GRUNDIG - MAJESTIC
4040 W / 3D

One of the greatest expressions of german technical refinement in 1954,
Her Majesty the Grundig-Majestic 4040W/3D.

At first glance this Grundig looks like a regular high class device of the prestigious german brand. It is not like that.

3D

At that time Grundig was producing its three high class models: the 4040, the5040 and the 5050.
These devices were produced both in 3D with side loudspeakers
and only with front loudspeakers.
Compared to front loudspeaker radios, 3D models are endowed with a strong depth effect as far as the sound image is concerned.

Motorized tuning

The three 3D system high class models were also equipped with a motorized tuning system.
It is clearly possible to manually tune the stations by employing the switch to exclude the motor.
The tuning mechanism is an authentic masterwork and it will be described as follows.
The video file (37,31 Mb), which can be downloaded by clicking on the icon below, best shows the functioning of the 4040W/3D.

Video 4040W/3D

Majestic

In those years Grundig began to intensely export its products to the USA. The demand got to such a high level that the joint-venture with the American brand Majestic was created.
Technical specifications of these devices were even stricter than those produced for the inner and the European market.
Grundig decided to produce devices that were suitable for European broadcasting systems while employing Majestic’s restrictive specifications. This 4040W/3D model is one of those rare Grundig/Majestic appliances

It is equipped with a double output transformer for low and medium-high frequencies.
Regular 4040W/3D used to be equipped with a single output transformer. The 4040W/3D has the powerful (18W) EL12 as its power tube.


Other than the electrostatic tweeter, the 4040W/3D has a huge elliptical multioctave woofer with a die-cast drum, which ensures a deep and sweet bass even with the central bass potentiometer (which I suggest).

Watching the big needle going through the scale of its own accord is extremely fascinating.
Due to its design and the robust piece of furniture, which works as a real loudspeaker, the sound of this device is extremely warm and well-rounded.
Further information about the extraordinary refinement of this device will be listed down below. A real delight both to be listened in on and to be seen.
Furthermore, its rareness makes of it a real collector’s item.

MAIN FEATURES
Year of production: 1954

Superheterodyne IF 460/10700
11 AM Circuits
11 FM Circuits

Wavebands:
Medium Waves (OM)
Long Waves (OL)
Short waves (OC)
FM (UKW)

Operating voltage (CA)
110; 125; 160; 220 Volts

4 Speakers
1 Woofer
2 Midrange-Tweeters
1 Electrostatic Tweeter

Dimensions (LHD):
655 x 427 x 316 mm

Net weight: 18,5 kg

8 Tubes:
ECC85, EF89, EF89, ECC82, EBF80, EABC80, EL12, EM85

Optional module to receive the TV channels.

Rotating ferrite antenna for AM

This device has a remarkable standard equipment. Its features are listed below.

TONE CONTROL WITH LEVEL INDICATION

The tone control system is extremely efficient. Over the big tone control knobs there is a scale which progressively lights up indicating the emphasis on the band

A detail specific for “extreme” technical radios lovers: the high-tone control knob is linked to two thin ropes. One of them is for the position indicator of the control itself, whereas the other changes the position of the ferrite in the MF transformers modifying the inclination of the transformer’s curve.
By doing so high tones were attenuated/accentuated even before getting to the BF stage. Tone control was usually put into effect with the potentiometer on the tension amplifier stage.

ORIENTAMENTO ANTENNA

Another refined feature: like other devices ( also lower class) the ferrite antenna is rotable and it can be activated through an external knob.
It places the antenna orthogonally in respect to the repeater so as to receive the highest signal. As far as this device is concerned the ferrite antenna is introduced through a switch, which is automatically switched on when the knob is turned. The latter is coaxial to the volume knob.

The position of the antenna can be read through the transparency of the magic eye. The resulting effect is amazing. When the antenna is disconnected you can read AUS on the magic eye.

Inside the case there is dipole for FM reception as well as an adjustable ferrite antenna for AM reception.

Remarkable is the perception of the reception with the inner antennas. The employment of an outer antenna ensure and unbelievably good perception. This device was indeed produced when there were a few and very far from each other radio stations.

TUNING SYSTEM

The tuning system is a real masterwork.
When the tuning switch is on AUS the tuning is manual as in regular devices.

When the automatic tuning switch is on EIN the current station is “mechanically” stored..
Example:

I pushed UKW2 and I am listening to a 89.90MHz station.
If I now push any of the other tuning buttons, the motor will take the pointer to the last listened station.
Pushing then UKW2 again the motor tunes exactly at 89.90 MHz.

The process can be repeated for any station on UKW1 UKW2 MW1 MW2 and LW bands.

 

The mechanical memorization is achieved through a number of frictions, springs, steel tie-rods and levers that require an accurate calibration.

Once calibrated and oiled, the mechanical system is extremely reliable and robust.

Its cogged wheels and flexible steel-blade frictions prevent any possible slid. A remarkable example of mechanical engineering.

The tuning indicator is new

CONTROLS

On the left you can find the volume control (with incorporated loudness) and the ferrite antenna’s rotation control.
You can see the antenna position indicator and behind that the magic eye. The AM scale for short, medium I and II and long waves.
FM I and II scale.
On the lower left side there are the ON/OFF, record player, the long, medium 1, medium 2, short waves, FM1 and FM2 tuning button.
Lastly the tuning knob is supported by a big fly-wheel which creates a pleasant movement.
The tuning switch is coaxial to the tuning knob and you can see the automatic/manual tuning switch.
Below there are the two bass and high control knobs.

LOUDSPEAKERS

There are four loudspeakers.

The woofer is huge and extremely efficient.

The radio is equipped with an electrostatic tweeter on both sides for the 3D reproduction.

Remarkable the woofer’s dimensions compared to the valves.

Amazing sound

BACK SIDE

Output for external loudspeakers

Tape recordder input(tonbandgerat).

Record player input(tonabnehmer)

AM and FM antenna inputs and earth plug

THE RECONDITION

My daughter actively participated in the first cleaning phase. She used the same window pane demisting technique.

In order to access the complex string system and to grease the mechanical moving pieces I had to completely disassemble the front mechanical part.
A string has been substituted and all its mechanisms (cables, levers, frictions) oiled.
Frictions need to be calibrated with a 400 gr. bending moment each.


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