1945 - MEK

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