Start

 

Type numbers wizard, linking onto various pages (in progress)

Tracing information on the bases of type-numbers, is often quite difficult. This website has become now so extensive, that one cannot easily find references or that like, by simply using the briefed subject descriptions.

Last update: 30 November 2008

 

Numbers and keywords, in alphabetic order:

15WSEb: Archives PP1

100 WS: Archives PP1, DEHS 2008 paper,

105 (Reisz Mikrophon): Reiss microphone

30WS: Line communications

441 TV lines standard of 1938: TFT 441 lines 1938

80WS: Line communications, DEHS 2008 paper

A4 (=V2): Dienstreise Nord I, Archive displays, KTB-Chef-TLR

Adelsberger: Precision Time paper of 2000

AEG (leaflets): Handbooks, AEG Sternmodulator TFT, CIOS III-1 Philips plant Eindhoven

Agentenfunk (Afu): Abwehr wireless

Airborne command transmitter (transponder?) module (unidentified type number): Archive displays

Aircraft radar: Archive displays, KTB-Chef-TLR, Patents DE, Airborne radar technology, OKM-Tagung 1944, Beck's collection!

Albert Einstein: Annalen der Physik

Alblas (Freek): Alblas quartz collection

Alternator = Maschinensender:  Handbooks, papers and product information, Telefunken-Zeitung 1925 on Malabar

Amateurfunk (pre-war HAM radio-amateurs): DASD-CQ 1937, Ernst Sachs'letter to Himmler, Helmut Liebich's letter to PA0SE, DL1IX letter, DEHS 2008 paper

Ampère een moeilijk proces: Measurements

Analyser (audio): Exhibits, Siemens cat. 1940

ANG (Mannheim): Beck collection

ANG62: Archives PP, Würzburg

Antennae: Naxos, ENT various, Patents DE, Hollmann, Airborne radar technology, Jagdschloss FuG404, GBN-ZWB Antenne-Tagung of 1943, Ferdinand Braun's Nobel prize lecture of 1909, Beck collection, Lichtenstein SN2 antenna construction

Appel R.: GBN-ZWB Antenne-Tagung of 1943

Arbeitsgemeinschaft Rotterdam Protokolle 1943/44: AGR-Protocols

Archive quick reference dbase: Subject ref dbase

Arthur Scherbius Dr.: Enigma related patents and documents, G-Schreib Enigma

AS60 (=M1K): Exhibits, Archive displays

ATM (ATM various): Archiv für technisches Messen, Handbooks

Ballistische (ballistic) galvanometer: Measurements

Ballonsender g "M": Na-Liste

Barkhausen: ENT various, Subject ref dbase

Belzig: Abwehr wireless

Berlin(radar): Exhibits, Handbooks, KTB-Chef-TLR part 2, Airborne radar technology, AGR-Protocols, Landsberg-Navigationstagung, OKM-Tagung 1944, RD2Md, Beck collection

Berlin Sichtgerät SG224: Exhibits, OKM-Tagung 1944, RD2Md, Beck collection

Bernstein (Paul): Enigma related patents and documents

BHF: NVK research, Ernst Lecher report 2, Handbooks, Subject ref dbase, AGR-Protocols, Landsberg-Navigationstagung, OKM-Tagung 1944

BIOS reports: FIAT-CIOS-BIOS, Subject ref dbase

Bildtelegraphie: Lorenz 50 Jahre

Blindlandung: Navigational aids, ENT various, Patents DE

Bleeker meetinstrumenten: Measurements

B.N. (= Beschaffungsnummer R&S): PTE (R&S) guide 1938

Boltzmann: Annalen der Physik Festschrift

Boot and Randall: Boot and Randall's famous cavity magnetron patents

BOS (US Bureau of Standards): Precision Time paper of 2000

Boucherot circuit of E52 local oscillator (LO): Köln re-calibration professionally

Boulengé: Patents DE

Boulittecardiograaf: Measurements

Braunkohle: Landsberg-Navigationstagung

Braunsche Röhre (CRT): Ferdinand Braun, Subject ref dbase

Broadcasting, FM, and Hörverbot 1941: Radio Mentor

Brommy: Landsberg-Navigationstagung

Brown patent microphone amplifier: Archive displays, Exhibits

Brückmann H.: GBN-ZWB Antenne-Tagung of 1943

Bruneval raid report: Bruneval Report

BUS (wiring E 52/E 53): Handbooks, Synopsis

Cady: Precision Time paper of 2000

Cambridge Instruments catalogue (catalog) of about 1927: Cambridge catalogue

Campbell's vibration Galvanometer (Cambridge Instruments UK): Campbell-Vibration, Archive displays

C. Lorenz 50 Jahre: Festschrift der Lorenz A.G 1930

Calan (Ultracalan): Handbooks, ATM Z944-3, Patents DE

Calit: Hescho product guide, Handbooks, Synopsis, ATM Z944-3

Carl Zeiss Stiftung (Foundation): Carl Zeiss Siftung, Handbooks

Carpet radar jammer: Würzburg, Archives PP

Cavity (magnetron): Boot and Randall's famous cavity magnetron patents of 1941, H-J. Fischer's book Radartechnik, LMS10 vs CV64 TRE report, Strapping theory, Cold strapping gear?

Ceramics: Handbooks papers and product information, Synopsis, Patents DE, CIOS III-1 Philips plant Eindhoven, DEHS 2008 paper

CFQ: CFQ, Patents DE, Time paper

Chiffriermaschinen Aktiengesellschaft: Enigma related patents and documents, G-Schreib Enigma

CIOS reports: CIOS, FIAT-CIOS-BIOS, Subject ref dbase

Clark standaardcel: Measurements

Clausewitz: Einführung

Command transmitter module (airborne): Archive displays

Compensator (basis) principe (potentiometer): Measurements, ATM various

Condensa (Hescho dielectric): Hescho product guide 1939, ATM Z944-3, Subject ref dbase

Consol(Sonne): Navigational aids, Patents DE, Subject ref dbase

CR 101 (Philips): Archives PP1

CR105 (Philips): Archives PP1

CRT: Ferdinand Braun, Elektronenstrahl-Oszillographs (ATM various), Patents DE, Subject ref dbase, Braun 1909 Nobel lecture, TV tech 1938-1942

Cupal (Conducting properties of Al and Cu): FTM various, Subject ref dbase

CV64 vs LMS10 Berlin magnetron: LMS10 vs CV64

D4AAR (Hannes Bauer): DL1OY letter

Dahlmann H.: GBN-ZWB Antenne-Tagung of 1943

Dajeukolot (Dajeuhkolot)(Dajeuh kolot): Dijkstra - Malabar, Hansbooks, Dajeukolot

Dällenbach: Handbooks (Resotank HB 14), Patents DE

Dark Trace Tube (CRT)(Blauschrift Röhre): Handbooks, Patents DE

DASD CQ, German radio amateur (Funkamateur) magazine of 1937 (selection of topics): DASD-CQ 1937, Helmut Liebich's letter to PA0SE, Ernst Sachs' letter to Himmler, DL1IX letter, DASD-CQ 1939-44

DASD 5 Jahre Leitfunkstation: DASD-CQ 1937

DE762245(ap): DE762245

D3ank: DASD-CQ 1939-44

D3avk: DASD-CQ 1939-44

D3ayv: DASD-CQ 1939-44

D3ben: DASD-CQ 1939-44

D3bfn: DASD-CQ 1939-44

D3cdk: DASD-CQ 1939-44

D3cek: DASD-CQ 1939-44

D3dap: DASD-CQ 1939-44

D3dmc: DASD-CQ 1939-44

D3dsr: DASD-CQ 1939-44

D3dyu: DASD-CQ 1939-44

D3fba: DASD-CQ 1939-44

D3iuj: DASD-CQ 1939-44

D3jaf: DASD-CQ 1939-44

D3jcf: DASD-CQ 1939-44

D3jgf: DASD-CQ 1939-44

D3jhf: DASD-CQ 1939-44

D3jis: DASD-CQ 1939-44

D3jjs: DASD-CQ 1939-44

D3jks: DASD-CQ 1939-44

D3jls: DASD-CQ 1939-44

D3jms: DASD-CQ 1939-44

D3jns: DASD-CQ 1939-44

D3jyp: DASD-CQ 1939-44

D4adf: DASD-CQ 1939-44  

D4akk: DASD-CQ 1939-44

D4amd: DASD-CQ 1939-44

D4arr: DASD-CQ 1939-44

D4avf: DASD-CQ 1939-44

D4bgf: DASD-CQ 1939-44

D4bxw: DASD-CQ 1939-44

D4cuq: DASD-CQ 1939-44

D4cvk: DASD-CQ 1939-44

D4dba: DASD-CQ 1939-44

D4dow: DASD-CQ 1939-44

D4dsr: DASD-CQ 1939-44

D4dyu: DASD-CQ 1939-44

D4fbc: DASD-CQ 1939-44

D4fmf: DASD-CQ 1939-44

D4ggf: DASD-CQ 1939-44

D4hng: DASD-CQ 1939-44

D4hpg: DASD-CQ 1939-44

D4ioh: DASD-CQ 1939-44

D4iro: DASD-CQ 1939-44

D4jcv: DASD-CQ 1939-44

D4jis: DASD-CQ 1939-44

D4kaf: DASD-CQ 1939-44

D4leu: DASD-CQ 1939-44

D4lkm: DASD-CQ 1939-44

D4mac: DASD-CQ 1939-44

D4ncm: DASD-CQ 1939-44

D4nbo: DASD-CQ 1939-44

D4nlo: DASD-CQ 1939-44

D4opt: DASD-CQ 1939-44

D4oul: DASD-CQ 1939-44

D4pdt: DASD-CQ 1939-44

D4pgf: DASD-CQ 1939-44

D4pqb: DASD-CQ 1939-44

D4rac: DASD-CQ 1939-44

D4rho: DASD-CQ 1939-44

D4rmq: DASD-CQ 1939-44

D4rul: DASD-CQ 1939-44

D4sto: DASD-CQ 1939-44

D4toz: DASD-CQ 1939-44

D4uds: DASD-CQ 1939-44

D4ujw: DASD-CQ 1939-44

D4uud: DASD-CQ 1939-44

D4uyd: DASD-CQ 1939-44

D4vco: DASD-CQ 1939-44

D4veh: DASD-CQ 1939-44

D4vgh: DASD-CQ 1939-44

D4vjv: DASD-CQ 1939-44

D4vrr: DASD-CQ 1939-44

D4vum: DASD-CQ 1939-44

D4wil: DASD-CQ 1939-44

D4wvu: DASD-CQ 1939-44

D4wyf: DASD-CQ 1939-44

D4xld: DASD-CQ 1939-44

D4xvf: DASD-CQ 1939-44

D4ynf: DASD-CQ 1939-44

D4ytm: DASD-CQ 1939-44

D4yum: DASD-CQ 1939-44

D4zdb: DASD-CQ 1939-44

D4zhg: DASD-CQ 1939-44

D4zuf: DASD-CQ 1939-44

D4zvb: DASD-CQ 1939-44

D4zxf: DASD-CQ 1939-44

Dieselhorst - Martin - Verseilung (DMV): Line communications, Patents DE

Diesselhorst compensator (Kompensator)(Otto Wolff): Measurements, Diesselhorst papers 1906/08, ATM various

Dijkstra Klaas: Dijkstra-Malabar

Diode patent of Ferdinand Braun: Ferdinand Braun's patent DE178871

Display (numerical), Siemens Leuchtwechselzahl: Handbooks papers and product information

DL1DX (Hannes Bauer = D4arr): DL1OY letter

DL1IX: DL1IX letter

DL1OY Helmut Liebich): DL1OY letter, DASD-CQ 1939-44

DLL22T: Abwehr wireless

DMG2T (DMG 2T, Elster): Elster DMG 2T

DMG 4, DMG 5: Line communications

Dochtkohle: Landsberg-Navigationstagung

Doppler modulation of moving objects (Moving target indication MTI): US1981884

Doppler navigation: Navigational aids

Draaispoelmeter (moving coil): Measurements

Drehkreuzachse: Line communications, Patents DE

Drehrichtsanzeiger (RST)(AEG): Handbooks papers and product catalogues

DUR (R&S): Na-Liste

E1 (E 1) Einheitsfernseher "Volks TV": Radio Mentor, TFT 1939 Heft 7, TFT 441 line standard of 1938, 1Band Heft 5 August 1939

E51: Handbooks, E52 prototype V1

E52: Synopsis, Handbooks, Köln E52 scale re-calibration, Köln Koeln E52 page, E52 prototype V1, Köln restoration, E51 bis E53 spare part box

E53: Handbooks, E52 prototype V1, Exhibit 1994004U, E51 bis E53 spare part box

E54: Handbooks, E52 prototype V1

E85: Abwehr wireless

EAG62/65: Archives PP, Würzburg

ECM ECCM: RCM versus Wurzburg, Subject ref dbase, Deckname Würzburg, OKM-Tagung 1944

Eichmaschine(Anlage) für Mikro-Film-Skalen-Eichung: Patents DE, Subject ref dbase

Einheitsröhre (new valve envelope and base standardisation 1940-1945): Einheitsröhre

Einstein Albert: Annalen der Physik

Einthoven snaargalvanometer: Measurements, Annalen der Physik

Elektrodynamische meters: Measurements

Elektrolytischer Trog (electrolytic bath (tub)): FTM elektrolytischen Trog

Elektrometerröhre: ATM various

Elektronenstrahl-Oszillograph (CRT oscilloscope): ATM various, Patents DE

Elektrostatische meters: Measurements

Elster DMG2T: Elster DMG 2T

Empfägerprüfer für Torn. Fu. bf 1: Funkprüfer

EN410N (Telefunken): Na-Liste

Einflugzeichensender  2 (ESZ2): Archives PP1

Engl (Triergon (Tri-Ergon): Weblinks

Enigma: Huff Duff, Patents DE, Handbooks, Schlüssel M4, Schlüssel M4 Begleitbuch, Schlüssel M4 g.Kdos 626, G-Schreib Enigma, Enigma related patents and documents, DEHS 2008 paper

Enzian 100" & 300" : Na-Liste

EO 1/60/SN (AEG): Na-Liste

EO509, (EO 509, EO509/III): Archive displays, Exhibits

Erbslöh (Gema): NVK research, Patents DE

Ernst Lecher Institut: Ernst Lecher report nr 2, Handbooks, AGR-Protocols

ES111 (ES 111) deflection valve (tube) of TV set type E1 (E 1): TFT 1939 Heft 7

ESZ2 (Einflugzeichensender): Archives PP1

ETZ article of 1923 on Arthur Scherbius secret type-writer: G-Schreib Enigma

F2 (Funkprüfer)(Junker): Na-Liste

FB11 Funkbeschicker: Archive displays, Exhibits

Feldfernkabel (FFK): Line communications, Patents DE

Feldfernschreiber (Hellschreiber): Hell Mitteilungen, Handbooks and papers,

Feldhell: Handbooks and papers, Subject ref dbase

Ferdinand Braun (Karl Ferdinand): Braun DE178871, Braun 1909 Nobel lecture, Annalen der Physik, Ferdinand Braun's CRT paper of 1897, Braun's Nobel lecture of 1909

Fernübertragung Luftboden-Empf-Programm: Handbooks, Subject ref dbase

Fernseh Geschichte (TV): TV history, Radio Mentor, TV Technology 1930 - 1945, Fernseh Hausmitteilungen, German 441 lines TV standard of 1938, 1Band Heft 4 Juli 1939

Fernseh G.m.b.H. (Fernseh A.G.): TV Technology 1930 - 1945, Patents DE

Fernschreiber: Line communications; Handbooks, Patents DE, G-Schreiber T52d, FTM Telex 1942, WT40 telex interface

Feussner (Feußner): Otto Wolff, Diesselhorst

FIAT reports: FIAT, FIAT-CIOS-BIOS, Subject ref dbase

Fischer H-J: H-J Fischer

Franke Adolf (Siemens Zeitschrift Nachruf): Siemens Franke

Funkbeschicker FB 11: Archive displays, Exhibits

FFK (= US spiral four): Line communications, Patents DE

FH4: Huff Duff

Fischer F.A. (Elac): ENT various, Sonar GHG

FM351 (Frequenzmesser = wavemeter to Korfu E351): Korfu

Franke Kompensator (= Potentiometer): Franke Kompensationsapparat

Fränz K.: GBN-ZWB Antenne-Tagung of 1943

Frequenta (Frequenta D): ATM Z944-3, Subject ref dbase

Frequenzkontrollgerät 62 (Wellenmesser): Archive displays (curoous devices), Archives PP

Freya (various): Report T 11-219

FuG03 (Stuttgart): Line communications

FuG10 (FugX): Synopsis, Exhibits, Archives PP3

FuG16ZY, Fug16ZE: Navigational aids, KTB-Chef-TLR, Subject ref dbase, CIOS III-1 Philips plant Eindhoven

FuG17E: Navigational aids

FuG25a (FuG 25a): Report T 11-219, DEHS 2008 paper

FuG28a: Archive displays

FuG62,FuG 65: Würzburg, Exhibits, Bruneval T.R.E.(TRE) report, Patents DE, Subject ref dbase, Report TME 11-219

FuG101a: Funkhöhenmesser 101a

FuG102: CIOS III-1 Philips plant Eindhoven

FuG120: Navigational aids

FuG125 (Hermine): Navigational aids, KTB-Chef-TLR, Patents DE

FuG200 circuit technology: FuG 200 Jucker, Handbooks, Patents DE, Subject ref dbase, Report T 11-219, Curious archive displays, RD12Tf, Beck collection

FuG 202 & FuG220 (=Li.SN2): Archive displays, KTB-Chef-TLR, Subject ref dbase, Lichtenstein FuG202-FuG220 SN2 Hans Jucker, Airborne radar technology, OKM-Tagung 1944, OKM-Tagung 1944, Report T 11-219, Beck collection

FuG214 (FuG 214 R): Report T 11-219, Beck collection

FuG216: Report T 11-219, Beck collection

FuG224: Exhibits, Berlin FuG 224, KTB-Chef-TLR, Subject ref dbase, Airborne radar technology, AGR-Protocols, Landsberg-Navigationstagung, RD2Md, Beck collection

FuG350Zc: Naxos, Exhibits, Airborne radar technology, AGR-Protocols, OKM-Tagung 1944, Beck collection

FuHE b: Archives PP1

FuHE c: DEHS 2008 paper

FuHE d: Archives PP1

FuHE e: Archives PP1

FuHE f: Exhibits, Archive displays

FuHE u: Archives PP1

FuMB28: Naxos, Airborne radar technology, Beck collection

FMG (FuSE - FuMG) 39L - 39T: Report T 11-219

Funkamateurliste 1937 [call-sign list of German Hams (OM)]: DASD-CQ 1937

Funkliebhabersender (List of German pre-war Hams - OMs): DASD-CQ 1937

Funkspr. f: Archives PP1

FuSE65 (FuG65) Würzburg Riese or Giant Würzburg (Wuerzburg): Report T 11-219, Archives PP

FuMO81 (FuMO 81)(= Navy version of Berlin FuG 224 radar): Handbook, Airborne radar technology, AGR-Protocols, OKM-Tagung 1944, Beck collection

FunkHE u1: Abwehr wireless

FuPEc2: NVK research, Landsberg-Navigationstagung

FuSE62, FuSE65: Würzburg, Exhibits, Bruneval Report TRE, Patents DE, Subject ref dbase, OKM-Tagung 1944 (Togo), NEG62, Würzburg set-up, Archive displays, Rehbock, Auxiliary-gear, Report T 11-219, Archives PP

FuZG64(Rehbock): Radar test-gear, Patents DE, Subject ref dbase, Na-Liste, Rehbock, Würzburg set-up, Archives PP

Gerber (Carl Zeiss Jena): Precision Time paper of 2000

Giebe (PTR): Precision Time paper of 2000

G.Kdos (gKdos) 626 of 20 April 1945: Schlüssel M4 Dok

G-Schreiber T52d, Siemens Fernmelde Maschine T 52d, Telex: G-Schreiber T52d, Web-links (Mr D. Rijmenants website)

Geheimschreiber T52d (T 52 d): G-Schreiber T52d, Archive displays, Web-links (Mr D. Rijmenants website)

GEMA (Gema): NVK research, Patents DE, Subject ref dbase, Seetakt, AGR-Protocols, OKM-Tagung 1944, Jagdschloss FuG404, Report TME 11-219

German 441 lines TV standard of 1938: TFT 441 lines 1938

Giebe (PTR): Time paper

G1,2K: Archive displays,

GG400: Archive PP

Gleichwellenrundfunk: ENT1929Heft4, ENT various, TFT Band 31 Heft 5, (+Luxemburg effect)

GM2307 (Philips): Na-Liste

GM2881 (Philips): Na-Liste

GM2882 (Philips): Na-Liste

GM3152 -GM3153-GM3155 (Philips): Na-Liste

GM4140 (Philips): Na-Liste, Archives PP1

GM4196 (Philips): Na-Liste

Goerz Dr.-Ing.: TV tech 1938-1942, 1Band Heft 4 Juli 1939, 1Band Heft 5 August 1939

Goliath (VLF TX): Huff Duff

Goubau G.: GBN-ZWB Antenne-Tagung of 1943

Groot de Dr.: Dijkstra-Malabar, Handbooks and papers

Gruppenhorchgerät (GHG): Sonar-GHG, OKM-Tagung 1944

Gundelach Röhren (valves = tubes): Handbooks

H2/7 (Philips): Archives PP1

Ha5K39: Archives PP1

Ha15K42: Archives PP1

Habann Röhre (valve)(magnetron): Handbooks (Berlin)+(Telefunken Zeitung), Patents DE, Subject ref dbase, AGR-Protocols, TFT Hollmann

Hahn W.: GBN-ZWB Antenne-Tagung of 1943

Halske Johann Georg (Siemens & Halske): Hansbooks, Halske

Ham (licensed radio amateurs): DASD-CQ 1937 various

Handreck H. (Hescho): ATM Z944-3, Synopsis, Subject ref dbase, German Patent dBase selection

Hartmann & Braum (H&B): Handbooks, papers and product information, Kootwijk event

Hans Ferdinand Mayer: Oslo report

Hasselbeck W.: GBN-ZWB Antenne-Tagung of 1943

Hausmitteilungen Fernseh AG (G.m.b.H.): Fernseh Hausmitteilungen

Hayland (Doppler): US1981884

Heegner Kurt: Kurt Heegner

Hellschreiber: Handbooks and papers 'Rudolf Hell Company', Subject ref dbase

Heinrich Mannheim: Radar I, Düsseldorf-Aachen-Veron  talk 2006

Hermes-Hermion (Hermine): Navigational aids, KTB-Chef-TLR, Patents DE

Hescho: Synopsis, Handbooks, Hescho product guide 1939, ATM Z944-3, KTB-Chef-TLR part 8, Patents DE, Subject ref dbase, CIOS III-1 Philips plant Eindhoven, DEHS 2008 paper

HEZ = Haupt-Einflugzeichen: Navigational aids

HF/DF: NVK research, Huff Duff, Handbooks, Patents DE, Subject ref dbase, Landsberg-Navigationstagung, DEHS 2008 paper, Huff-Duff

HMZL = VO34 (Philips): Archives PP1

Hoelzer: V2 analog computer

Hohentwiel FuG200 transmitter technology (Hans Jucker CH): FuG200 Jucker, Handbooks, Patents DE, OKM-Tagung 1944, Curious archive displays, RD12Tf

Hollerith statistics(machines): Bios 273 statistics, FIAT-CIOS-BIOS, Subject ref dbase

Hollmann (Hans Erich): Handbooks papers and product information, Patents DE, Subject ref dbase, TFT Hollmann

Hondros: Naxos, FTM dielectric wires and wave guides

HP time domain reflectometer: Measurements

HRO tuning dial (knob): Radio Mentor

Huff Duff (HF/DF - high frequency direction finder)(Funkpeilung): Huff Duff

Hülsmeyer (Huelsmeyer): Radar I, Hülsmeyer's voice mp3, Archive display, Hülsmeyer's early radar commitments (PDF, based on a Power Point presentation), Patents DE, Subject ref dbase, Düsseldorf-Aachen-Veron talk 2006 pdf ppt,

Hülsmeyer's receiver replica: Archive displays

Hütten Peiler II (Peil Hütte): Archives PP1

IEC quartz parameter measurements: Measurements

IG62 (Igel): Archives PP, Würzburg

Igelit: CIOS XXVI-24

Inkavi (instruction booklet): Handbooks, papers and product information, Na-Liste

Introduction page(Startpagina) (of our website):

Isolavi (H&B): Na-Liste

Jagdschloss FuG 404 radar: RCM versus Wurzburg, Jagdschloss(Jagdschloß) FuG404

JLO - Jägerleitoffizier:  Navigational aids

Jones Reginald Victor (R.V.): Oslo report

Josephson standaard: Measurements

Jucker Hans: Jucker Frequenz- und Zeitmessung, Lichtenstein, Phased array basics, FuG 200 Hohentwiel, B17 APS-15 radar, Funkhöhenmesse FuG101a

Kapavi (H&B): Na-Liste

Kapsch (various DF receivers): Abwehr wireless

Kathodophon: ENT1929Heft1, Patents DE, Weblinks

KDH (R&S): Na-Liste

KDN (R&S): Na-Liste

Kelvin elektrometer: Measurements

Keramik: ATM Z944-3, Synopsis, Handbooks, papers and product information, Patents DE, CIOS III-1 Philips plant Eindhoven, DEHS 2008 paper

Klöpfer W.: GBN-ZWB Antenne-Tagung of 1943

Klystron: TFT Hollmann

Knickebein (Crooked leg): Navigational aids, Archive displays, Oslo report

Köln (Koeln) E 52: Synopsis, Handbooks, KTB-Chef-TLR, Patents DE, Subject ref dbase, Köln E52 scale re-calibration, Köln E52 (Koeln) page, Krachtöter (noise limiter patent), LO Boucherot circuit (patent), E52 prototype V1, Patent Auszüge, Köln restoration, Köln Ersatzteilkiste(spare part box)

Kompass-Sender (Telefunken 1907): Navigational aids, Patents DE

Kompensator: Measurements, Handbooks, Diesselhorst, ENT various

Koomans: Dijkstra Malabar

Kootwijk: Kootwijk archives, Measurements, Malabar in Teletunkenzeitung of 1925

Kootwijk event 25 November 2000: Measurements

Koppelkarte: Landsberg-Navigationstagung

Korfu E351(radar search receiver): Korfu

Korn A.: Lorenz 50 Jahre

Korn Willi (Willy): Enigma related patents and documents

Koulikoff = Y-Verfahren:  Navigational aids

Krabbe: Line communications

Krachtöter (noise limiter or "noise killer" of Köln E52a): Krachtöter patent

Kramar: Navigational aids, ENT various, Patents DE

Kraus A.: GBN-ZWB Antenne-Tagung of 1943

Kreuzeck (Jagdschloss receiver): Jagdschloss FuG404

KRHT (R&S): Na-Liste

KSDV (R&S): Na-Liste

Kühnhold: NVK research, Subject ref dbase, Wilhelm Runge's letter to Fritz Trenkle, OKM-Tagung 1944

Kulm E 54 (Luft-Boden-Programm): Handbooks

Kupferoxydul-Gleichrichter (Siemens & Halske): ATM Various

Kurier: Huff Duff, Web-links (Mr D. Rijmenants website)

Kurt Heegner: Kurt Heegner

Kwarts (Quartz)(Quarz) impedantie wobbelen: Measurements, Subject ref dbase, Time paper, Alblas quartz collection (Dutch PTT), DEHS 2008 paper

KwEa: Synopsis, Handbooks papers and productinformation

KWS1,5B: Archive displays

Lämmchen K.: GBN-ZWB Antenne-Tagung of 1943

Landefunkfeuer: Navigational aids, Patents DE

Laus (Würzlaus): RCM versus Wurzburg, Wuerzburg (Würzburg), Subject ref dbase

LB50: Handbooks, Patents DE

LD15 (Röhre, valve): Einheitsröhre

LDH (R&S): Na-Liste

Lecher Institute: Ernst Lecher Institut, Handbooks, Subject ref dbase

Leipzig E51: E52 prototype V1, E51 bis 53 Ersatzteilkiste

Leitfunknetz: DEHS 2008 paper, Huff-Duff

Leitstrahlempfänger: Landsberg-Navigationstagung

Leuchtquarze (Luminous quartz): Measurements, Luminous quartz, Patents DE

LFF: Navigational aids, Patents DE

LG200 (Röhre, valve): Einheitsröhre

Lichtbild_Kurzwelle (DF-receiver): NVK research, Landsberg-Navigationstagung

Lichtstrahl zu Lichtenstein Radar (Telefunken): Na-Liste

Lichtenstein FuG202 (FuG 202b/c): Report TME 11-219, Airborne radar 1942-1945, Beck collection, Lichtenstein SN2 antenna construction

Lichtenstein Li.SN2: Archive displays, KTB-Chef-TLR, Lichtenstein FuG202-FuG220 SN2 & Phased array basics Hans Jucker, Airborne radar technology, Beck collection, Lichtenstein SN2 antenna construction principles

Lichtkohle: NVK research

Lilienthal - Gesellschaft: Handbooks and papers

LMP2 (S&H): Na-Liste

LMS10 vs CV64 (Berlin magnetron versus British H2S type: LMS10 vs CV64, Berlin radar, AGR-Protocols, H-J Fischer

Ln20232 (=Frequenzpüfgerät NEG62 zum Würzburg): NEG62

Ln20944 (=NEG62, zum Würzburg): NEG62

Ln21000 (2100X) Köln (Koeln): E52

Ln28900 (Knickbein FuG28a): Exhibits, Archive displays

Ln29457: Naxos, AGR-Protocols, OKM-Tagung 1944, Beck collection

Ln30723 (Ersatzteilkiste): Köln E52 (Koeln), and Ulm E53 spare part box

Lo1UK35 (test-set, MNArs-Hamburg): Na-Liste

Lo40K39d: Archives PP1

Lo70KL40: Archive displays

Lo150FK38: Abwehr wireless

LOG 1 (lusoscillograaf)(Schleifenoszillograph) S&H: Measurements

Lorenz Carl: Lorenz 50 Jahre

Lorenz in der Luftfahrt: Lorenz 50 Jahre, Patents DE

Lothar Rohde (R&S): Time paper

LRHT (R&S): Na-Liste

Luminous quartz: Measurements, Luminous quartz, Patents DE

Luxemburg effekt: Luxemburg effect, FTF 1942 Luxemburg-Effekt

LV1 (Röhre, valve): Einheitsröhre

LV3 (Röhre, valve): Einheitsröhre

LV13 (Röhre, valve): Einheitsröhre

M1K (=AS60): Exhibits, Archive displays

Maschinensender: Handbooks, Telefunken-Zeitung of 1925

Magnetron: Handbooks, (Berlin)+(Telefunken Zeitung), Radar II, Patents DE, Subject ref dbase, Airborne radar technology, AGR-Protocols, H-J Fischer (strapping), Strapping theory, US2546870, Boot and Randall's famous mcavity magnetron patents, Cold-strapping-gear; TFT Hollmann, RD2Md, CIOS III-1 Philips plant Eindhoven

Malabar Radio: Dijkstra-Malabar, Handbooks and papers, Telefunkenzeitung of 1925

Mallach: Naxos

Mammut (Hoarding): Report T 11-219

Mannheim (Heinrich): Radar I, Duesseldorf-Aachen-Veron talk 2006 PDF ppt,

Mannheim radar FuMG64: Beck collection

Marabu (proximity fuse): Fug 101a

Monavi (H&B): Na-Liste

Massolle (Triergon = Tri-Ergon): Weblinks

"Mavo meters" : Na-Liste

Max-A and Max-P: Max-A

Max Planck: Annalen der Physik

Mayer Hans Ferdinand: Oslo report

MD 61 (SADIR): Na-Liste

M.Dv.Nr.32/1 (to Enigna type M4): Handbooks

Measurement technolgy: Measurements, ATM various, Handbooks papers and product information

Mesny (Chireix): Hollmann, Subject ref dbase

Messinstrumente: Kootwijk event, ATM various, Handbooks papers and product information, Na-Liste, Archives 3!

Metox: Huff Duff, OKM-Tagung 1944

Mikrofone (Mikrofon), microphones: Mikrofone, Sonar-GHG, Radio Mentor, Kathodophon, Patents DE, Siemens SM7a, Johann Philipp Reis,  Reisz (Reiss) Microphone, Reis microphone of 1861-1865

Mischgerät (V2=A4): Archive displays, Exhibits, V2 analog computer

Morseschreiber Hell (Rudolf Hell Festschrift of 1939): Handbooks and papers, Patents DE

Moser W.: GBN-ZWB Antenne-Tagung of 1943

Moullin Voltmeter of Cambridge Instruments: Cambridge catalogue

Ms179A (Ms 179-A): Na-Liste

MTI (Moving target indication: US1981884, Würzburg(Wuerzburg - Wurzburg), accurate Frequency & time measurements by SWiss Airforce

MÜG. Marine (Morse-Übungsgerät): Exhibits, Archive displays

Multavi: Handbooks, papers and product information, Na-Liste

Multizer (S&H): Na-Liste

MZSE (Na 220920): Schlüssel M4

Na220920 (Schreibzusatz MZSE, Schreibmax): Schlüssel M4

Na-Liste (German Navy stock-list of December 1944): Na-Liste

Naval enigma (submarine) type M4: Schlüssel M4

Navigation: Navigational aids, Patents DE, Subject ref dbase, AGR-Protocols, Oslo report

Naxos: Naxos, Exhibits, Subject ref dbase, AGR-Protocols, OKM-Tagung 1944, Beck collection

NEG62 (NEG 62) Nullpunkteichgerät: NEG62, Na-Liste, Archives PP

Netheler H.: GBN-ZWB Antenne-Tagung of 1943

Normaalelementen (Normalelement): Measurements, Subject ref dbase, Archives 3!

Normaalweerstand(Normalwiderstand): Measurements

Normameter: Na-Liste

Nullode (elektrodenlose Elektronenröhre): Patents DE, Subject ref dbase, Airborne radar technology, AGR-Protocols

Nürnberg (ECCM of Würzburg): RCM versus Wurzburg, Wuerzburg, Subject ref dbase, Report T 11-219

NVA: NVK research

NVK: NVK research, AGR-Protocols, Landsberg-Navigationstagung, OKM-Tagung 1944

NWH (R&S): Na-Liste

NWU (R&S): Na-Liste: Archives PP1

Olga II (B400UK43): Archives PP, Würzburg

Oscilloscope, Oszillograpf (Summary to the history of oscilloscopes): ATM Various (Oszillograph, 2 x)

Oslo report: Oslo report

Ovameter: Na-Liste

Palm (H&B) multizellular system (elektrostatische voltmeter): Kootwijk event

Patents(various)(history and legislation), selection of German patent numbers: Patents DE, Handbooks (two Siemens papers), Patentgesetz 1936, Patent-history, Airborne radar technology, Enigma related patents and documents, VO 15.1.1944, Kurt Heegner

PG101 (Gema): Na-Liste

PG104 (Gema): Na-Liste

Phantom ciruits: Line communications

Phased array basics: Phased array basics, Sonar GHG, Landsberg-Navigationstagung, Jagdschloss FuG404

PHP21/22 (Philips): Na-Liste, CIOS III-1 Philips plant Eindhoven

Pierce: Precision Time paper of 2000

Pintsch: Handbooks (Resotank HB 14), Patents DE, AGR-Protocols, CIOS III-1 Philips plant Eindhoven

Pintschregler: Report T 11-219, Beck collection

Planck Max: Annalen der Physik

Ploesti (Rumania, oil fields): RCM versus Wurzburg, KTB-Chef-TLR

Polygon meter: Na-Liste

Polymeter: Na-Liste

Polyrod: Naxos, Exhibits, Handbooks, Airborne radar technology, AGR-Protocols, Beck collection

Pontavi (H&B): Na-Liste

Poulsen transmitters: Lorenz 50 Jahre, Dijkstra Malabar, Malabar Pictures

Poulsen: Annalen der Physik(year 1900)

PPI: Jagdschloss FuG404, Berlin FuG224, Beck collection

Proximity fuse Marabu: Funkhöhenmesser FuG 101a

Prüftafel: Exhibits, Archive displays, Airborne radar technology, Beck collection

PT10: Exhibits, Archives PP3

PTK 2 (Gema): Na-Liste

PTN 1 (Gema): Na-Liste

PTR: Measurements, Subject ref dbase, Time paper

Pungsdrossel (Pungs choke): Lorenz 50 Jahre

Quantum-Hall effect: Measurements

Quartz (Quarz): Measurements, Patents DE, Subject ref dbase, Hans Jucker Frequenz- und Zeitmessungen, TFT vario Quarz, Precision Time paper of year 2000, Kurt Heegner, Alblas collection (Dutch PTT)

Radar (Funkmeß - Funkmess): Wuerzburg (Würzburg), Exhibits, Archive displays, NVK research, Radar I, Radar II, Ernst Lecher Institute, Lichtenstein Li.SN2, FTM  Radar 1937, RCM versus Wurzburg, KTB-Chef-TLR, Patents DE, Subject ref dbase, Lichtenstein radars (by Hans Jucker), Wilhelm Runge's letter to Fritz Trenkle, Airborne radar technology, Düsseldorf-Aachen (Duesseldorf) talk pdf-ppt, AGR-Protocols, B-17G radar, Oslo report, Boot & Randall's famous magnetron cavity patents, OKM-Tagung 1944. Archive displays, NEG62, Würzburg set-up, Rehbock, auxiliary gear, Würzburg set-up, Jagdschloss FuG404, Report T 11-219, US1981884, Curious archive displays, Archives PP, Beck collection, accurate Frequency & time measurements by SWiss Airforce, CIOS III-1 Philips plant Eindhoven, CIOS XXVI-24, gKdos 2120/44

Radiaal magnetisch veld: Measurements

Radio amateurs (HAMs): DASD-CQ 1937 various, Ernst Sachs' letter addressed to Heinrich Himmler, Helmut Liebich's (DL1OY) letter to a friend, DL1IX letter, DASD Various 1939-44

Randall and Boot: Boot and Randall's famous cavity magnetron patents

Radio Laboratorium quartz crystal production of the Dutch PTT: Alblas quartz collection (Dutch PTT)

RD2Md-Rd2Md-Rd2Md2 split-anode magnetron of the Berlin FuG224 receiver and Korf receiver: RD2Md, Beck collection, Korfu

RD12Tf (FuG200) = Hohentwiel push-pull valve stage): Curious archive displays, Archives PP2

RDH (R&S): Na-Liste

Redgment: NVK research

Rehbock: Radar test-gear, Patents DE, Subject ref dbase, AGR-Protocols, Würzburg set-up, Na-Liste, Archives PP, Precision Time paper of 2000

Reis Johann Philipp 1834-1874 (Mikrofon - microphone): ENT various, Reis microphone of 1861-1865

Reisz (Reiss) Mikrophon (Mikrofon)(microphone): Curios archive displays

Rekstrookjes (strain gauge): Measurements

Rel msbr 14a (S&H): Na-Liste

Rel msbr 20a (S&H): Na-Liste

Rel mse 48a: Na-Liste

Rel mse 57a (S&H): Na-Liste

Rel mse 124A (S&H): Na-Liste

Rel.Beschr.mse.755a: Handbooks

Rel.mse.2030a: Exhibits, Handbooks, Siemens cat. 1940

Rel msv 104a (S&H): Na-Liste

Rel send 7a - 7b - 7c (S&H): Na-Liste, Archives PP1

Rel send 11b (S&H): Na-Liste

Rel send 14A (S&H): Na-Liste

Rel send 22b (S&H): Na-Liste

Rel send 2005b (S&H): Na-Liste

Rel sum 31b (S&H): Na-Liste

Rel sum 44a (S&H): Na-Liste

Rel sum 48a (S&H): Na-Liste

Rel sum 49a (S&H): Na-Liste

Rel.xxx.xxx: Siemens telephone catalogue 1940

Resotank (HB14): Handbooks

Rice (Chester W): Radar II, Patents DE, TFT Hollmann

Richtfunkverkehr: Line communications

Righi: Hülsmeyer (Radar I paper), Hollmann

Rindfleisch R.: GBN-ZWB Antenne-Tagung of 1943, Navigations-Tagung

Ringkwarts (Ringquartz)(Ringquarz): Measurements

RLP (R&S): Na-Liste

RN-3 (Italy): Abwehr wireless

RN-6 (Nova radio and Natali): Abwehr wireless

Rohde (Lothar): Time paper

Rohde & Schwarz (R&S): Synopsis, PTE product guide 1938, Patents DE, Subject ref dbase, Na-Liste, Time paper, CIOS III-1 Philips plant Eindhoven

Röhren (Roehren)(valves = tubes): Luftfahrtröhren, Röhren Hinweise, Patents DE, Hollmann, AGR-Protocols, TFT Hollmann, RD12Tf, Rd2Md, Archives PP 2, CIOS III-1 Philips plant Eindhoven, DEHS 2008 paper

Röhren applikations theorie(Röhren Hinweise): (valve)Application theory, TFT Hollmann

Rolf Wigand (photo): DASD-CQ 1937

Röntgen W.C.: Annalen der Physik(1898)

Röpke (Karl): Enigma related patents and documents

RPG II 38 (Junker): Röntgen W.C.: Na-Liste

RPG4 (Bittorf&Funke): Na-Liste

RS20M: Abwehr wireless

Rubidium standard: Jucker Frequenz- und Zeitmessung

Rudolf (DMG3a): Line communications

Rudolf Hell Festschrift: Handbooks and papers, Patents DE

Rufzeichen-Liste German call-sign list of 1937! (Ham = OM) of 1937: DASD-CQ 1937

Rukop: Handbooks, papers and product information

Runge W: Handbooks, Patents DE, Runge Brief, AGR-Protocols

RV = Richtfunkverkehr: Line communications,

RVQ (R&S PTE): Archives PP1

S85/14: Abwehr wireless

S89/80: Abwehr wireless

S90/40: Abwehr wireless

S245 (Kriegsmarine spezial Meßsender): Archives PP

Sachs (Ernst): DASD-CQ 1937 various, Sachs' letter addressed to Heinrich Himmler, Helmut Liebich's (DL1OY) letter, DASD-CQ 1939-44

Samuel tube (valve): TFT Hollmann

Sayers James, the inventor of magnetron strapping: US2546870

Schaltuhr M32 (M 32)(fog): Schaltuhr

Scheibe (PTR): Time paper

Scheller (Otto): Navigational aids, ENT various, Patents DE

Schellhoss (Schellhoß): NVK research, Patents DE, Landsberg-Navigationstagung

Scherbius (Arthur): Schreib Enigma, Enigma patents

Schering (galvanometer and bridge): Schering, ATM J921-3

Schlicke H.: GBN-ZWB Antenne-Tagung of 1943

Schlüssel M 4: Enigma Handbook, Huff-Duff, Schlüssel M4

Schornsteinfeger: CIOS XXVI-24

Schreibmax (Schreibzusatz MZSE): Huff Duff, Schlüssel M4

Schwarzsender, German clandistine wireless operator of 1937 Mr Timmermann: DASD-CQ 1937

Schwingkontakt-Gleichrichter (AEG): ATM various

SE92/3: Abwehr wireless

SE98/3: Abwehr wireless

SE99/10: Abwehr wireless

SE108/3: Abwehr wireless

SE108/10: Abwehr wireless

Securitas (Gewerkschaft)&(N.V. Ingenieursbureau): Enigma related patents and documents, G-Schreib Enigma

Seetakt, early model, push-pull transmitter with TS1 and TS1a valves (tubes): Seetakt, AGR-Protocols, OKM-Tagung 1944, Report T 11-219,

Seeteufel: DASD-CQ 1937

sFK: Line communicatios, Patents DE

SG216: Report T 11-219, Beck collection

SG224 (Berlin Radar): Exhibits, Handbooks, Airborne radar technology, AGR-Protocols, Beck collection

SHK (R&S): Na-Liste

Sichtgerät: Exhibits, Archive displays, Patents DE, AGR-Protocols, Deckname Würzburg, Würzburg set-up, Rehbock, Report T 11-219, Archives PP, Beck collection

Siemens firm (consider also our main Introduction, or Index, page): Handbooks papers and product information, Synopsis, Wuerzburg, Luft-Boden-Programm, Measurments (Kootwijk event), Archive Displays, Siemens product catalogue 1940, Exhibits, Patents DE, Subject ref dbase, Airborne radar technology, AGR-Protocols, Oslo report, Na-Liste, G-Schreiber T52d, Jagdschloss FuG404, FTM Telex 1942, Universal-Schleifen-Oszillograph, Beck collection; CIOS III-1 Philips plant Eindhoven

Siemens-Verdan (Telex system): Handbooks, Subject ref dbase

SFM (=Siemens Fernschreibmaschine)(Siemens Telex = Fernschreiber): Archive displays, Patents DE

SFM T 52d (G-Schreiber): Archive displays, Siemens Geheimschreiber T52d

Skiatron (CRT)(Blauschrift Röhre): Handbooks, Patents DE

SLD (R&S): Na-Liste

Slotted line: Measurements

SM7a (Siemens microphone): Radio Mentor, Patents DE

SML (R&S): Na-Liste

SMP (R&S): Na-Liste

SMPK (R&S): Na-Liste

Sonar: Sonar-GHG, OKM-Tagung 1944

Sonne (=Consol): Navigational aids, Patents DE, Subject ref dbase

Speer (Ministry): Bios17 Wagenfuhr, KTB-Chef-TLR, Bios 273 statistics, FIAT-CIOS-BIOS, Subject ref dbase

Spektrometer (audio+Ton): Exhibits, Handbooks

Spiral four: Line communications, Patents DE

Standaardisatie tijdstabel: Measurements

Standaardweerstand (Otto Wolff)(Normalwiderstand): Measurements, Subject ref dbase

Standaardcel (Clark & Weston): Measurements

Steatit-Magnesia: Handbooks, papers and product information, ATM Z944-3, Patents DE

Stealth for U-boats (Sumpf)(U-Boote): OKM-Tagung 1944, Subject reference dBase (keyword: Sumpf)

Stemag = Steatit-Magnesia: Handbooks, papers and product information, ATM Z944-3

Stenzel (Stenzel Kompensator): NVK research, Sonar GHG, ENT1929Heft5, Landberg/Lech- Funkpeil Tagung on navigation,

Sternmodulator: AEG Sternmodulator

Sternschreiber (Jagdschloß PPI): Jagdschloss FuG404

Sternverseilung: Line communications, Patents DE

Stiehlstrahler: Naxos, Handbooks, Exhibits, Subject ref dbase, Beck collection

STJ (R&S): Na-Liste

STS (R&S): Na-Liste

Strapping (of cavity magnetrons): H-J Fischer, Strapping theory, Cold-strapping-gear

STMG 33 (Störmeßgerät): Handbooks, papers and product information, STMG 1867-1868

STMG 67, STM 1867 + Typ Su.G.1868 (störsuch und Störmeßgerät: STMG 1867-1868, Na-Liste

Strain gauges: Measurements

Staku (Stahl-Kupfer) antenna material: GBN-ZWB Antenne-Tagung of 1943

Strapping of magnetron: Strapping theory, Cold-strapping-gear, Sayer's patent on cavity strapping US2546870

Stuttgart (Richtfunk): Line communications

SÜ62d (Urechse): Archives PP

SUG1868 (S&H): Na-Liste, STMG 1867-1868

Sumpf(Stealth): Patents DE, FIAT-CIOS-BIOS, OKM-Tagung 1944, CIOS XXVI-24

SZG64: Rehbock

T8PL39: Archives PP1

T52d (Siemens G-Schreiber): T 52d Geheimschreiber

T200FK39 (u-boat transmitter)(U-Boot Sender): Huff Duff, Synopsis, Patents DE, Exhibits, T 200 FK 39, Archive displays

Talking beacon: Navigational aids, Patents DE

Tangenten Boussole: Measurements

Tape recorder (Tonbandgerät): Exhibits, Handbooks, Patents DE

Tatja (Tatjana) van Vark (most beautiful selfmade artefacts): Weblinks (URLs)

Taunus (ECCM of Würzburg): RCM versus Wurzburg, Wuerzburg, Report T 11-219

Taylor (MTI-Doppler modulation detection): US1981884

Telefunken Röhren, valve(tube) data : Transmitter valves RS type, Telefunken low power valves, Luftfahrtröhren, Application theory, Patents DE, AGR-Protocols, Exhibits, Archive displays, Kurt Heegner

Telephone: Line communications, Siemens cat. 1940, Patents DE, CIOS III-1 Philips plant Eindhoven, WT40 telex interface

Television: TV history, Patents DE, TFT E1 Fernseher 1939, CIOS III-1 Philips plant Eindhoven

Telex (=Fernschreiber): Line communications; Handbooks, Patents DE, G-Schreiber T52d, FTM Telex 1942, WT40 telex interface

Tempa (Hescho dielectric): Hescho product guide, ATM Z944-3

Tetradiode: AEG Sternmodulator

Tfb-2: Archives PP1

TFT: Line communicatios, Oslo report, TV E1 and 441 lines standard of 1938, Vario Quarz, Gleichwellenrundfunk and Luxemburg effekt, Sternmodulator, TFT Hollmann

Thermometer (PTR): Quecksilberthermometer, Mercury thermometer (Hg), Subject ref dbase

Thermometer (History of Expansion Thermometers): ATM J210-1

Thomson brug (Bridge) (Otto Wolff): Measurements

Thyratron (Thyratron various): Evolution of Hydrogen Thyratron, CIOS III-1 Philips plant Eindhoven

Time measurements: Time paper

TME 11-219: Report T 11-219

Tonfrequenz-Spektrometer: Handbooks, Siemens cat. 1940

Tonschreiber: Exhibits, Handbooks, Patents DE

TOR: Archive displays

TR (R&S): Na-Liste

Trägerfrequenzgerät: Line communications

Triftröhre: TFT Hollmann, CIOS III-1 Philips plant Eindhoven

TV History of German R&D 1930-1945: