Klooster exhibition (new)
in progress
State of affairs: 29 August 2010
Shown is a part of our new exhibition venue
For detailed subject photographs please double click on this link (in progress)!! (Please notice the recently added information on Berlin-A type radar FuG224 = FuMO81)
Please notice the (new) progress of our attempts: Bringing our Würzburg FuSE62D apparatus in working order again. Its antenna output is, of course, not radiated but being absorbed fully in a dummy-load. Until recently this is done by means of a Heathkit dummy-load, though, it is now commenced by the original power meter type: Ln20978. A major consideration is: that when we would encounter essential problems, which would have forced us to change components we would certainly have postponed this intriguing project! (in progress)
The entrance hall of our new Exhibition place
The set displayed on the left is Lo70KL40, a very nice long- and shortwave transceiver, with 70 watts antenna power. The parts stored beneath it, are spare parts belonging to the transmitter type G1,2K (KWSb 1,5), standing just opposite
Lo70KL40 (also known as Marine Heinrich) seen now from the opposite side. The blue/grey unit on the right is the power supply. In the centre is the antenna tuner, which is internally being interconnected onto the receiver and transmitter
This panel shows, from top to the bottom, FuG25a (Erstling) IFF transponder designed and made by Gema, with control box and automatic fuse/switch (Selbstschalter), the module (in broad face) is the shore based receiver Gemse. Its video-output is connected (correlated) onto the range presentation CRT of Freya- or, in some cases, also to Würzburg radar. On top of it stands the aerial (rod)with attached antenna-matching-box. The unit below concerns a, what the Dutch call, "Mariphone", a VHF naval radio/telephone type Lo10UK39 (also known as Marine Fritz). It is based on a Lorenz aircraft radio/transmitter design, type FuG16/17. For naval deployment, it was redesigned and, for instance, the valve filament voltage was changed from 24 to 12 volt operation
Left of the display above, we encounter next:
PT10 (Prüftafel 10), right of it PeilG6, together it represents FuG10P
Click for the manual of PeilG6 on: APZ6
In the front is shown the "Funkertisch" of the aeroplane type "Bücker Kurier" (I was told recently, that it concerned a: Siebel Si 204). The main instrument is called "Funkpeiltochter". Which has a double function; the centre instrument is a slave compass (Tochterkompass). The outer ring is synchronized electrically with the DF loop, via the compensating Funkbeschicker type FB11 (open on the right). On the left hand side is shown PT10 (Prüftafel), which represents (is equal to) the FuG10 aircraft systems. The opened instrument on the far right is the Funkbeschicker (mechanically linked) to the rotating DF loop of EZ6 (PeilG6). Its main function is, to compensate the distortion caused by the shape of aircraft owing to the asymmetry between wings and fuselage. For this occasion the table has been pulled-out towards us.
PeilG6 (PeilG VI) with receiver EZ6 - V6 - RSS6 - EPR6 and perspex (plexiglas) sense-antenna disk
The open FB11 (Patin) shows on its outer circle the trough bearing of the iron powder DF loop. The Al. curved disk is to compensate the specific distortion caused by the asymmetry between wings and fuselage of an aircraft. For this occasion the covering dome is removed and is visible right of the frame. Click for the electrical circuitry of the Patin FB11 link (the drawing quality is quite meagre but it is the best we have) This schematic belonged originally to the Patin system V25 but was rarely being used. Most systems were EZ6 + V6
PT10 and PeilG6. The "Funkertisch" is now pushed back in its regular display position
FuBL I (Funkblindeanlage I)
This transport case contains an EBL1 and EBL2 (blind landing system), interesting is, that it has a repair label indicating that it was sent for repair from Riga to the GAF repair-service in Berlin-Teltow, in 1942. This case later turned-up in post-war Spain. Left to it a "Libellenoktant" employed for night navigation in aircraft. The two yellow devices are both so-called Notsender 2 and 4 (emergency transmitters)
Shown is our Army section (Heeres equipment)
On the upper shelf we see Torn. Fu. d2 - Torn. Fu. b1 - 15 WSEb
Down of it, similar sets, but now opened and viewed from the rear, so that one can look what is inside. On this shelf on the far left, we see Mienensuchgerät Wien 41 (Mine detector type Wien 41). On the right, we see: UKWE e - 10WS h - Funksprech f with its loudspeaker. On top of UKWE e is MWEc
Torn Fu and Feld Fu corner. On top left, the tall set is Ton Fu.g On the right hand is shown our "Rariteitencabinet" this Dutch word may be translated in "curiosity display". All sorts of curious bits and devices
The upper shelf displays Torn Fu x and Feldfunk x sets (kind of Walky-Talkies)(Feldfunkgerät type b - c - f) ,. The second shelf from left to right: AE1020 which equals to some extent Torn.E.b and right in the middle section mine detector type Wien41 (Mienensuchgerät Wien 41). having, however, 2.4 volt valves type RV2.4P700 instead of RV2P800s, and its frequency range is extended to about 15 MHz instead of 7050 kHz. TornE b; Feldfernschreiber. The motor-generator GG400 (sand like colour) is to charge 12 volt batteries
Navy corner
Most devices are related to Navy Communications. On the right we see Lo6L36 and Lo6K39, - EO509 - Ulm E53b - Köln E52a1 - transmitter AS59 - T9K39 Main receiver - transmitter S406/S 36 - Ha5K39b - Lo1UK35 - Ha15K42 and on the far left a Feldfernschreiber
From left to right: Funkhorch (FuHE. ...) type: b - c - d - e - f and u. On the far left, on top of the mast, is mounted the broad-band-antenna to FuHE f (version of 1944, as previous systems used motor-controlled "Reusen-Antennen")
In the background we see our Würzburg installation (FuSE62D - FuG 62D). From right to left: Rehbock FuZG64 - puls modulator IG62a (Igel) - IF module ZFV62 (Zobel) - on top of both SÜ62d Urechse - EAG 62 (Emil), fine range measuring display - ANG62 (Orion) overall range and beam observation displays - Power meter to FuG62 and type 65 (Giant = Riese) as well as Mainz FuSE63 and FuSE64 - valve tester to Würzburg and Mannheim apparatus Ln20978. On the far left is displayed SG224 also known as PPI to the Berlin radar (FuG224). Which is a German design based on H2S. On the foreground we see an exposed inside view of the Köln E52 receiver
Würzburg (Wurzburg) FuSE62D taken from a different angle. On the far left, the PPI of the Berlin radar set. Please consider our recent contribution (25 May 2010) on aspects of this system down the Exibits-details page. The two sets next to it are: the valve tester to Würzburg and Mannheim radar (FuSE64). Power meter to Würzburg FuSE62 and Giant (FuSE65 Riese) and Mainz radar (FuSE63) which latter was the forerunner of Mannheim (FuSE64). Above, hanging on the wall, the antenna on the left is "Breitband type Breitschwanz" (lacking its reflector disk which equals the one on the right) and on the right the regular antenna type DA62. On the far right, hanging on the wall, is NA I and NA II, both the main power supplies of Wuerzburg radar
This photo might be replaced later by more detailed photographs
Rear section of our museum. From left to right: power supplies of Würzburg (FuSE62D); aeroplane altitude meter FuG101a (see Exhibits-details for the newest information); Lichtenstein SN2 (FuG220) with antenna arrangement and right of it; WT40, a multi-channel FSK telex interface
Left to right: both valve (tube) testers RPG1 and RPG2 (consider: exhibits details)
The left one is for German application rather exceptional, as it is being "programmed" by means of coding cards. RPG2 is to test RL12P35 only, be it for insulation between filament and cathode, anode current and dynamic amplification. On the right, at the "curiosity display" is visible EZ6 without case, as to display how compact and neat this kind construction is
Our telephone corner.
Shown are various kinds of military telephones, though, also samples which were directly linked to regular telephone systems. Some could even operate in both systems simultaneously
From left to right: MZG2, programmable Morse generator, employed in beacon-signals; High speed Morseschnellschreiber 5; Telefunken long wave receiver type LWEa - Hüttenpeiler II (HF/DF receiver with attached gonio-meter, receiver is, however, more or less equal to KWEa); Battery charging power supply type NA4d (providing 2 volt, 4.8 volt and 12 volt), on the floor Lo200KL35 and the Telefunken TRF "Brodkiste" receiver type E381S
Same display, but now looking from a different perspective. The brown Bakelite box is a "Morse sounder" which tone is being generated by means of a neon saw-tooth generator, fed directly from the ac mains
Philips corner
On the shelf most apparatus originate from Philips, though, some by Rohde & Schwarz and Telefunken and very down the broad grey box is a Signal generator type S245a, which purpose was to provide rather accurately signal strenghts and frequency-diviation calibrated in percentage (%), hand-made in a Navy Signals establishment; on the foreground left, a Siemens & Halske low frequency spectrum analyser Rel mse 2030 (see Siemens 1940 catalogue) At the top shelf from right to left: DR78 portable transceiver - down the belonging frame carrying a NC-battery and spare part box; Next to it a DR42 VHF transceiver; Next to it FR38 (equal to DR38); VHF radio-telephone (sold to Finland during their defence against Russia in 1939/40, however, also used in Britain, this device was made for the Germans); Next to it DR25b (= Ph1UK41 or Ph1UK43), with its original transport frame; Next to it Philips VO34T (= Vliegtuigontvanger) also sold as HMZL, the difference lays in the filament voltage VO34.. at 24 volt and HMZL running at 12 volt; Next, Rohde & Schwarz FFH field-strength receiver for 20 - 100 MHz
Radione station
From left to right: Radione receiver type R3 - in the middle shown some spare part boxes, the cardboard box was made by Mr. Metzelaar PA 0 MM about 1946. On the right the RS20M transmitter, both sets belong together and all interconnecting cables are stored in both suitcases. This ensemble is rather rare. That the Americans adopted to a great extent "quartz crystals" for their military services might go back to this set. I was told that: around 1939/1940 they could lay their hands on a RS20M and have tested it extensively. They were so impressed by the results, that they decided that quartz crystals is the best solution for stable frequency generation
The ceramic module in the foreground is housing the VFO of the transmitter S406 shown in the background. It is an outstanding sample of stable VFO design. S406S.. was particularly designed for employment in U-boat communications. It should resist high degrees of humidity and shock- and vibration levels. This ceramic module is inside covered with a heavy Cu layer. The ceramic/copper cover-plate is visible right of it
FuMB section (radar search receivers)
FuMB (Funkmeßbeobachtung). On the table from left to right: Korfu E351, equipped with a S-Band module for λ 8 - 12 cm; AEG oscilloscope for monitoring the kind of radar signals; Wave meter (Frequenzmesser) 351 to Korfu* (see archive displays on Korfu); EO381 (Lorenz) with pluggable coils; Naxos FuG350Zc (see for details Naxos) its antenna ZA290M 1/44 is standing on the floor. The contradiction is: that FuG350Zc runs, like most GAF systems on 24 volt dc, whereas the ZA290M 1/44, runs, like most navy equipment, on 220 ac. However, this system is being fed with both appropriate voltages. And is fully operational *Does someone can help us with the interface cable between Korfu and wave-meter 351? Information on it only, is already very helpful
On the left we notice T8PL39 (Martin)
This version is originally converted as to operate up to 2 MHz, likely by Telefunken. Right of it, the SADIR receiver type R87 ES. The two stagged receivers are a Samos and a Fanö, covering 90-470 MHz and 400-812 MHz. Not entirely visible the Korfu receiver
Tonschreiber b (tape recorder type b of 1944)
On the left the box containing spare tapes and spare parts and tools. In front is an exchangeable spare audio-head-assembly (Tonköpfe) for play- and recording and a separate erasing head (see for details: Tonschreiber b)
Rariteitencabinet (Curiosity display)
The main aim of this display is, to show samples of certain techniques. The tall microphone is the Neumann type "Kondensator-Flasche" M1-1a, The marble block right of it is the original "Reisz marble block microphone" of about 1928, which was the one used during "Radio Kootwijk's" early voice (speech) transmissions, between Holland and the Dutch East-Indies (now Indonesia). The black cylinder on the left is a magnetic flux-deviation discriminator, to a naval mine (Seemine)
Enterrance hall
Left 800 watt Ehrenmal transmitter with power supply. Inside the glass cabinet is shown the gyro-platform of a Seehund two men submarine. Which is derived from the Siemens & Halske KZ12. These artefacts originate from a boat (type 127) which was laying next to the "Hoogovens" of IJmuiden, in May 1945 (the gate of Amsterdam to the North-Sea). The big transmitter right of it is type G1,2K more or less equal to 1,5 KWb, far right the power supply. (see also archive displays)
On the left 80 WSa with attached dummy-load and on top the antenna match and a quartz calibrator which was mostly used for calibration of tank receivers (transmitters?). On the right 20 WSc, which carries a label of the British BBC. On top of it the very neat UKWE d1 receiver
Since 30 January 2009, we have re-arranged the table setting in the rear exhibition room
The tables are being re-arranged
Facing towards us is shown the Siemens & Halske low frequency spectrum analyzer type Rel mse 2030. Left of it we view an exposed Köln E52 receiver (Koeln). On the right we find the Radione station consisting of R3 and RS20M.On the far left, we see a part of the Lichtenstein SN2 (FuG220) antenna array
Exposed Köln E52, left the spare part box to E51 - E53 (Leipzig - Köln and Ulm), next the central wiring plate (BUS) with attached IF- and Audio stage module. The main Köln E52 chassis frame and on the right the opened power supply
Looking at the previous table, but now from a different perspective
Portable Radione station. On the left receiver type R3 on the right transmitter RS20M. The extension 'M' might indicate, that it originally was meant for Navy (Kriegsmarine) use. What is speaking for this assumption is, that the connectors are equipped with three pin navy types, which are only employed in Kriegsmarine applications. The advantage is, that the Army and GAF types can both handle these connectors, as their two pin connectors fit to the two out-off three pins. The third pin has to do with screening and grounding (earthing) of, for example, Morse keys. The inter-connecting cables are stored inside both suitcases. In the middle we see various spare part boxes
Viewing the room from the rear wall. The rod on the left, belongs to the Lichtenstein SN2 antenna array
The Siemens G-Schreiber SFM T52d (regard also the internal view of T52d and schematics)(new! its integral manual M.Dv. Nr. 35)(secret telex) displayed in the centre. The small box right of it is the punch-tape "sender". The exchange unit on the far right on the floor is to select manually (telex = Fernschreib) interconnections. It has a build-in power supply for single current Lorenz type telex systems. On the table far right of the T52d is shown the original "Springschreibanschlussgerät" line-interface to Siemens Geheimschreiber systems (G-Schreibanschlussgerät). It allows: single current in and out, or, single or double current in and out. All situations can be dealt with
When we turn around 180 degrees, we face this display. From left to right: Enigma-Uhr with, left for this occasion, out-board stecker (cables). Then the Hagelin M-209 - Swiss Nema machine, which saw service around 1947. The module on the right is shown in detail at the next photo
This coding wheel section of Siemens SFM T52c (or T52ca), was recovered in the mid 1980s from the bottom of a Bavarian lake, by amateur divers. It was dropped into it about the days of Germany's unconditional surrender in May 1945. The lake bottom is covered with a thick mud layer that acts as preservation. The main chassis of T52s is made of a kind of Al alloy, which left after forty years only a grey substance behind, the wires were hanging freely around, however, still connected onto all it originally was supposed to do
Decimetre telephone link on 475-525 MHz. Could also convey telex signals. Situated next to the entrance. (Photo taken by Gerard Vos on 21 March 2009)
Next to it
LiSpr 80 (Lichtsprechgerät 80 mm)
Since 18 June 2009 we have added a fourth display table in the rear exhibition room
The small Siemens & Halske corner
On the left hand-side we see the Siemens noise and interference search and measuring receiver type StmG 1867 and attached Su.G. 1868 (Störsuchmessgerät) On the right hand-side the Siemens & Halske LoG1 (Luftfahrt Schleifen-Oszillograph Type 1). The latter is a 4 channel current-loop oscillograph. It is designed to be deployed in aircraft (24 volt) and it could record simultaneously 4 channels. Current-loop modules are rather sensitive and can record events up to several kHz. The result is stored in a film-cassette. Timing markers are also provided and being 'flashed' at the film strip. We have to think, for example, of - measuring temperature versus pressure, or strain - temperature, in- and outside an aircraft and that like
On the left we see the Siemens & Halske LoG1 now visible from the film-cassette side, next to it the noise and interference test set. The small opened lid gives access to the facility where we can connect an electrical motor, for example a vacuum cleaner. By this means, the attached long and medium wave receiver can measure the interference level spectrum, calibrated in µ- and milli-volts
Display of various instruments
Philips laboratory wave meter of July 1944; R&S wave meters 90-800 MHz; S&H mV LF meter; H&B hot-wire RF antenna current meter; Wespe 2 (transponder), RS 3 and RS 7 balloon sonde; Gossen - H&B - S&H Bakelite meters
My wife made in spring 2010 a panoramic photo assembly as a result of here Photoshop exercises
Shown is our valve exhibition
From an artistic point of view she also modified the previous photo in a kind of negative print
The impression might be given that the artefact is displayed in a glass case
We got in June 2010 very kindly on long-term loan from "Jan Wolthuis of Stadskanaal" the receiver-IF module of the Freya radar. We possessed already the power supply to Freya or Seetakt and have moved it from the MLK display to the Klooster exhibition.
Freya/Seetakt power supply unit, with on top of it the RX/IF module. The blue coloured class window is to filter the ultra violet spectrum of the two mercury rectifiers (please see Exhibits details). The horizontal glass window on top of the power supply unit (Netzgerät) is covering the multi meter voltage and current controlling section. The two selectors just down of it is for regulating the mains and the right one is for adjusting the HT of the transmitter.
On top of the just visible power supply of Freya or Seetakt radar is displayed the Freya receiver with integrated IF module. The power supply is a rather heavy apparatus, of which I guess its weight is more than 150 kg. The glass envelope in the upper section of the RX/IF module is the Stabilovolt type STV280/80 voltage regulator. The upper voltage regulator has a central hole, which allows you to watch its operation (acting as voltage indicator). Please see for apparatus details: Exhibits details
In June 2010 we were also able to obtain an extra KWEa which we have removed from its case, as to show how beautiful Telefunken engineering had been
LWEa / KWEa (on top)
On top of it you see the similar KWEa receiver type, though, now "inside out". I believe that the KWEa (and LWEa) receiver was one of the most elaborated receivers of its kind. Its coils turret is really a master piece of engineering. Interesting is that the black Bakelite rectangular device, a bit down at the far right of the chassis, is the dual quartz crystal; the small box contains two quartz crystals (flex-mode types), one for 250 kHz and the second one for 251.8 KHz (upper and lower sideband). However, by engraving the latter text they have made a mistake - instead of putting 251.8 they engraved 521.8. This was corrected by a second approach. Please notice for receiver details: “The significance of German electronic engineering in the 1930s”
Go back to, or proceed with: Exhibit details
Go back to, or proceed with: G-Schreiber T52d information
Go back to, or proceed with: Exhibits details (in progress)
Go back to, or proceed with: Exhibits museum registration
