METZ JAVA YEAR 1972.

The METZ JAVA television set is a 23 inches B/W television  with 7 programs preselection keyboard and tone controls.
The mechanical turret approach to television tuning has been used almost exclusively for the past 60 years. Even though replete with the inherent disadvantages of mechanical complexity, unreliability and cost, such apparatus has been technically capable of performing its intended function and as a result the consumer has had to bear the burdens associated with the device. However, with the " recent "  Broadcast demands for parity of tuning for UHF and VHF channels, the increasing number of UHF and cable TV stations have imposed new tuning performance requirements which severely tax the capability of the mechanical turret tuner. Consequently, attempts are now being made to provide all electronic tuning to meet the new requirements.
The present invention relates to a pushbutton tuner for radio sets, television sets and other apparatus, and particularly for TV  sets or the like. A pushbutton tuner of this type presents a plurality of pushbutton assemblies mounted on the tuner frame for in and out movement, each one of these pushbutton assemblies carrying adjustable memory means for recalling a memorized broadcast frequency when the pushbutton assembly is pushed inwardly. Conventional pushbutton tuners comprise a plurality of pushbutton assemblies arranged side by side and parallel to each other, longitudinally slidable inside a tuner frame, and each carrying an abutment member which can be angularly adjusted around an axis which is perpendicular to the plane of the pushbutton assembly, and is associated to means for locking or unlocking same so as to adjust its angular position at will and maintain such position once adjusted. Each pushbutton assembly cooperates, by means of its abutment member, with the inclined edges of a V-shaped notch obtained in a control bar transversely arranged with respect to the pushbutton assemblies, said control bar being operatively associated to the tuner group of the radio set, so as to actually control same as a consequence of its longitudinal movement promoted by the insertion of any pushbutton assembly and by the consequent action of the abutment member on the inclined edge of the V-shaped notch. In the known pushbutton tuners, the abutment member consists of a pin which is mounted angularly adjusted on each pushbutton assembly. Whenever a pushbutton assembly is pushed inwardly to select a predetermined frequency, the abutment pin rests, at the end of the inward movement of the pushbutton assembly, in the vertex angle of the associated V-shaped notch of the control bar. In this end position, the abutment pin normally results to be inclined with respect to the longitudinal axis of the pushbutton assembly and consequently also inclined with respect to the thrust force exerted by the pushbutton assembly. Consequently, a component of the said thrust is transmitted from the abutment pin to the control bar, in the longitudinal direction of the said control bar, and tends to longitudinally shift said control bar. As a consequence, in the pushbutton tuners of this type, the tuning cannot be very accurate, also in consideration of the fact that most of the times the pushbutton assemblies are pushed, by the user, with great force.
Tuning is performed with mechanic tuner and scala.

It's a hybrid technology set with tubes and semiconductors.

(Set kindly donated to me by Marshal Elia Z.)

The B/W Tubes Television set was powered with a External Voltage stabiliser unit for Television (portable metal box) which relates to voltage regulators of the type employed to supply alternating current and a constant voltage to a load circuit from a source in which the line voltage varies. Such regulators are frequently provided employing saturable core reactors and condensers connected in circuit...  in such manner as to provide a plurality of variable voltage vectors which vary in different senses, as the line voltage varies, but which add vectorially in such manner that t
voltage stabilization
is automatically effected by the provision of an inductive pilot control device which is adapted to provide two excitation supply voltages for producing excitation or satuation of two magnetic circuits of a reversible booster transformer unit or units and diversion of flux from one magnetic circuit to the other, the booster unit being energized by primary windings from the A. C. supplysystem and being provided with a secondary winding or windings connected between the supply system and the corresponding inain or distribution circuit and in series therewith, through which a corrective boost voltage is
introduced into the circuit under the influence of the pilot control device, of an amount equal to that of the supply voltage fluctuation which initiated it and appropriate in polarity and direction for restoring the voltage to normal value and providing automatic stabilization of the circuit voltage against supply voltages which fluctuate above and below normal value.

Their vector sum remains substantially constant upon variations in line voltage, for providing automatic voltage stabilization of single or multiphase A. C. circuits where the supply voltage and frequency are subject to variation above and below normal value and where the load is subject to variation between normal limits.
The pilot control device which may be employed singly or may comprise three units or their equivalent when applied to multiphase supply systems comprises a pair of closed magnetic circuits or cores constructed of strip wound magnetic material or stacked laminations, the two
circuits forming a pair being constructed of materials possessing dis~similar magnetic characteristics when jointly energized by identical windings in series or by a collective primary winding, the said magnetic circuits being suitably proportioned to provide equal fluxes when energized at normal voltage.

The pilot control device is provided with a main and an auxiliary secondary winding or group of windings, the main secondary winding or windings being adapted to provide a voltage representing the difference in the fluxes of the two circuits to which it is jointly associated, while
the auxiliary secondary winding embraces only one circuit, preferably that subject to the least amount of flux variation. Either of the windings consists of two equal sections or in effect a double winding with a center tapping to which one end of the single winding is connected.

The voltage in the single secondary winding of the pilot device becomes directionally additive to that in one half of the tapped secondary winding a nd substractive in respect to that in the other half. When the supply voltage is normal the voltage provided by the single secondary winding is zero, since there is no difference of flux in the two magnetic circuits, and the two excitation voltages
produced in the halves of the other secondary winding are equal and when connected to the two excitation windings of the booster units, do not produce any diversion of flux between the two circuits or sets of circuits in the magnetic system of the booster transformer unit become equal, and since the series winding on the booster unit is arranged to provide a voltage due to the difference of
the fluxes in its two magnetic circuits or sets of magnetic circuits, no corrective voltage is introduced into the main circuit by the booster. If, however, the supply voltage varies from normal the pilot control device provides a voltage across the one secondary winding due to the difference in the fluxes of the two dis-similar magnetic circuits of which it is comprised, which voltage is combined with thosc in the halves of the other secondary winding to provide two excitation voltages which vary complementarily to each other as the supply voltage fluotuates, and cause a transference of flux between the two
circuits or groups of circuits in the booster unit and automatically provide a corrective boost voltage in the main circuit in which the series winding of the booster transformer is included of a value equal to that of the variation in supply voltage which initiated it.
The pilot device may be arranged in various ways, forboth single phase and multiphase operation, as exemplified by the constructions hereinafter more fully described.Similarly, numerous arrangements of the booster transformer unit are possible, some of which are hereinafter described in detail. The booster transformer unit embodies thc principles of the inductive devices described in my co-pending Application No. 411,189, filed February 18, 1954.

As an alternative to the provision of an auxiliary secondary winding on the pilot control device this may be
replaced by an independent or external source of supply,which may be either subject to or independent of supply voltage variation, provided such supply may be arranged with a center tapping if required.

Feed-back arrangements may be employed for providing compensation against voltage drop due to the effects of load in various ways. These are preferably providedon the booster transformer unit and may comprise a current transformer in one or more lines of the main circuit,
the secondary output of the transformer being rectified and arranged to energize an additional excitation winding on the booster transformer unit which in clfect increases the amount of the corrective boost voltage as the load increases.

 Metz: 70 Years’ of "made in Germany" quality

Customer-oriented and successful

Metz, one of the German electronic industry’s most independent and successful companies, celebrates its rich tradition as it enters its seventieth year. An amazing success story during a period when numerous well-known manufacturers had to concede to difficult market conditions and suspend business activity. In 1938 Metz began producing electronic equipment. During subsequent years Paul Metz led his company to a position of worldwide importance. The company currently focuses on three business areas: entertainment electronics, photo electronics and plastics technology. Numerous innovations shape both past and present and create a promising potential for the future. To date this has united the company’s development and production, which is still owner-led and based in Germany, guaranteeing a consistently high "made in Germany" standard of quality.

Back to the future

Metz was founded back in 1938. From this point in time, Paul Metz managed his company with untiring effort, always introducing new ideas to steadily grow the business. In 1947 he began producing radio sets. He expanded to other fields in the following years. And to this day Metz stands its ground successfully in the entertainment electronics, photo electronics and plastics technology sectors.

In 1993, Paul Metz died at the age of 82. Since then, his wife Helene Metz has continued with the company’s success story undetered. Entrepreneurial spirit combined with responsibility and committment to employees and society certainly characterise her management style; innovative ideas and excellent quality lay the basis for the positive evolution of a company. "My husband and I have always invested in the company and promoted its development. Independence was important to us. At the same time, we always attached great importance to excellently trained, highly motivated employees. And nothing will change these values in future."

Photo electronics: Metz flashguns attain world fame

In 1952, Paul Metz went in into the flashgun business and began marketing an emblematic trend-setting innovation in 1979 with the introduction of the worldwide single SCA adapter system which made it possible to attach Metz flashguns to cameras of all well-known brands and went on to establish Metz as one of the leading worldwide brands in this area. Since then, Metz flashguns have been exported to over 90 countries. The latest successful model was voted "the best flash unit in Europe" at the end of 2007. It was the world’s first flash to be equipped with a USB interface. The individual firmware for every version of the model can be easily updated via computer and internet by means of this interface.

Entertainment electronics: Metz - reliable trade partner

In 1955, Metz entered a business sector which later became its most important source of revenue - the production of television sets. This sector was further expanded in 1967 with the development and production of their own brand of colour TVs. Around this time, Metz began selective sales in the specialist consumer electronics trade, which forms a cornerstone of Metz’s service-oriented recipe for success to this day, ensuring the customer gets an additional service benefit as well as excellent products.

In 1990, the first TV set with Metz’s own 100-Hertz technology was introduced. The excellent, flicker-free image quality delighted both consumers and specialist publications.

In 1995, Metz came up with an innovation in the field of TV which continues to make the product line flexible, unique and successful to this day: The modular-built TV chassis was launched. From the turn of the Millennium, the first digital tuner was integrated. Another milestone came in 2005 with the introduction of their own-brand LCD-TV. Since then, flat screen TV sets with innovative technologies have been developed and produced at the company’s Zirndorf site with the "made in Germany" quality seal. At the same time the opportunity get into high definition television meant that in 2007 integrated HDTV modules were introduced into the Metz product range – unique worldwide – and which can also be retrofitted.

The Metz team always manage to weigh up the future realistically, as you can see from the current product range, which is constantly evolving and supplemented with new components that offer great marketing opportunities. Latest example is the implementation of HD panels with high resolution when operating in 100 Hertz DMC-technology and integrated hard disc recorder at IFA 2008. All TV sets of Metz offer the benefits of flexible retrofitting or exchanging of modules thanks to the Metz digital module concept, on which every chassis is based on.

Plastics plant: Metz - renowned partner for system solutions

Metz’s third line of business came about in 1957: The hi-fi furniture plant at Zirndorf went into operation making wooden cabinets for radio and TV sets. It expanded when it began plastics production in 1969. To this day, this sector represents another important constituent for Metz, especially in the production of its own high-quality TV cabinets. But renowned industrial partners also use the reliable production line at the German site with all its individual system solutions. The Metz plastics plant is the right place to go, from choosing suitable materials for a product concept, up to the provision of injection moulding forms. Complex techniques are used at the Zirndorf factory: interior gas pressure processes, thermoplastic foam injection moulding processes and ultrasonic welding and inmold technology, to name but a few.

Metz - traditional company on a solid foundation

After its formation, Metz went on to enjoy seven decades of continual success. At present, the company employs about 680 people, with a turnover of €129 million in 2007. The development, production and sales departments are grouped together on a 86,000 square-metre site. To this day, the company owes its positive development to the introduction of more innovative products and processes in all corporate divisions which play a large part making the products technically feasible and user-friendly.

"Our company stands on a solid foundation. Our planning for the next few years shows great promise; we will go on to further improve our core competences," says managing director Dr. Norbert Kotzbauer, who currently runs the company with Helene Metz. " Metz’s strength is the combination of excellent "made in Germany" quality, sure-fire future product concepts, clear marketing structures and absolute customer focus."

Review of key points:

• 1938: Company founded by Paul Metz
• 1947: Production of radio sets begins
• 1952: Flashgun production begins
• 1955: Start of black-and-white television set production
• 1957: The hi-fi furniture plant in Zirndorf goes into operation
  
• 1967: The beginning of colour television set production
• 1969: Start of plastics production
• 1979: Development of the SCA system for adapting cameras from different manufacturers to Metz flashguns
• 1987: Transformation to a GmbH & Co. KG
• 1990: Production of the 100-Hertz TV sets starts
• 1993: Founder Paul Metz dies. Wife Helene Metz carries on the company
• 1995: Start of the Metz module concept
• 1997: The Paul and Helene Metz Foundation is formed
• 2000: Start of the Metz digital module concept with the ability to retrofit future technologies
• 2002: Ten-millionth Metz flashgun
• 2004: A world first: Digital, adaptive flashgun MB of 28 CS-2
• 2005: First presentation of developed LCD-TV equipment "Made in Germany"
• 2006: Presentation of the first flashgun with an innovative USB connection
• 2007: LCD-TV product line with HDTV reception and unique ability to retrofit HDTV
• 2008: Wide LCD-TV range with high resolution 42” Full HD panels,
  100 Hz DMC-technology and integrated hard disc recorder.
• 19 November 2014: Metz filed for insolvency.
• January 2015: About 110 of the 540 employees will be laid off.
• March 2015: Two investors were found. The company will be split in two. The TV business is taken over by the Chinese electronics manufacturer Skyworth as Metz Consumer Electronics GmbH, whereas the plastics technology and flash business were bought by the local Daum Group (Germany) to firm Metz mecatech GmbH. 298 of the employees will be taken over.

The company filed for insolvency in 2014 and backed up by new investors now refirms as two independent companies Metz Consumer Electronics GmbH and Metz mecatech GmbH since 2015.

 (Again one more time......one BIG more step ..........Europe=Africa !!!!!!!!!!!!)

Further notes and References:

• "Metz-Werke GmbH & Co. KG". Retrieved 2009-04-25.
• "Metz Mecablitz 54 MZ-4i Preview". Archived from the original on November 20, 2008. Retrieved 2009-04-25.

"Contact person Archived 2011-09-25 at the Wayback Machine." Metz. Retrieved on 17 September 2011. "Metz-Werke GmbH & Co. KG, Ohmstr. 55, 90513 Zirndorf"
"TV-Hersteller Metz ist pleite". 19 November 2014 – via Sueddeutsche.de.
Germany, Stuttgarter Zeitung, Stuttgart,. "Fernsehgerätehersteller Metz: Dem Niedergang folgt die Pleite".
http://www.metz.de/de/presse/pressemitteilungen-unternehmen/2015/15-01-metz-fortfuehrung.html?mobile=127^{[permanent dead link]}
http://www.metz.de/de/presse/pressemitteilungen-unternehmen/2015/15-05-metz-investor.html?mobile=127^{[permanent dead link]}
"Wirtschaft". DIE WELT.
 
metz-mecatech.de: Impressum
Titel der Sonderausstellung „Made in Franken. Von Hinterhoffabriken und Weltkonzernen“ auf der Website der Stadt Fürth, abgerufen am 29. August 2018

br.de: 110 Mitarbeiter müssen gehen (Memento vom 22. November 2014 im Internet Archive)

Metz-Werke GmbH & Co. KG: Jahresabschluss zum Geschäftsjahr vom 1. Januar 2011 bis zum 31. Dezember 2011. auf Bundesanzeiger.de

Blitzgeräte

Produktionslösungen

SMD-Produktion

Firmenhistorie auf der Herstellerseite, abgerufen am 29. Januar 2016

http://www.br.de/nachrichten/mittelfranken/inhalt/metz-rettung-zirndorf-100.html (Memento vom 1. Mai 2015 im Internet Archive)

http://www.br.de/mediathek/video/sendungen/frankenschau-aktuell/tv-metz-aufschwung-100.html (Memento vom 21. November 2015 im Internet Archive)

Barbara Ohm: Fürth - Geschichte der Stadt. Jungkunz, 2007, ISBN 3-9808686-1-3

70 Jahre Metz, photoscala.de, 11. März 2008

Metz hat Insolvenz beantragt, heise.de, 20. November 2014

TV Hersteller Metz ist pleite, Süddeutsche Zeitung, 19. November 2014

Nach dem Niedergang folgt die Pleite, Stuttgarter Zeitung, 22. November 2014

Hans Kratzer: Wou die Hasen Hoosn und die Hosen Huusn haaßn. Süddeutsche, 12. Januar 2017

Rundfunkmuseum: Metz-Schau endet. nordbayern.de, 18. April 2009