technical index

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10a Introduction to German World War II Radio Equipment (FuG 10 = FuG X)
10b. Telefunken World War II Universal TRF receiver Torn.E.b [PA0SE]
11a German WWII radio communication equipment, see page e
11c (20c) List of equipment covered in the later chapters
11d (20d) Special equipment/accessories, Mains connectors for E52, NA6a, T9K39
11e (20f) PKA2 Künstliche antenne, Leuchtquarze
12a. German World War II Radio Equipment - Köln E52 receiver - part 1 (PA0SE Dick Rolema)
12b. German World War II Radio Equipment - Köln E52 receiver - part 2 (PA0SE Dick Rolema)
12c. Lorenz Shortwave Receiver Lo6K39a (Lo6L39), The ultimate TRF set [PA0SE]
12d. Telefunken World War II Superheterodyne Receiver Kw.E.a (Lw.E.a) [PA0SE]
17s (23g) Tfk E381S
17t (23g) Tfk Spez. 801
21a German radio communication equipment
22a Torn E.b - LF-MF-HF General purpose receiver, Tornisterempfänger Spez 445 Bs

page-22b KwEa,
Differences in IF-section between KwEa and LwEa,
Function selectors inside Kw.E.a.,
Optimizing Kw.E.a or not,
Antenna connection for coax cable with LwEa and KwEa receivers.
AM/CW/SSB detector in Kw.E.a is the Audion-type,
AGC amplifier in Kw.E.a,
BFO circuit in Kw.E.a. and added amplifier for ssb reception,
Connecting a loadspeaker to Kw:E.a, Lw.E.a, Torn.E.b, Fu.H.E.c, Ukw.E.e etc,
Audio level meter for Kw.E.a,

22c: LwEa, T8PL39. AF100 compared to RV12P2000, Functional circuits: T8PL39 vs. Lw.E.a.
22h FuHEc, FuHEu Wehrmacht monitoring and DF receivers
23a E10K, E10L (FuG 10) Aircraft receivers
23e EZ6 Aircraft homing receiver (ref. Frederick Emmons Terman, Sc.D 1937)
23g AQ2/2 receiver (part of transmitter/receiver)
23p Philips H2L/7 - straight communication receiver
23q Philips HMZL34 = VO34 (Vliegtuig Ontvanger)
23r Philips DR25, DR38, DR42, DR78, DR85
23s Philips BX925
24a E52 Köln - General communication receiver
24b MwEc - Panzer MF receiver
24c T9K39 - Marine communication receiver
24l Lo6K39, Lo6L39 - Marine straight communication RX for LF and HF.
24t UkWEe, UkwEh - Panzer 24-32MHz receivers
24z Blindlandingsutstyr
25a Torn Fu.b1, Torn.Fu.c - manpack transceivers
25b TornFub1 mods
25d Torn Fu.d2 VHF transceiver
25f. Vb.K (Fbg.bf) remote control unit for Tornisterfunkgeräte b1, c und f
25h Lo1UK35 Marine Fritz
25m Feld.Fu.b - handi-talkies
25r Radione equipment
28a Dynamotors
28b EWb, EW.c - dc-dc inverters (see also e97)
28c NA6/NA6a Netz Anschlußgerät für KwEa und LwEa, see also e96
29a FuG25a - friend or foe identifier for aircraft
29b FuG16 - aircraft transceiver
29c FuG17 - aircraft transceiver, Lo10UK39?
30a Lo40K39 - Marine transmitter
30b Modulation notes for RL12P35, LS50
30e S10K/S10L - (FuG 10) Aircraft LF/HF transmitters
30g 10WSc, 20WSd - Panzer transmitter
30m 80W.S.a - Panzer transmitter

31a 15w-transceiver
Aufbau des 15-Watt Sender-Empfängers b für Umformerbetrieb im Funk-Kraftwagen
Nettdel for 15W.S.E.a (og 15W.S.E.b) AR nr 9/52
LA4KC's power supply for 15WSEa (AR nr 9/52)
LA6U's power supply (AR nr 9/52)
LA5B's power supply (AR nr 9/52)
Litt mer om 15 W.S. E.-settet (AR nr 11/53 s.157)
15W.SE-settet" (om endringer til RV12P2000- og RL12P10-rør)(AR nr 6/58) side 89-90
Å forandre settet til AC-drift byr ikke på særlig store probl., idet RV12P2000 og RL12P10 passer rett i rørholderne.
HF-rørets katode chassisforbindes, men blanderrørets katode må IKKE jordes
Manual was available from LA1P Christen Syverrud (in 1970)

31g Ha5K39 Power supply
31h Hagenuk Ha5K39 Small marine HF transceiver
31j Jo20K42
33a Radio link equipment [SEG2T, NTG2], see also info on page k61
33b carrier frequency equipment (Trägerfrequenzgeräte)
34a Flakabnahmekammer, Mutterkompass
35a. German Radar equipment, oscilloscope display for WR

43a (e43) Signal detectors in ex-German receivers

Torn.E.b. regenerative detector (LA7MI)
MwEc BFO
Mw.E.c detector
T8PL39 Detector
T9K39 BFO
E52 Detectors

44a opto-communication equipment
52 French radio communication equipment
53a Philips equipment used by the Germans during WW2
61. US army radio surplus equipment
62. Further Boatanchors
62. National HRO-50T + RCA LF RX
63 British army radio surplus
64 A Russian transceiver

91-93 N/U
94 BA-topics list
95 List of technical topics
96 N/U
[97 about having a hobby]
98 N/U
99 N/U
896 Liste over etiketter som er brukt
897 N/A
898 temp. page
900 (897) ["Skeinelöyse köyregreier"]

901 Schaltbilder I
Schaltbild Feldfernschreiber 24a-32
Schaltbild Ukw.E.e
Schaltbild Torn.E.b/24b-305
Torn.Fu.f: Zusammengesetztes Schaltbild des Senders und Empfängers (Torn.Fu.b1 und Torn.Fu.c)

902 Schaltbilder II
Ln21021 Schwabenland (Luftwaffe version, Marine version is EO 8268
Schaltbild für Lo1UK35
Schaltbild für Lo6K39/Lo6L39

903 Schaltbilder III
Radione ER1a
Radione RS-20 transmitter
E382bF aircraft receiver (picture)

904 Schaltbilder IV
Philips H2L/7 straight receiver
Philips H2/L7 component location
Radione_1950_R2-6V_sch.png
Radione R2 with american loctal tubes (without BFO)
Prahn 791/U

905 Schaltbild V
Siemens D2006 block diagram
Temic U4314 B-FP Log. RX signal strength indicator/AM-demodulator
µPC10737H (UPC1037H) Equivalent circuit (Nippon Electric Co Ltd. Double balanced modulator)

993 Norwegian Soup Group - Norsk supperåd
994 this page (more detailed page info)
995 List of pages
996 Hellschreiber/Hellskriver
998 disconinued page, see email.htm
999 En tom side/The Empty's page
a Aerial experiments (Bearley Radio, S-O-A, Warks.)

a1 HF antennas and ATU

80m RX frame-aerial
ATU for 30m endfed halfwave sloper
ATU for mobile operation
Direction finding antenna for 10m band (DJ1XK)
End-fed sloper for 30m band
Erfahrungsberichte ueber Entwicklung und Einsatz von Dopplerpeilern
Home made transition to BNC
KW E-Zee type "Z-match" modifications
My old Z-match, built in 1972 (type: W1CJL)
Simple impedance measure bridge
Use of Fernsehen connectors to choose HF aerials
W1CJL type Z-match (QST May 55)

a71 VHF antennas for CW/SSB operation

Alford Slot and "Abe Lincoln" mobile antenna,
Balun and connections to coax cables using appliance electrical box
Bow horn antenna (Winkel Dipol) for 2m SSB/CW mobile
calculated version of the "6m SQUALO"
Secondary applications of "Coke" bottles for weatherproofing coax connectors
SM6ESG's Halo aerials
The ever popular HALO ("Squalo" according to SM6ESG)

a72 2m weak signal antennas

Constructing LA8WF's bow horn antenna
SM6ESG's mobil mount

a79 2m local (FM) antenna

Kathrein RS2HV 2m antenne

auk auctions and meetings
auk1 auctions and meetings

b Amateur radio rigs and mods.
b8 ......about providing manuals
b9 ..... Key click problems and importance of intelligibility - even on SSB!
b21... .FT-901/902 Mods
b23:... FT-7 mods
b25 ....Icom IC-202 2m SSB/CW transceiver, and IF for microwave transverters
b26.....Sommerkamp transmitter

b29

Trio/Kenwood TR-7010, TS-500, VFO-40

b31..... Early Drake receivers
b32 .... Drake Transceiver mods

b33
Proper pentode mixer types, and R-4C

b34 ....Collins 51 J
b35 ....Collins 51 S mods
b36 ....Heath-Kit mods
b51 ....Yaesu FT-101B, FT-225
b52.....Sommerkamp FT-250, Tempo One, Yaesu FT-200
b71. ...Lorenz 6P203 Communication receiver
b72 ....Siemens Rainbow receiver
b88 ....Atlas 210X problems and cures
b89 ....Datong and Timewave equipment
b90 ....Salora 2m VHF transceiver mods
b91 ....SRA 400 and 500 VHF series rig mods, and 10m FM conversion
b92 ....Storno CQM/CQP612 mods and practice
b95 ....PYE mods
b96 ....NMT900 Base stations
b97 ....Shinwa 70cm rig mods
b99 ....AP 70cm (Norwegian text article, figures missed)
bjoern "Bjørnen" båtmotor (og vinsj)

c. Amateur radio technical experiments

c11 Reflecties door LA8AK I

2-circuit 80m pre-selector (LA7MI)
Audio oscillator using 88 or 77mH toroid coil
Bias regulator using µA723 or MC1723CP
Connections for the most common small-signal transistors
Digital 90° phase shifter using D-type flip-flops
Drake R4245 multimode detector using MC1496L
High level pin diode attenuator (Roland J. Turner)
IF output from BC RX
Improved circuit for MAR4 application
info for winding coils: http://www.qsl.net/k5bcq/COIL/COIL.html
LM3909 LED Flasher.
Lownoise XO for 12MHz, based on an article by DJ2LR Ulrich Rohde
MC1351P as AM detector
PA Grid Bias protection.
Power supply protection against intermittent potmeter.
Rig selector
Siemens TBA120 = TI SN76660N circuit diagram
Simple Cohn filter for preselector covers 1.75-7.2kHz (LA7MI)
TBA120 as AM demodulator
TBA120 as low frequency mixer

c12 Reflecties door LA8AK II

Bias regulator for Motorola 70cm 250W power amplifier
Control circuit for Jotron 2m 250W VHF power fet amplifier
Dual bias regulator for Magnetic TU8131 2m 150W PEP linear amplifier
G3SEK's RF Power Amplifier Optimization Boards
improved termination of the 455kHz mechanical filter
Improving SL6440 application
Logarithmic amplifier used as a part of LA4MH's VSWR/powermeter.
Planned AF staircasemodulatorproject

c13 Reflecties door LA8AK III

10MHz BAND-LIMIT Lowpassfilter
90° RF hybrid [LA7MI].
Add-on productdetector
CW paddle has also a PTT-switch
Homemade "RS232C" connector for Garmin etrex GPS
Mechanical dimensions for HC49 (HC18/U) type xtal
Morse paddle with PTT facility for simpler transmitter operation
Original vibroplex keyer
Passive 72/144MHz frequency doubler with extra amplifier.
S042E/S042P circuit diagram
S042E/S042P test circuit.
Transition from BNC to conhex and vice-versa (75W)
Vibro-keyer paddle.
White Noise generator I
White noise generator II
White Noise generator with MSA0304 booster amplifier

c14 Reflecties door LA8AK IV

Alternative high-input impedance amplifier
Amplifier for VLF signal generator
Calculating coil, capacitors, inductance
high input impedance amplifier using valves
info for winding coils

c19 LA7MI 10.7MHz 50W IF termination with ZB-amplifier

c21 Reflecties door LA8AK - QRP tech notes

14/144MHz bi-directional mixer
Bilateral mixers
Ceramic resonator type VFO covers 3.500-3640kHz
Cohn type bandpass filter for 80m (LA7MI)
Connections for the most common small-signal transistors
info for winding coils
LA7MI 2-circuit 80m pre-selector
LM3909 LED Flasher.
RA3AAE low-cost bilateral mixer for 40/30/20m direct-conversion receiver.
Seiler type VFO constructed for the receiver
Simple broad band amplifier using BFR96
Simple broad-band amplifier using 2N3866 or 2N4427
Simple xtal tester which works with a frequency counter.
Ultra Low-cost 14/144MHz RA3AAE-type bilateral mixer.

c42 technical note

LA7MI 4MHz variable bandwidth xtal filter based on negative impedance-amplifier.

c51 BCI/TVI filters

2m notch filters
Modification of Drake TV3300-LP
TVI filters

c61 shack problem
Storing components in the shack

c81 Hvordan frese ut printkort og montere SMD-komponenter

c96 Tekniske publikasjoner innholdsfortegnelse (index)

c97 technical note

Experimental saturable-core inductor using a ferrite bead and two electromagnetic relays
G3JIR used an electromagnetic relay to vary the permeability of an FT50-10 toroid for MF and HF
Low-frequency tuned circuits....
Radcom TT (G3VA) nr 12/2003 pp71-72
turns-cancelation tuning method described in ART6 (G3VA), pg 148-149.
Variable capacitor using 2x APT10059 high voltage mosfets

c98 Diverse komponenter til amatørradioformål.

c99 about coax connectors

Better to make yourself the transition you really need
BNC to Phono, LME M4 to BNC (homebrew).
commonly found coax connectors
Connectors for balanced audio cable are easy to convert to BNC type
HF-antenna selector panel using Fernsehen connectors
Homemade transistion from N to UHF
Homemade transition from BNC to 13mm HF Büschelstecker
Large Spinner to N-type.
N male to SMA female (homebrew), N female to SMA male, BNC male to SMC female (homebrew),
N to SMC (homebrew), BNC to Belling-Lee type (homebrew), PCA phono to BNC (homebrew),
notes about coax transitions
Probe for R&S NAD RF wattmeter (1000W 470-280MHz) uses large type dezifix connectors
Some German coax connectors from the 50...60's.
The most common Dezifix bisex connector (found on receivers, measuring equipment)
Transition to RCA phono
Transitions from BNC to conhex and vice-versa (75ohm)

d VHF/UHF/SHF Technik
d1 N/U
d2 (was d1) 2m ssb/cw techniques

28MHz transverter remote control boxes used for 6m, 70cm, 23cm operation.
2m pre-amplifier wiring
2nd harmonic filter for 2m transmitter
A low-noise pre-amplifier (BFT66) for 144MHz. Developped by DJ7VY
A suggested circuit diagram using relays instead of switching diodes
Complete 2m pre-amplifier with BFT66
Diode switch alternative for 144MHz
FT-221 modifications
Heliax LDF5-50 7/8" coax cable
MD951 relay with max 200W
Mechanical construction of the 2m preamplifier
Old pre-amp control board
Pre-amplifier control-box for 2m and 70cm.
Pre-amplifier control-box.
Remote controlled SHF Unit 23cm transverter
Rig selector and transverter selector unit
Simplified version transverter 28MHz remote control box
Some commonly found coax connectors.

VHF SSB/CW transverter with pre-amp and power amplifier

d6 (was d2) 6m techniques
6m PA using 2N6083 or 2N6084
6m transverter based on the PW Meon transverter with 2N6082 20W 19dB gain linear amplifier
Attenuator to use between transverter and PA to stabilize impedance and avoid instabilities
Bias regulator for 6m PA, R2 is current limiter for the base current.
My first 6m transverter, based on DJ6ZZ 2m TX-converter board (UKW-Berichte)

d7 70cm and up
Microwave modules MMT432/28 component location
MMT432/28 external connections
d8 N/U

d11 10W 6cm GaAs-FET forsterkere, Sca VHF meeting juni 2003
d12 LA6LCA 144MHz high performance remote controlled transceiver
d13 ZB forsterker - utgått
d14 Discussion about VHF receiver construction
d18 Converting 6GHz TWTA to 10GHz (RW89 and RW90)
d19 Microwave surplus parts
d21 Magnetic forsterkere for 100-150W PEP på 144 og 432MHz

d23 FuBA 2m valve Power amplifier 200W
Valves for shunt- and paralell type voltage regulators
Valves for screen voltage regulators

d24. 2m personsøkersendere (NEC)
d25. 2m personsøkersendere (Magnetic)
d26. Ericsson Compact 9000 utstyr og varianter
d31. Constructing VHF/UHF/SHF beacons
d41 Feedhorns for 6 and 3cm bands
d91. Scandinavian VHF meeting 2003
d92. LA1T DXpedition to DR08a/JO37SX Skjernöy (Mandal)
d93. Local VHF/UHF/SHF-activities
d94. RL-trace Vealös-Teleskolen (LJ2I)
>d96 Using RX boards from NOKIA NMT900 Base stations for VHF/UHF receiver applications
d904 GaAs-fet forsterker info
DL0RT - Amateur radio experiments at "Astropeiler Stockert"

e German WW2 equipment - general information (under reconstruction)

ea N/A
eb N/A
ec n/a
ed n/a
ee Not/Available
el Luftwaffe radio equipment
em Kriegsmarine radio equipment
ew Wehrmacht radio equipment
e11 (16j) Receiver Intermediate Frequency List
e12 (17a) German WWII RX data information
e13 (16j) RX IF list part 2, based on info from G3VA and other sources
e43 (43a) detectors in German receivers

e67 (17c) Minensuchgeräte und Wettersonde

MSGer Ff 42 - Minensuchgerät Frankfurt 42 [D587/2 1.4.43]
MSGer Tlhf 41 - Minensuchgerät Tempelhof 41 [D587/1 1.4.43]
SCR-625A Minensuchgeräte, -B, -C, -D, -E - [tnx DL1OY]
Wetter-Sonde PI-1139 (9,8MHz)

e71 (16a). Available books, info from US Army, info from DL6VW Werner Gierlach
e72 ......... Content of Trenkle books
e73 (16h) Further info from English language books (Secret War, Lt. Henning: The High-Frequency War, Directory of G. Radar)
e74 (11c), 20c) Signal Bulletins
e76 (16f) Surplus equipment described in Electron, Radcom, Practical Wireless and some other publications
e77 (16b) Funkmeßgeräte-Entwicklung bei der C. Lorenz AG 1935-1945
e78 (16e) Index for Scandinavian articles about surplus equipment

e81 Wehrmachtröhren
RL2P3 (Telefunken), RL2T2 (Telefunken), LS50, GU50, GI7B
Reference data books.
Pictures of the following valves:
AF3, AF100, B442, D1F, E424N, LD5, LG1, LG3, LV1, GU50, LS50, RL4,8P15, RL12P35, RL12P50,
RV2,4P700, RV12P2000

e811 Voltage regulators and barretters

e86 (17b) Some info and data for German valves and later reinventions in MOCKBA, CCCP
e87 (17e) Dumpbuizen voor VHF en UHF (not ready)
e95 - now g22

e96 Nettdrift kraftforsyninger til tyske mottakere (mains psu's for German receivers)

Brumfri likereretter for surplusmottakerene Kw.E.a og Lw.E.a
Kraftforsyning NA6a (og NTG2) for KwEa og LwEa.
Kw.E.a. Kraftforsyning
NTG2 til KwEa, Avkopling av spenning fra stabrør
Rør for serie- og shunt-type spenningsregulatorer
Torn.E.b. kraftforsyning

e97 Power supplies for German WW2 receivers

LA6NCA 12V DC-DC mobile power supply unit
My version of the inverter mounted in a box with some extra noise filters
Regulated mains power supply for Luftwaffe receivers (EZ6, E10L, E10K)
Suggested mains power supply for Kw.E.a, Lw.E.a, Fu.H.E.c, Torn.E.b etc.

e98 WW2 types vs post-war radars

Tactical radar systems (Gordon L Adams G3LEQ)
radar frequencies.
US FREEDOM OF INFORMATION ACT
'Cobra Mist' radar type ANIFPS-95
RUSSIAN 'CLUTTER'?
Russian 'Woodpecker'
Over-the-horizon type radar
Electronic Countermeasures
Frequency Modulated Continuous Wave (FM-CW) radar
'Pulse Repetition Frequency' (PRF)
very effective 'Moving Target Indication' (MTI)
Pulse Doppler radar is a development of the Basic Pulse radar
Ultra Wide Band (UWB) technology
Relocatable Over-the-Horizon Radar (ROHTR) surface-to-surface HF system (ANITPS-71)
British radio station 'Sharq al-Adna'type S-300PMU-l TMD strategic air defence system

email "email info"
f Boatanchors for amateur radio (general information)
f11 (17d) B.A. Receiver data

f12 (17r) SSB conversion (RX) part I

AM/CW/SSB detector in Kw.E.a is the Audion-type
BFO circuit in Kw.E.a.
Lorenz 6P203 receiver on ssb
W5UOZ's product detector for HQ-129X (Hammarlund).(See CQ April 63)
Another well-proven product detector is found in Drake 2-B receivers
Hallicrafters S-40A's BFO drifts a lot, but may be easily cured
For his HRO, G3RZP fitted a simple product detector/BFO. He used a 6SJ7...
Plug-in Product detector for AR-88 (RCA) and similar receivers
Siemens 745 E310 receiver has 12AT7/ECC81 as detector/BFO
Eddystone EC10A Receiver: IF-output, detectors and 1st audio stage.
Product detector for Eddystone EC10A solidstate receiver using 40673

f13 (17s) SSB conversion (RX) partI II

Telefunken Spez 801 receiver has ACH1 as CW/AM detector and BFO
Telefunken Spez801 has an extra IF amplifier to feed the AGC-detector

f14 TX accessories, side tone oscillator/frequency control unit
f15 TX accesories (CW keying stage
f16 RX accessories (loadspeaker connection for German receivers)
f80 Innholdsfortegnelse for Hallo-Hallo (NRHF), NRHF-index
f90. Annonser og lignende (Advertisments, collected from old magazines)
f96 control-/suppressor-grid modulation (Modulator for AM-sender (norsk artikkel))
f97 Controlled Carrier Modulator (AB7YD)
[hp = antenna - N/U]
g21 (20e) components and hardware, pupin coils (77 and 88mH)
g22 (e95) undrer om mand nogen gang faar brug for dette
g23 LA7MI signal generator w/piston attenuator
g91 Sandviksheia - cold war museum, Møvik, Vågsbygd
h-4 Tandberg Huldra 4

k coast fortresses
k1 Tyske kystfort (generellt)
k11 Tyske kystfort på Sørlandet
k31 Vest-Agder, oversiktsside for tyske kystfort
k32 Lista, forskjellige kystfort
k33 Krsand havn, kanonstillinger
k34 Batteri Vara, Møvik (Vågsbygd), Kristiansand
k36 Tjörveneset
k38 Knaben, MG-stillinger
(k39 diverse bilder under redigering)
k42 Min fars bilder fra Mandal 1940-46
k43 Engelsk raid på Ryvingen
(k48 N/U)
k49 Ryvingen og Norges sydligste punkt, Norway's southernmost point
k51 Tysk radar på Sørlandet
k52 tysk radar på Flekkerøy og radarteknikk, ref side 29a
k53 tyske radarer i Aust-Agder
k56 radar og navigasjonsutstyr i Rogaland
k57 radar i Königkerze
k58 FluWa, Flugmeldedienst in Süd-Norwegen im Mai 1945, place name abbreviations, German radar positions
k61 German radiolink stations in Norway, reference page 33a
k89 kystvakthytter/Coast Guard cottages
k91 Funkverbindung zwischen den Peilstellen der Batterien "Hastholm II" und "Vara"

L VLF, MF and 136kHz equipment ideas

L1. VLF (136kHz) amateur-radio constructions

136kHz converter uses 40673 mixer, Clapp osc 195-199kHz.
136kHz converter with 74HC4066 mixer
mixer uses NE602, NE612, SA602 or SA612.
mixer uses S042P, carrier balance
Old level meters
Selektiver Pegelmesser/Selective voltmeter as VLF-RX (D2006)
SIGVIEW.exe

L2. Antennas for VLF and 136kHz reception

136kHz test-antenna to check resonnance of a frame antenna
2nd type frame antenna for 136kHz
80m (160m) frame aerial, shown as a reference.
Accessories in the shack to operate the remote units
active aerial (LA7MI)
Active aerial amplifier with J310 (1) mounted in a Hensel D9025 plastic box
Active antenna using E280F
Amplifier for VLF signal generator
Antenna tuning meter for 136kHz (M0BMU)
Broadband antenna suggested for LF/MF-reception (PE1ABR)
Broadband distribution amplifier (30dB gain) with BFR96 and 2N3866
Calculating coil, capacitors, inductance:
Field strength measurements on LF (PAoSE)
high-input impedance amplifier
LF frame antennas (Aerials)
Magnetic antennas for reception on 136kHz, MF and HF
Noise generator for LF (page c13)
Recommended FRAME-ANT for 136kHz
Remote feed unit for active antenna: How the components are pushed into the boxactive antenna installation

m1 LC- and Q-meters

Boonton 260A Q-meter
build your own Q-meter
Build your own Q-meter calibration coils
Constructing RF transformer for a Q-meter
DC output voltage from germanium diode RF detectors
Edge-mounted p.c.b. tool
German LF/HF-coax connectors from the 50...60's.
Grid detector using 6AU6 used with Heath QM-1.
Heathkit QM-1. (140kHz-18MHz in 4 ranges)
Measuring small coil values
Notes for building your own Q-meter.
Poor man's Q-meter
Q-meter
Q-meter construction
Radiometer MM1f RF multimeter.
RCL-measuring instruments
The poor man's Q-meter

m2 RF termination, attenuators, dividers, RF-meters

2-way RF divider using transformer (LA7MI)
4-way RF divider
6-way RF divider, and n-way divider (LA7MI)
Building termination with standard components
Danbridge Decade Attenuator type DA3HS/D
Defective MI SHF power meter heads
General purpose high input impedance amplifier
Hi-Z RF amplifier
HP651B circuit
IR diode test receiver
LA7MI linear scale RF-mV meter for 0.01-1500MHz.
Linear RF detector
more power attenuators
Portable selective voltmeter
Power attenuators used for experiments on HF
Power Attenuator (25W 30dB)
Practical dummy-loads mounted on N-connectors.
Practical VHF/UHF Dummyload to build
[RF detector using germanium diodes (see page-m1)]
RF detectors using silicon diodes.
RF Level meter using Philips TDA1576
RF probe for RF mV-meter.
Rohde&Schwarts RBD 600MHz 30dB attenuator
Selective RF level meter
Selective" RF voltmeter for HF (two ranges) built in 1982
Sensitive RF detector in conventional design
Siemens D2006 Selective level meter (Selektiver Pegelmesser)
Siemens D2006 Sidetone modification.
SPM-3 (Wandel&Goltermann)
Surplus attenuators
TDA1576 (Philips) as level meter, has 70dB range.
TEKADE Träger-Frequenz Meßkoffer 5-155kHz
Very old LF selective level meter
VHF mixer for RF generator

m3 RF signal- and power generators

144MHz Power signal generator with variable output
144MHz signal booster for test purposes
80m Power generator using 6BQ5/EL84
R&S SMLM VHF power signal generator
SHF klystron type generator
Sweep generator
VHF signal generator for CW/SSB tests

m11 Grid dip meters

Dipmeter with single capacitor and coil without tapping (LA7MI)
Grid-Dip-Meter, Alternative modern version to the ...
Philips GM3121 Grid Dip Meter.
Superregenerative UHF-Dip-meter (DL7HG)
Tech TE15 transistor-dip-meter.
UHF Dipmeter (DL7QY)

m12 power- and VSWR-meters

Another 2m power meter
CB-type SWR-meter rebuilt for VHF/UHF
German coax connectors from the 50...60's.
More power ranges with Bird Model 43.
RF power/VSWR-meter (Rohde&Schwartz)
Rohde&Schwartz instrument of the higher price class, but unknown model. It has been used
Some cheaper "SWR" meters.
VHF power meter
VSWR bridge
VSWR coupler from discarded NMT900 BS

m21 Norwegian measuring instruments etc

Impedance Meter 252 (Amerikansk) - no data available(?)
Transitions from BNC to conhex and vice-versa (75ohm)
Tritron Frekvensteller TS - 1003 Mk2 (600MHz), TS-1004 (1000MHz) o.l.

m22 Old measuring instruments

Audio frequency spectrum analyzer anno 1939.
Information about valve testers
Philips GM7633 Cartomatic III
Radiometer Multimeter MM1f modification for better reading for 0.05-1µH inductance
TEKADE Träger-Frequenz Meßkoffer 5-155kHz

m23 noise generator and signal-to-noise metering

Higher level noise generator
Noise Figure calculation
Signal-to-noise ratio meter
White noise source for measurements

m31 LF measuring techniques

Audio bridge construction
Audio/LF impedance measuring instrument
Balance-tester
Build your own LF/Audio instruments
LF/MF impedance measuring bridge
Test set-up to measure an audio transformer's impedance

Files moved to www.noding.com:

fhf Forsvarshistorisk forening Kristiansand
div-1. Montasje av ADSL utstyr
n11 curing emc on telephone lines
n12 ferrite transformers and linear amplifiers, measure DC saturation current of ferrite cores
n13 Remote controlled antenna switch
n14 Selecting transistors for bias regulator construction
n15 40W 80m PA-trinn med FETs
n16 SRA-1H mixer experiments, High level IF buffer amplifier
n21 PC-controlled Wavetek Model 3001 as sweep signal generator

p power supplies
p1. Power supplies

12.6V 4A power supply
14V 45A kraftforsyning
Constructional principles for power supplies
LM3909 LED Flasher.
Negative bias supply using NE556
Reusing PYE Cambridge power supply for some other surplus equipment

p11. Surplus Power Supply Notes (PSU)

LME BMN903231/2 -28V 50W regulator using swinging choke regulator
LME BMN903231/2 component locations
LME (EB) BMN903231/2 (unmodified)
LME BMN903331/2, -24V 130W supply

p31 Mains adapters / Batterieleminatorer

q1 various notes
q11 Selcall decodere, Anropstone-oscillatorer
q97 ISDN (Innovation Subscribers Don't Need)

q2 (6) BC receivers techniques and audio.

Application of EF39/6K7 and RV12P2000 on +12 and 24V anode supply voltage.
Crystal set
Q multiplier shown in ARRL handbook 1939
Q-multiplier using 12AT7/ECC81
Q-multiplier using BF245
RIAA amplifier (Huldra 9) for record player
The hidden Q-multiplier in Radionette 'Kurér'.
Zwischenbasis-type-VHF-amplifier
q11 Selcall- og tonedekodere

q21.
Berechnungsbeispiel des Volksempfängers (Germans listen to the furious)
Die-cast boxes in German consumer applications around 1950
Schaltung eines Zweiröhren-Batteriempfängers mit DAH50
UKW1c Vorsatzgerät zum Einbau in Geräte ohne UKW (anno 1949)
Zeichnerisches Beispiel des Empfängers mit zwei Röhren DAH50

q22 AM quasi synchronous detectors

r radio related topics
r11. Radio stations. (Rogaland radio LGB/LGQ)
r12. Over horizon troposcatter radiolink stations

r21 (was 2d) Valve technik / Rørteknikk

14 og 28MHz testforsterker med EF39 eller 6K7.
Cascodeforsterkeren.
DL3WP Wallman Converter for 2m. DARC-CQ/QRV (nr 8/1950)
Dårlige HF rør? - Var førkrigs rør så dårlige?
Radionette Kurer (fra rundt 1953)
Rørtype Raeq anodeimpedans(forsterkning)
Tandberg Huldra 4 - demanded shortwave BC receiver
teknikk med Radiorør
VHF cascodeforsterker med ECC85, separat spenning på hver rørhalvdel.
Zwischenbasisforsterker (enkel triode).

r22 (was 2c) Rediscovered valve technique

Basic figures for valve type IF-amplifiers
German Zwischenbasis-type-VHF-amplifier
Influence from detuning in grid circuit of an IF pentode EF89/6DA6
Twin-triode ECC84/6CW7 the most interesting cascode amplifier valve for +100V supply.

r31 (2t) Telegraph equipment


Telegraph receiver, DNRT model 1884
WT40
WT400 (Siemens)
David Andersen Relay tester
Technical Material Corporation Frequency shift converter type CFA (RTTY Terminal unit) anno 1950
German telegraph relays. (Trls43a )
XY-scope using Philips DH3-91
Det internasjonale fjernskriveralfabet nr 2
Siemens Impulsschreiber Fg.reg.2e (E&M-signal distortion instrument)

r32 (2r) telephones and accessories

r33 (2b) Communication receivers and DF equipment
Skanti R421 30ch.(78 xtal pos) xtal controlled receiver
Standard Telefon & Kabelfabrik PE-107-2 DF Receiver (250-550kHz, 1550-3850kHz)
ADF TD-A131 (TAIYO MUSEN CO., LTD)
MF peiler på LGZ (Østre Hauge)

r41 RTTY- and CW-demodulation techniques

Slideback detector for better RTTY and CW detection
ATC for better RTTY and CW detection (Automatic threshold control), refr. ATC/DTC (Mainline TT/L RTTY terminal unit)
CW demodulator with S042P
CW demodulator with MC1496P

r34 (16k) IF standards
r41 CW/Hell/RTTY teknikk
r47 Antikknettet (Norsk Radiohistorisk forening)
r61 clandestine equipment (Olga)
s19 hjemmesidestatistikk, home page statistics
t1- Miscellaneous pages index
t11 Strangelous mountains
tom Det er mange alternativer om det føles belastende med navnet "Tom".

v1 Valve data
(v88 stf)
v91. General information, om norske og engelske rundkjøringer
v92 Santa
z86 diverse notiser

X information from other sites
-(x11) German radio operation in Finnmark (LA6NCA)
-(x12) German radio operation at Odderöy, Kristiansand (LA6NCA)

List of discontinued (undeleted) pages .

1, 2a, 2c, 2d, 2e, 2r, 3a, 3c, 3g, 5, 5a, 5b, 5c, 5d, 6, 7m, 8, 16a, 16b, 16e, 16f, 16h, 16j, 16k
17a, 17b, 17c, 17e, 17r, 17s, 20a, 20c, 20d, 20e, 20f, 21a, 26a, 26h, 26r, 28c, 43a, 897, 899, 92, 98
b98, d22, hp, s, tjorve, z1

page cross-index:

1 = e (11a)
2b = r33
2r = r32
2t = r31
5a = m1
5b = m22
5c = m3
5d = m2
8 = L
11-19 German radio equipment
16a = e71
16f = e76
16h = e73
16j = e11 + e13
16k = r34
17a = e12
17b = e86
17c = e67, see 20f
17d = f11
17r = f12
17s = f13
21a = 11a (=20a),
897 = 900
998 = email
999 = tom

Images:
15WSEa RX mixer: Mix_15WSEa.gif is deleted, see 9v.gif which is the same figure (2004.03.17) corr. pg 31a

I enjoy collecting these items and I will show them on my website for others to
enjoy. I am not interested in selling them, however - please do not ask.
Instead, I hope to help others who collect this type of gear and would like to
hear from them.

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Last update: 2004.06.15