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German Funk Horch Empfänger d.

My new  German receiver,

Funk Horch Empfänger d.

In this post my new beautiful German receiver, the Funk Horch Empfänger d.

For a better picture or schematic diagram, just click at the picture. To go back, just click right of the picture or schematic.

At the  time of  world war 2, even before and also today, armies and also of course armies  in world war 2, so the German Wehrmacht, were listening at all frequencies, from long wave, medium wave, short wave till VHF. Not only enemy stations, but also the normal broadcast frequencies. All these to check them for correct transmissions and also to intercept  enemy transmissions for important information etc. Even in Germany, radio amateurs were checked out in the beginning. But very soon, they were forbidden, because they were not important to the government.

These “Funk Horch Empfängers” were very sensitive with a lot of functions to receive even small signals at any mode, like A1, A2 and A3 transmissions.

A various amount of receiver types,  a, b, c, d and f for all different frequency bands, were placed in listening centers. For these listening centers,  called the”Fu 14″, were 10 Torn, E.b’s, 3 large short wave receivers KW-E a, 2 Horch Empfanger Fu.H.E. a/c and lateron also 2 Fu.H.E.d in use.

Also special troops from the Wehrmacht used them in a portable way, the “Funk Horch Truppe”. The name  for troops, who used the type D, the F.H.E. d , was called “Fu.- Horch-Tr. d”. Code name was “Horst- D”.

See also the book of Fritz Trenkle, die deutchen Funkpeil- und Horch -Verfahren bis 1945.

Some documentation:

Note: it concerns only the type d of date  1-10-1942, other types are often different in the schematic and sometimes funtion! Also changements, mods, were made in the various years, concerning the same type! So in practice, get the right manual.

Manufacturer: Telefunken, code name bou. Each manufacturer had its own code, for instance Lorenz was dre.

Type d.

Valves: 12 RV2P800.

Range: four ranges white, red, yellow and blue.

24,8 -31,7 Mhz, 30,45 – 39,30 Mhz, 38,82 – 49,35 Mhz, 47,90 – 51,90 Mhz.

modes: A1, A2 and A3.

headphones: type DFHa 2000 ohm.

The receiver is a super heterodyne type with a continuous variable bandwith by means of a crystal at 3000 Khz.

Also a CW filter is included at 900 Hz, “Tonsieb”.

Containing 2 RF stages, 1 mixer, 3 MF stages, 1 audion stage and 2 LF stages.

Also 1 stage for the CW oscillator, containing 2 crystals. Two frequencies for the oscillator can be chosen, TG 1 and TG2. Just 900 Hz down and 900 Hz above the carrier. When a unwanted signal is just down the carrier, the CW oscillator can be switched just 900 Hz above, so no problem any more to receive the correct signal.

In position TG1, a calibration signal is to be heard at several marker points of the frequency band scales. This after pushing the calibration button on the front of the receiver. The antenna signal is switched off, and the calibration signal is fed to the entrance of the receivers first RF stage. Amazing fact is, that in my receiver, the frequency scales are still calibrated after 70 years! Also the sensitivity is equal over the whole band.

 

The MF stages at 3000 Khz, contains one crystal. With that one the bandwidth is to vary. The calibration of this is also the same as 70 years ago!

Power supply original housed in a separate housing or transport case, “Tornistor”, providing 2 volts of a lead acid battery and a 90 volts static dry battery. It contains one lead acid battery, type 2B38 and 2 static HT anode batteries.

The receiver is complete original, inside and outside, so his case, and has it’s original color.

Front

The front of the receiver. All functions are good to be seen.

IMG_8144

Side view of the receiver.

IMG_8141

Side view. From left to right above: 2 RF stages, nr. 1 and 2, the mixer valve and the balanced  (Gegentakt) receiver oscillator. From left to right below: the 3 MF valves.

IMG_8137

Other side view: above the coil holder of the HF , mixer and oscillator part.  Each wave band has its own combination of 3 blocks. The contact fingers are to be seen just at the above side of the picture.  When changing the waveband with the big knob on the front, first the contact fingers are lifted, then it rotate, and when in position, the fingers are released and make contact with the coils contacts in the holder.  It is a common construction often used in German equipment.

The 3 coil blocks, for each wave band,  in their housing, seen in the mid of the picture, are easy to replace.  Below the power supply entrance and 2 entrances for the headphones of 2000 ohm.

IMG_8142

Back side. here to be seen the Audion-, the audio- pre amplifier- and the audio- final amplifier valve.

IMG_8146

A view of the power supply entrance and the haeadphones. left the LF output transformer, which is a different one, which is replaced because of malfunction by another German one.

IMG_8143

Upperview of the receiver. left the diodes for the AGC, eg “Mit Reglung”. In the mid the contact fingers for coils connections. Also to be seen the variable condenser for tuning the antenna. At the right the switch for measuring the anode currents for all the valves, to check them on the test meter at the left above corner on the front. All indications on the meter into the blue part of the scale. But the AGC ,”Reglung aus”,  switched off, the audio gain on maximun and switch mode,  “Tg1-Tn-Tg2″ at TG 1.

Furtheron, the receiver in in good working order. All his functions are working. The only component I had to exchange was a faulty condenserblock at the right side of the receiver, number 234 in the schematic diagram, which was very leaky. I did restore it, by putting a new one, electrolytic one of 47 uF-500 volts Dc, into the inside. It is like new now. You can’t see it. Also I cleaned all the electric contacts. And lubricated the mechanical aches of switches, scale driving aches etc..

Grund Schaltbild

The principle schematic diagram. Note, that it concerns only the type d. other types, like a, b etc. differ in schematic. All valves are RV2P800.

FUHE d

A close up of the receiver between other German equipment.

af8

Transmitter Navy, LO 40 K 39, from C Lorenz AG Berlin, Tempelhof.

 

This navy transmitter was in use by the former German Kriegsmarine, on board of battle ships. Some times in use as a spare transmitter on board of submarines. Even in use in the dessert sometimes.

af8

A very rare picture of the LO40K39 in use in the dessert. Left the power supply, to the right the transmitter. As a receiver, the Tornistor Empfanger b is used. This more powerful  transmitter was used, because distances became too large for the normal in use transmitters.

It contains three RL12P35 valves. One for the variabel oscillator stage and two in parallel for the power amplifier stage. Mine delivers about 40 watts output power on CW only.

LO 40K 39 front

Above the transmitter and below the power supply of mine.

Picture 004

Above the back view.

The right part is the oscillator stage, the mid unit is the power amplifier and the left unit the aerial matching part.

Picture 005

A clear view from above. Notice, that all tuned  circuits are variometer coils. The coils are fastened on ceramic holder for maximum frequency stability. Also complex circuit of special ceramic condense are included in these circuits. This also, to establish a great frequency stability.

lo40k6

Above the power amplifier valves, type RL12P35.

lo40k7

Above the aerial matching. A switch , with slide contacts on this coil e, seen on the picture, establish a good match on the aerial, a inverted L-aerial.

lo40k8

A good detailed picture of the oscillator stage. Tuning the frequency is done by a variometer circuit on a ceramic coil holder. An amazing design.

Kopie van LO 40 K 39a a

The data sheet of the transmitter. In this case both the transmitter and power supply are housed in the same cabinet. Often are housed in separate housings.

Lo40K39d_cable3

This is the cable between the power supply and the transmitter of mine.

Lo40k39d-1

The schematic diagram of the transmitter, a type d.

Torn. Fu. b1

This is a transmitter receiver which was in action by the troops in the frontline. Or also used in small cars like the “Kubelwagen”.My set is of the year 1936, is fully in working condition on Phone or CW in the 80 meter radioamateur band with only 400mW output at the antenna.

Watch the text “Feind hort mit” on the front. It is a warning for the radio operator that the enemy is listning too. So mind your words.

Torn.Fub1

FD2002a

FD2002b

The first picture  the Torn. Fu b1  near the receiver KWEa . The second and thirth  picture,  the Torn. Fu. b1 in action at the radio fielddays at Kootwijkerbroek in 2002. It is me on the second picture working with it. The antennais a replica toploaded vertical, a copy of the original one. I made at this field day many pleasent qso’s with the mobile station PA0LCD, now PA0AM, Cor, in the neighbourhood of Kootwijkerbroek. The Torn. Fu b1 was doing very well with its 150mW phone modulation. My experience is, working amateur stations at a bigger distance, only CW is suitable, because it’s low power output.

Duits hoekje a

Above the Torn. Fu b1 with the Lorenz LO6K39 receiver as a listning station in my house. Watch the Wehrmacht Uhr above the Lorenz.

tornfu26

Picture above: German Army on his way with the Torn. Fu b1 as a man pack at his back. At the back of the left soldier, the battery case  of the B-1.

Tornistor E b

Torn. E.b

Tornistor Empfanger b (Bertha ).

The receiver is build in 1940 by Telefunken.

This shortwave receiver is a direct conversion, 2 stages HF , 1 “Audion” detector and a LF stage. All tubes are of the type RV2P800. The feedback or reaction gain in the detector stage is tuneble with the little knob below the small scale of it.    This makes the receiver suitable for CW and even SSB and becomes then very sensitive and selectief.

It is a very well working receiver for listning at the amateurbands.

The headphones is the DFha. The elements have an impedance of 2000 ohm.

It is used by the army (Wehrmacht) in the field, it could be carried on transport, at the back of the wireless operator.

It was also used in radio vehicles as a mobil station.

Tornistor E b

Tornistor Empfanger Bertha from 1940.

EWc up

This is the vibrator powersupply, type EWc,  for 12 volt DC. Used in vehicles.

EWc top

View on the upperside of the EWc. Left the vibrator and filement resistor lamp. At the right the spares.

EWb

Here in the mid, the vibrator powersupply, type EWb. In use for the Torn. Eb in portable situaties. The supply is the 2 volt DC from a lead battery. This battery is shown at the left, type 2B38. At the right a copy of the HT static battery for 90 volts DC.

All the 3 item are housed in a special battery case,  mounted just under the receiver.

Radione

Radione equipment.

Although these radio’s are not  in my collection anymore, I decided to keep the whole post in my website. This because a lot of documentation and pictures is in it. Probably people can make their advantage of it.

This equipment was used by the Navy (Kriegs Marine), often on small ships.

This combination was also in use by the German Abwehr.

The receiver type R 3 was used in combination with a small transmitter called RS 20, but also with the transmitter Lo40K39f. Frequency covering for the the R 3 is 2 Mc-25 Mc. The tubes inside the receiver are all different and are also  called: “Stahlhelm Rohre”. It has a build in  power supply for 110 120  or 220 volts and a vibrator supply for low voltages like 12 or 24 volts.

The transmitter RS 20 covers 3.000 Kc – 14.600 KC in 3 bands. It is for AM, CW and MCW. With this combination I made so many excellent qso’s in the 80 meterband, crystal controlled with AM.

Radiones

Left the transmitter RS 20, right the receiver R 3.

RS20

The transmitter RS 20 with connected the headphones, microphone and key .The meter on the front is indicating the earial current to the antenna, by pushing the blue button it indicates the driver power to the power amplifier LS 50 just left in the compartment.

RS20buizencomp

The valve compartment. One LS 50 for the PA, two LV 1 for the xtal oscillator and modulator (G-3 modulation). Right the crystal (not original). In the mid the band switch covering 3.000 Kc – 14600 Kc. Also mid above the frequency scale for the  crystal frequency tuning by the little brown knob.

achterbinnen

The various parts at the rear inside of the transmitter. Note the extra, not being original,condensers at the left bottem to maximise the high tension voltage, but this is then the only none original component. (The big blockcondensor (2 2,5 uF) is not well anymore). Right the power supply section, left the HF section. Note the big coil being the Power amplifier coil.

voeding

Here the vibrator for 24 volts, the EZ12 rectifier, the RD150DA neon stabilisers and the PSU chokes.

voedingtriller

Left the vibrator part and power supply transformer, after removing the front cover.

radione opstelling

Here the complete working Radione station on a frequency of 3705 Kc. Working on AM with 10 watts carrier G3 modulation or on CW with 20 watts carrier. The 3705 Kc frequency is the SRS national Dutch AM frequency in the Netherlands on 80 meter amateurband.

antenne stroom

The antenna current meter, showing the transmitter RS 20 is giving power, about 10 watts.

RadioneR3 aftemschaal

Listening at 3705 khz, the Dutch Surplus Radio Society Radio net in AM, every Sunday morning, starting at 10 o o”clock MET.

Funker

Here an original picture of a wireless operator or “Funker”, working with the RS 20 and R3 in a Bunker. Left a DR 78 transmitter/receiver, made by Philips in WW2.

LO 6 K 39 1

Navy receiver LO 6 K 39, former German Kriegs marine.

Normally it was produced by the German manufacturer C. LORENZ AG, in Berlin Tempelhof, but also by  others, for instance in Austria during the “Anschluss” with Nazi Germany.

It is a amazing design for a TRF receiver.

LO 6 K 39 1

The receiver in the picture above is made by Schrag Ericson in Wien Austria. Typical are the missing name plates on the front, while on types, made by Lorenz, they are there.

It was in use by the German Navy on their war ships like the Schwerer Kreuzer,  Prinz Eugen, for example.

Also used in the desert by the “AFRICA CORPS” of Rommel. This because of it’s frequency covering was better for listning to the enemy transmissions at long distance.

 

2 maal LO 6 K39

On the right another receiver, made by Lorenz. Both well working.

The Lo6K39  a is s a short wave TRF receiver, covering 8 frequency bands from 3000 kc till 25000 kc. There or more versions like the d type, which differ in frequency covering and some hardware.

It has 3 HF stages, for each frequencyband 6 tuning coils, 1 audion stage, 1 LF stage and 1 crystal calibrator stage. All stages contain a RV12P2000 penthode valve.

The receiver has a great selectivity!  Because it has 6 tuned circuits in front of the detector stage. Warning: don’t try realign these circuits, it will end into a failure!

Also a CW  LF filter at 800 Hz is included ( Tonsieb ). This makes this receiver to a excellent choice for detecting CW signals. Just a 8oo Hz tone, no noise etc..

Also the crystal calibrator workes well. It gives 100 Kc signals all over each wave band. However in my receiver, the Austrian one, it has been removed.

Furtheron, the receiver has been excellent screened at all fronts. Because they were very afraid, that the radiation of the detector would come outside the receiver. So would be noticed by the allied listning stations. But because of the 3 HF stages, it was most unlikely.

LO 6 Volume  pitch  tuning knobs

The reaction of the audion stage is variable. The down left knob is a twin one , the centre knob is intended for the gain ( audio ), the outer one is a kind of frequency shift, from the centre of it’s scale you can vary the frequency 3 kc downwards and upwards. This workes very pleasant for receiving CW or SSB signals.

The audio impedance is 4000 ohm. A original headphones, a Dfha, is suitable for this.

The powersupply is inside the receiver cabinet.

The weight of the receiver is 65 kilo’s!

LO6K service meter and switch4

On the above right corner is a little meter , you can measure the HT en LT  of the power supply. This doing by pressing or depressing the one of the 2 little knobs on the meter.  With the switch below, you can measure the kathode current of all the valves.

Just left above there is a black cover, which covers a neon lamp, this neon lamp protects the receiver input from the very high HF voltages from other transmitters on the ship (200 volts pp Voltage max.). The HF voltage part of the electro magnetic field, is very high, because of the short antennas , which establish this HV field especially and the high power output (hundreds of watts) of the transmitters in use.

Waveband drum

Above the view of the drum containing  the tuned circuits  units of each wave band. The coverplate has been removed for showing it.

LORENZ 002

LORENZ 003

A side view of the receiver, in the holes, the valves RV12P2000 are placed  in their sockets.

Waveband revolver fixation 8 steps

LO 6 part of revolver

The fixing plate (revolver system ) to fix the correct stand of the drum, for each wave band. The contacts are making correctly contact with the various stages in the receiver. With the big handle on the front panel, you can change the wave band. This by this revolver system. Very nice in this system is, that just before turning the drum, first the contact arms are lifted up, just after it, the drum is turning!  Then the drum is fixed correctly, just after that the contact arms are going down and make contact wth the contacts on the tuned circuits inside the drum. In this way, keeping the contact in good order! It is a amazing design!

LO6K39 018

Above the view of variable condenser for tuning the receiver. The cover plate has been removed for this purpose.

LO6K39 007

The beautiful tuning scale of the receiver. The receiver receives on wave band no 5, from 5,97 – 9, 00 Kc.

LO 6 K Scale lamp

The 12 volt lamp, for illuminating the frequency scale, just by lifting the cover. Also to see the handle for changing the wave band.

The case of the receiver.

lorfig3

This picture, I don’t know for sure, a Navy department, as a l istning station for the ships or Uboats abroad. Varous receivers to be seen, however no transmitters.

lorfig4

Unknown picture of the LO6K39. Maybe the Labor of the manufacturer, C. Lorenz AG in Berlin Tempelhof? Hope someone can tell me. Pse your re. in  the comment below in this post.

KWEa front 1

KWEa

KWEa Short wave receiver

“Kurzwellen Empfanger a (Anton)”

KweanewJPG

  • This receiver was in use by the “Wehrmacht”, especialy in radio vehicles.
  • This KWEa is an early type of 1941 and in fully working condition.
  • It has 11 tubes of the type RV2P800.
  • Frequency range: 980-1020 Kc in 5 bands.

kwea2

A view inside the receiver. Very well visible are the tubes RV2P800 in there sockets. Right is shown the 2 gasfilled bulbs for protecting the HF-input. Very high voltages due to lightning in heavy thunderstorms are fed back then through them to earth. The various coil sets for the several frequency bands above right are turned around  via a kind of “Maltheser Kreuz” principle. When it begins turning, the contacts are lifted (open contacts), then the coil set turnes to its position, stops turning and after that  the contacts are closing again. In this way the contacts are kept pure and clean.

Below some other pictures of the beautiful receiver from the inside on the testbank.

KWEa front 1

Front inside with front removed, watch the beautiful wave lenght scale.At the left the pushbuttond for rading the correct currents of each tube, and the low tension voltage of 2 volts, the high voltage of the powersupply.

KWEa MF

Medium wave stage upside at the left. Just in the lower mid the test voltmeter.

KWEa testbank 2

Testing the voltages of the different stages.

Frequency scale dial

The beautiful frequency band scale. Each band a different color.

ERZ side view

GL. ERZ b

Quick navigation - Categories:
  1.  Charging generator GL.ERZ400 b

 Charging generator GL.ERZ400 b

battery charger

ERZ front

 

The “GL. ERZ b” generator delivers 12 to 16 volts by 400 watts . This a very beautiful collectors item.

It was made by the manufacture  Auto Union, who was also the manufacturer of the well known auto autocar Auto Union, used by the Wehrmacht.

It was often placed in the turret of the german tanks like Panter and Tiger. Also seen in armoured car vehicle  “Panzer Spahwagen”, with the radio “Funksprech F” in it. It was ment to use it for charging the batteries, when the batteries of them were almost discharged.

Because of the high powerconsumption of the transmitters/receivers used inside of a tank, this happens sometimes, when the motor was not running. Batteries were sometimes too weak for starting the motor.To let the tankmotors running, the fuel consumption was high and also the noise of the motors. The generator was in that case, placed outside the tank and placed back in the turret, when not in use.. The generator did not make so much noise.

At the front was also a connection on it for direct feeding the radio’s in other situations.

ERZ side view

Here a side view of the generator.

ERZ side view 2

Another side view.

Erz handleiding

“Bedienungsanweisung” generator.

Fusprech F overview

Funksprech-f

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  1. Funksprech-f.

Funksprech-f.

The Funksprech F is a transmitter/receiver for use in armourned car vehicles. For example the Panzerspah wagen.

 

 

My Fusprech F.

Fusprech F overview

Left below in the picture  the headphones type DFH-b, at the left below the throat microphone..

Frontcover Fusprech.

The inside of the frontcover with an overview of the installation. Just click at the picture to enlarge and seeing it.

Russland, Funker in gepanzertem Fahrzeug

A radio operator controlling the radio in a armoured car, a “Panzer Spah Wagen”, in Russia during WW2. Probable, seeing  to the second person, there  an attack with mortar  in the neighbourhood?  Watch also the mark on  at his uniform of the left person ,telling us, he was a radio operator,  or called “Funker”.

Stern Antenna.

This antenna was very often in use in radio vehicles of the German Army. There were more types of them, some smaller ones, used on tanks.

I did use the antenna once, to see how the results were. I putted it on an isolated mast at a height of 4 m above the ground and managed to match it to my modern transciever by means of a 4 meter single  feeder to  a little tuner. Only in the 15 meter amateurband it was possible. AT good propagations I manage to work amateurs through all Europe. Only the principle of functioning is not all clear to me.

I think it is a toploaded vertical. Only the vertical part, being the 4 meter feeder to the tuner , is radiating?  The “Stern”is only a toploading or top capacity for a better matching?  Or is the “Stern” also radiating in a horizontal way. For me an open question.

Origina,l the antenna was ment to have a good  range and signal strenght  at nearby. Not suitable for skywave transmissions.

But my experience was quite different, just suitable for skywave.

Maybe someone can tell me. I only got an explanation of the principle in the books about Russian radio after the war. (Gunther Fietsch).

Stern antenna

The Stern Antenna in use in the back of my garden. Just below in the picture the 4 meter feeder wire to the tuner.

cf959f6b87e2a68262de4413cf6a58a10.97504300_1257868193_img_0277

RPG4 tube-tester

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  1. RPG4 tube-Tester.

RPG4 tube-Tester.

 

This german  tubetester is all original. It is a very handy tester for testing the tubes in my german radio’s. It is remarkeble, that even a lot of  american tubes can be tested. So a very useful tubetester.

rpg4vooraanzicht

Picture Above: RPG4 Front View.

In the lid, there is a cable, which you can connect to tubetester itselves. So alle the tube testscockets in the lid comes available.

rpg4binnen

Picture above: RPG4 inside look.

Right the rectifier tube, left the voltage stabiliser tube,