SALORA 25D70 VT 5332 13 60 YEAR 1988.

 

SALORA 25D70 VT  5332 13 60  YEAR 1988.25 Inches (59Cm) stereo compact television from SALORA but this is fabricated by ITT/NOKIA. is A 25 inches color screen television with 40 programs PLL synthesized and remote and teletext.
The present 40 programs PLL tuner invention pertains to the field of tuning systems including a prescaler for dividing the frequency of the local oscillator signal by a factor selected to produce a divided frequency signal with a frequency suitable for processing in digital portions of the tuning system.


The phase locked loop (PLL) tuning systems are employed in television receivers since they can readily be digitally controlled and can produce local oscillator signals with extreme accuracy. Such PLL tuning systems include a source of reference frequency signals typically including a crystal oscillator, a fixed divider, commonly referred to as a prescaler, for dividing the frequency of a local oscillator signal to produce a frequency divided signal, a programmable divider for dividing the frequency divided signal by a programmable factor to produce a further frequency divided signal and a phase comparator for producing an error signal representing the phase and frequency deviation between the further frequency divided signal and the reference frequency signal. The error signal, which comprises pulses the width of which represents the magnitude of the deviation and the amplitude of which represents the sense of the deviation, is filtered to produce a tuning voltage for the local oscillator. The fixed factor is selected so that the frequency of the frequency divided signal can be processed by digital circuitry which comprises the remaining portion of the PLL tuning system. The programmable factor, commonly referred to as N, is set in accordance with the channel number of the selected channel. When the deviation between the further frequency divided signal and the reference frequency signal is at a predetermined small value, the loop is said to be locked. At this point, the frequency of the local oscillator signal is directly proportional to the frequency of the reference frequency signal by the programmable factor N.

The prescaler employed in such PLL tuning systems typically includes a high gain input amplifier arrangement to enhance the sensitivity of the prescaler. Such an amplifier arrangement can and typically does oscillate. This self-oscillation can occur at any frequency including that at or very near to the frequency of the frequency divided signal produced by the prescaler in response to the local oscillator signal for a preselected channel.
AV SCART  SOCKET Is present and headphones jack too.

Another example of everlasting tellye.

Even with a very high usage with many and many hours of running it's still functional with good picture and sound.

The set was featuring the COMPACT D2 CHASSIS with CTI chroma feature and multistandard capabilty.

CTI Picture Improvements circuitry in which colour signal, e.g. the line-sequential colour difference signals (R-Y,B-Y), is processed by an edge steepening circuit e.g. a colour transient improver and/or a two-line delay line in which the colour signals from two lines are added. The delay line may be part of a drop-out compensation circuit in which the colour signal of line n is replaced by the signal present for line n-2. A CCD-line may be used as the two-line delay line, and an amplitude limiter included. ADVANTAGE - Increased picture sharpness and improved signal-to-noise ratio.
In the past analog commercial TV transmission standards, the limited bandwidth of the transmitted chrominance (or chrominance difference) signals causes the received images to have perceptibly blurred colour transition edges. This is especially evident if the received image contains geometrical patterns, e.g. test-colour bars, and results in the loss of detail detectable in complex multicoloured fine patterns.

In order to improve the quality of the received images, it is necessary to provide the receiver end with circuits capable of restoring, as far as possible, the frequency components in the chrominance signals which have been filtered away by the requirements of the reduced transmission bandwidth: in this way, the temporal duration of the chrominance transition edges, and thus the spatial extent of the chrominance transitions on the TV screen, can be reduced, and the edge definition improved. Circuits of this type are called "Color Transient Improvement" ("CTI") or Chrominance Transition Enhancement circuits.

An important constraint on chrominance transition enhancement circuits is the need to ensure that the center of the chrominance transition is unaffected by the enhancement process, so that the center of the chrominance transition after the enhancement process is still aligned with the center of the associated transition in the luminance signal. Also, it is necessary to leave gradual transitions in time unaltered; preserve, and possibly enhance, fine patterns; prevent the introduction in the image of additional distortions; and ensure that the existing noise components are not accentuated.

The set has a Teletext feature comprising a receiver of teletext transmissions, under the form of a plurality of pages, inserted in the television signal, and divided into groups, for each of which an index page is available, comprising means for receiving and demodulating a television signal, furthermore decoding means for detecting the associated teletext signal and selection means for selecting a chosen page from those transmitted, and memory means for memorising at least one of the chosen teletext pages.
Receivers of teletext transmissions having the above mentioned characteristics are known.
The most recent of such receivers, those according to the TOP system (Table Of Pages, note the European patent application 0 264 565 or "Rundfunktechnische Mitteilungen", vol. 31, no. 2, 30 April 1987, Gerhard Eitz et al., "TOP-Ein Verfahren zur vereinfachten Anwahl von Fernsehtext-Tafeln durch den Zuschauer" for example) present numerous improvements for aiding the user to refer to the teletext, an operation famous for not being very user friendly for various reasons.
However also in such modern receivers, the Italian user that is consulting a Televideo page (a name in which RAI refers to teletext), for example belonging to the group "football", that being page N° 229, in order to return to the "football" index i.e. to page N°201, must depress three keys in succession 2, 0, 1; it is supposed that the user remembers the index number; otherwise it is necessary to return to the general index (100); from this point to the sports index (200) and finally to the Football group index (201).
The invention is based on the knowledge of the above inconvenience that represents a drawback in the actual teletext system.
The object of the invention is to allow the user to display the index page to which the chosen page belongs without a waiting interval.
It relates to a receiver of teletext transmissions, under the form of a plurality of pages, inserted in the television signal, and divided into groups, for each of which an index page is available, comprising means for receiving and demodulating a television signal, furthermore decoding means for detecting the associated teletext signal and selection means for selecting a chosen page from those transmitted, and memory means for memorising at least one of the chosen teletext pages; the characterising principle of the invention consists in the fact that the receiver comprises additional means for allowing the direct selection of the group index page to which the chosen page belongs.On the screen you will see at first teltext function call the  message "Automatic Multipage Process"

A SCART Connector (which stands for Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs) is a standard for connecting audio-visual equipment together. The official standard for SCART is CENELEC document number EN 50049-1. SCART is also known as Péritel (especially in France) and Euroconnector but the name SCART will be used exclusively herein. The standard defines a 21-pin connector (herein after a SCART connector) for carrying analog television signals. Various pieces of equipment may be connected by cables having a plug fitting the SCART connectors. Television apparatuses commonly include one or more SCART connectors.

Although a SCART connector is bidirectional, the present invention is concerned with the use of a SCART connector as an input connector for receiving signals into a television apparatus. A SCART connector can receive input television signals either in an RGB format in which the red, green and blue signals are received on Pins 15, 11 and 7, respectively, or alternatively in an S-Video format in which the luminance (Y) and chroma (C) signals are received on Pins 20 and 15. As a result of the common usage of Pin 15 in accordance with the SCART standard, a SCART connector cannot receive input television signals in an RGB format and in an S-Video format at the same time.

Consequently many commercially available television apparatuses include a separate SCART connectors each dedicated to receive input television signals in one of an RGB format and an S-Video format. This limits the functionality of the SCART connectors. In practical terms, the number of SCART connectors which can be provided on a television apparatus is limited by cost and space considerations. However, different users wish the input a wide range of different combinations of formats of television signals, depending on the equipment they personally own and use. However, the provision of SCART connectors dedicated to input television signals in one of an RGB format and an S-Video format limits the overall connectivity of the television apparatus. Furthermore, for many users the different RGB format and S-Video format are confusing. Some users may not understand or may mistake the format of a television signal being supplied on a given cable from a given piece of equipment. This can result in the supply of input television signals of an inappropriate format for the SCART connector concerned.

This kind of connector is todays obsoleted !

History of Salora
History starts beginning 1928 in Salo (Finland), where Messrs Nordell and Koskinen built crystal receivers for the new Finish broadcasting station. Rapidly other radios followed, on battery and in 1930 on home electricity. In 1945, after WO II, the company was renamed SALORA oy. This name was a combination of the town SALO and the product RAdio. "Salora" grew and 15,000 radios were produced yearly by 300 people.

In 1957 Salora started the production of black/white TV-sets and in the beginning of the seventies, 2,000 people were employed and they built 1,000 TV-sets per day. At the end of the fifties they started the production of wireless phones for the army and the railways.

In 1966 the export of televisions to Sweden was starting and at the end of the seventies 60% of the production was destined for export. In 1978 a co-operation was founded with NOKIA – under the name MOBIRA – for the production of mobile phones.

In 1981 monitors for IBM were taken into production as well. Thereafter, in 1982, the mobile phone division was sold to NOKIA and in 1984 NOKIA bought the majority of the SALORA shares. In the same year SALORA started to make TV-sets for a famous Japanese brand (HITACHI) for the total European market. In 1992 NOKIA took over SALORA completely.

In February 2006 the brandname SALORA is being secured and from now on Albers Trading B.V. will supply her complete range of products under the name SALORA.FINLUX (WAS) is a brand of consumer electronic related products, ranging from radio receivers to plasma televisions and DVD players; it was also the name of two companies that owned the brand. Over the years, the brand has been owned by several international companies. As of 2009, it is owned by the Turkish electronics manufacturer Vestel. (Back to all EUROPEAN  NATIONS  wrecking agenda!)

SALORA History

The name Finlux first appeared in 1964, when Iskumetalli began marketing TV sets with that brand name after being acquired by the Finnish Lohja conglomerate. Iskumetalli was founded in 1949 and had been manufacturing TV sets since 1958. In 1971, it was renamed Finlux; this was the first time that Finlux had been used as a company name.
In 1977, Lohja started manufacturing Electroluminescence (EL) displays after purchasing the development project, headed by Dr. Tuomo Suntola. The EL displays were manufactured using the atomic layer deposition (ALD) process developed in the project, and were marketed using Finlux brand.
In 1979, Lohja acquired another Finnish TV manufacturer, Asa Radio, which had been manufacturing radio receivers since 1927.
In 1991, the EL manufacturing was sold to Planar. A new company, Planar International was formed to continue manufacturing EL displays in Espoo, Finland. Planar later consolidated all of its EL manufacturing in Espoo and closed its Oregon EL facility.^[1]
In 1992, Finlux TV manufacturing was sold to Nokia, which already was manufacturing TV sets with brands Salora, Schaub-Lorenz and Oceanic.
In 1996, Nokia sold all its TV factories and brand names to Hong Kong company Semi-Tech, which continued manufacturing TV sets in one factory in Finland until the year 2000, when the Finnish subsidiary of Semi-Tech filed for bankruptcy.
A new company under the old Finlux name, owned by Norwegian company Otrum Electronics, was formed to continue TV manufacturing. However, they had serious troubles with their product line, which was based on CRT TVs. The market had swung to flat panel TVs and Finlux failed to switch in time. With 50 million euros in debt, the company filed for bankruptcy in September 2005.
In 2006, the Turkish electronics company Vestel, owned by the Zorlu Holding corporate group, bought the Finlux brand; it now focuses on flat panel TV sets and other consumer electronic products like DVD players/recorders and DVB sets.

Vestel, is Europe's largest and the world's third (THIRD WORLD) largest television manufacturer with a research and development unit of 500 employees and its plants manufacture 12 million television sets each year.
All production and other related operations in Finland have been discontinued.
As anybody can understand all is gone to be CRAP (Chinese or Turkish Bazar CRAP Fest basically the end of all technology !!!!!!!!!!!!).

R.I.P. FINLAND !

ITT Corporation (NYSE: ITT) is a global diversified manufacturing company with 2008 revenues of $11.7 billion. ITT participates in global markets including water and fluids management, defense and security, and motion and flow control. Forbes.com named ITT Corporation to its list of "America's Best Managed Companies" for 2008, and awarded the company the top spot in the conglomerates category.

,ITT's water business is the world's largest supplier of pumps and systems to transport, treat and control water, and other fluids. The company's defense electronics and services business is one of the ten largest US defense contractors providing defense and security systems, advanced technologies and operational services for military and civilian customers. ITT's motion and flow control business manufactures specialty components for aerospace, transportation and industrial markets.

In 2008, ITT was named to the Dow Jones Sustainability World Index (DJSI World) for the tenth time in recognition of the company's economic, environmental and social performance. ITT is one of the few companies to be included on the list every year since its inception in 1999.

The company was founded in 1920 as International Telephone & Telegraph. During the 1960s and 1970s, under the leadership of its CEO Harold Geneen the company rose to prominence as the archetypal conglomerate, deriving its growth from hundreds of acquisitions in diversified industries. ITT divested its telecommunications assets in 1986, and in 1995 spun off its non-manufacturing divisions, later to be purchased by Starwood Hotels & Resorts Worldwide.

In 1996, the company became ITT Industries, Inc., but changed its name back to ITT Corporation in 2006.


History

ITT was formed in 1920, created from the Puerto Rico Telephone Company co-founded by Sosthenes Behn.
 Its first major expansion was in 1923 when it consolidated the Spanish Telecoms market into what is now Telefónica.[
From 1922 to 1925 it purchased a number of European telephone companies. In 1925 it purchased the Bell Telephone Manufacturing Company of Brussels, Belgium, which was formerly affiliated with AT&T, and manufactured rotary system switching equipment. In the 1930s, ITT grew through purchasing German electronic companies Standard Elektrizitaetsgesellschaft (SEG) and Mix & Genest, both of which were internationally active companies. Its only serious rival was the Theodore Gary & Company conglomerate, which operated a subsidiary, Associated Telephone and Telegraph, with manufacturing plants in Europe.

In the United States, ITT acquired the various companies of the Mackay Companies in 1928 through a specially organized subsidiary corporation, Postal Telegraph & Cable. These companies included the Commercial Cable Company, the Commercial Pacific Cable Company, Postal Telegraph, and the Federal Telegraph Company.



International telecommunications

International telecommunications manufacturing subsidiaries included STC in Australia and Britain, SEL in Germany, BTM in Belgium, and CGCT and LMT in France. Alec Reeves invented Pulse-code modulation (PCM), upon which future digital voice communication was based. These companies manufactured equipment according to ITT designs including the (1960s) Pentaconta crossbar switch and (1970s) Metaconta D, L and 10c Stored Program Control exchanges, mostly for sale to their respective national telephone administrations. This equipment was also produced under license in Poznań (Poland), and in Yugoslavia, and elsewhere. ITT was the largest owner of the LM Ericsson company in Sweden but sold out in 1960.



1989 breakup

In 1989 ITT sold its international telecommunications product businesses to Alcatel, now Alcatel-Lucent. ITT Kellogg was also part of the 1989 sale to Alcatel. The company was then sold to private investors in the U.S. and went by the name Cortelco Kellogg. Today the company is known as Cortelco (Corinth Telecommunications Corporation, named for Corinth, MS headquarters). ITT Educational Services, Inc. (ESI) was spun off through an IPO in 1994, with ITT as an 83% shareholder. ITT merged its long distance division with Metromedia Long Distance, creating Metromedia-ITT. Metromedia-ITT would eventually be acquired by Long Distance Discount Services, Inc. (LDDS) in 1993. LDDS would later change its name to Worldcom in 1995.

In 1995, ITT Corporation split into 3 separate public companies:

* ITT Corp. — In 1997, ITT Corp. completed a merger with Starwood Hotels & Resorts Worldwide, selling off its non-hotel and resorts business. By 1999, ITT completely divested from ITT/ESI; however, the schools still operate as ITT Technical Institute using the ITT name under license.[1] Also in 1999, ITT Corp. dropped the ITT name in favor of Starwood.
* ITT Hartford (insurance) — Today ITT Hartford is still a major insurance company although it has dropped the ITT from its name altogether. The company is now known as The Hartford Financial Services Group, Inc.
* ITT Industries — ITT operated under this name until 2006 and is a major manufacturing and defense contractor business.
o On July 1, 2006, ITT Industries changed its name to ITT Corporation as a result of its shareholders vote on May 9, 2006.


Purchase of International Motion Control (IMC)

An agreement was reached on June 26, 2007 for ITT to acquire privately held International Motion Control (IMC) for $395 million. The deal was closed and finalized in September 2007. An announcement was made September 14, 2010, to close the Cleveland site.
Purchase of EDO

An agreement was reached September 18, 2007 for ITT to buy EDO Corporation for $1.7 billion. After EDO shareholders' approval, the deal was closed and finalized on December 20, 2007.


Purchase of Laing

On April 16, 2009, ITT announced it has signed a definitive agreement to acquire Laing GmbH of Germany, a privately held leading producer of energy-efficient circulator pumps primarily used in residential and commercial plumbing and heating, ventilating and air conditioning (HVAC) systems.


2011 breakup

On January 12, 2011, ITT announced a transformation to separate the company into 3, stand-alone, publicly-traded, and independent companies.


HISTORY OF Standard Elektrik Lorenz AG IN GERMAN:

Die Standard Elektrik Lorenz AG (heute Alcatel-Lucent Deutschland AG) ist ein Unternehmen der Nachrichtentechnik (früherer Slogan: SEL – Die ganze Nachrichtentechnik) mit Hauptsitz in Stuttgart. Zur Nachrichtentechnik zählen auch Informations- und Kommunikationstechnik, Telekommunikationstechnik (SEL war für die Röchelschaltung bekannt) und früher Fernmeldetechnik oder Schwachstromtechnik. Einen weiteren Geschäftsbereich hatte das Unternehmen in der Bahnsicherungstechnik, so wurden für die Deutsche Bundesbahn Relaisstellwerke und elektronische Stellwerke mit den dazugehörigen Außenanlagen (Signale, Gleisfreimeldeanlagen, Weichenantriebe) sowie die Linienzugbeeinflussung entwickelt und gebaut, welche auch bei ausländischen Bahnen Abnehmer fanden. Der Bereich gehört seit 2007 als Thales Transportation Systems GmbH (seit 02.2011 vorher Thales Rail Signalling Solutions GmbH) zum Thales-Konzern. Die bereits 1998 ausgegliederten Bereiche Alcatel Air Navigation Systems und SEL Verteidigungssysteme sind ebenfalls heute in Thales Deutschland beheimatet.
Fernseher Illustraphon 743 von 1957
„Goldsuper Stereo 20“ (1961)
Das Flaggschiff der erfolgreichen Schaub-Lorenz Kofferradios der sechziger Jahre: Touring 70 Universal
Erster Digitalfernseher der Welt (1983)

Bis 1987 gehörte SEL zusammen mit anderen auf dem Sektor Telekommunikation in anderen Ländern tätigen Schwesterfirmen zum US-amerikanischen Mischkonzern International Telephone and Telegraph (ITT). ITT verkaufte die Aktien-Mehrheit an den ITT-Telekommunikationsfirmen an die französische Compagnie Générale d’Electricité (CGE), die nach der Zusammenfassung mit den eigenen Telekommunikationsaktivitäten daraus die Alcatel N.V. bildete.

Die Standard Elektrik Lorenz AG wurde 1993 in Alcatel SEL AG umbenannt. Die Aktienmehrheit liegt mit über 99 % bei der Alcatel. Mit der Fusion von Alcatel und Lucent zu Alcatel-Lucent am 1. Dezember 2006 und der Neu-Firmierung beider Unternehmen in Deutschland zur Alcatel-Lucent Deutschland AG entfiel der Zusatz SEL.


Geschichte

Die beiden Stammfirmen des Unternehmens, die Mix & Genest AG und die Telegraphenbauanstalt von C. Lorenz, wurden 1879 bzw. 1880 gegründet. Das erste Patent von Mix & Genest datiert von 1883, das erste Patent von C. Lorenz ist aus dem Jahr 1902.

Das Unternehmen Mix & Genest war wesentlicher Teil der Standard Elektrizitäts-Gesellschaft (SEG), in die auch die Süddeutsche Apparatefabrik (SAF), die 1875 von F. Heller als "Friedrich Heller, Fabrik Elektrotechnischer Apparate" gegründet wurde, integriert wurde. Der technische Schwerpunkt von Mix & Genest bzw. SEG sowie der C. Lorenz AG war der klassischen Fernmelde- bzw. Funktechnik zuzuordnen. Die C. Lorenz AG baute in den 1920er und 1930er Jahren Großsender für den neu gegründeten Rundfunk.

1930 übernahm die International Telephone and Telegraph Company (ITT) die Aktienmehrheit der Mix & Genest AG und der C. Lorenz AG.

Die C. Lorenz AG positionierte sich mit der Übernahme der G. Schaub Apparatebau-Gesellschaft mbH im Jahr 1940 in der Entwicklung und Herstellung von Rundfunkempfängern. Ab dem Jahr 1950 wurden alle Geräte bei Schaub in Pforzheim gefertigt. 1952 wurde das Typenprogramm beider Unternehmen verschmolzen und der Lorenz-Radio-Vertrieb in die Firma Schaub integriert. Ab 1955 wurden die Geräte unter dem Namen Schaub-Lorenz vertrieben.

1956 wurde das Unternehmen SEG in Standard Elektrik AG umbenannt. Ebenfalls 1956 wurde ein Kabelwerk gegründet. Wesentlicher Motor für das 1957 gegründete Informatikwerk war Karl Steinbuch, der von 1948–1958 dem Unternehmen, zuletzt als Technischer Direktor und Leiter der Zentralen Forschung, angehörte.

1958 erfolgte die Vereinigung der Standard Elektrik AG mit der C. Lorenz AG zur Standard Elektrik Lorenz AG (SEL).

Die Standard Elektrik Lorenz AG übernahm 1961 die Graetz KG. Die Firmenteile Schaub-Lorenz und Graetz waren zusammen mit einem Bildröhrenwerk Bestandteil der Unternehmensgruppe Audio Video der SEL AG, die 1979 als Audio-Video-Elektronik in die ITT ausgegliedert wurde. Die Produkte, die unter anderem Fernsehgeräte, Radios, Autoradios, Kassettenrecorder, Weltempfänger und Lautsprecherboxen umfassen, wurden fortan unter dem Namen ITT Schaub-Lorenz vertrieben.

Versuche, auf dem neuen Gebiet der Raumfahrt-Elektronik Fuß zu fassen, waren auf folgende Produkte beschränkt:

* AZUR: Telemetrie/Telekommandogeräte
* Spacelab: Datenerfassung/Kommandoterminal.

SEL entwickelte zu Beginn der 1970er Jahre das Präzisionsanflugverfahren SETAC. Dieser Unternehmensbereich wurde im Jahre 1987 von der finnischen Firma Nokia übernommen.

1976 hatte SEL ein Grundkapital von 357 Mio. DM bei 33.000 Beschäftigten und einem Umsatz von 2,6 Mrd. DM.

1983 stellte S E L auf der Internationalen Funkausstellung Berlin 1983 mit dem ITT Digivision den weltweit ersten Fernseher mit digitaler Signalverarbeitung vor.

2003 wurden die Markenrechte am Namen Schaub Lorenz an die italienische General Trading SpA verkauft. Die neugegründete Schaub Lorenz International GmbH vertreibt seitdem unter dem alten Markennamen Schaub-Lorenz importierte Konsumelektronik aus dem unteren Preisbereich.

A brief note about on Television sets reliability and durability..........................

ANYONE with even the smallest experience of television engineering is bound to come up against that embarrassing question which is always so difficult to answer-"which TV shall I get?" The questioner is usually concerned about obtaining the cheapest and most reliable receiver that is available, and this same approach generally governs the choice between buying when new - restoring in this time. This is perfectly reasonable and often applies to other consumer products apart from TV. 

What does seem a little strange however is that no one ever seems to ask "which TV set gives the best picture?" Why not? Doesn't anyone care, or is the question too complicated to discuss? 

Yet the average person spends five and a half hours a day, every day, watching TV garbage:

The Propaganda TV Machine a.k.a. The Ministry of Truth delivers The Truth from The Government to the people.
At least, that's what they say. In fact, a Propaganda Machine is only employed by The Empire and used to brainwash people into Gullible Lemmings who believe that everything is all right when in fact, it isn't, and that the very people who could help them are their enemies..............

................... so the quality of the picture must be important........................ 

expecially for those football idiots so the they have the motivation to glue their assface on the screen all day long to discover better somewaht in their ignorance.

........Now................It is high time that people began to realise this simple fact, and to take an interest in the quality of the product that absorbs so much of their spare time. There are of course plenty of people who are genuinely interested in good picture quality. It is unlikely for example that so many readers of this Blog would be taking part in the magnificent TELEVISION colour receiver project, but more likely restoring  monochrome receivers or adapting old color ones, if they were indifferent to the quality of the picture obtained at the end of the day. But today times seems changing, the trend started by many readers of Obsolete Technology Tellye !  have had a significative rise up in recovering and restoring old CRT's TV's and started to build up collections by people in many lands worldwide.

 Good CRT  picture quality cannot however be achieved merely by connecting together the appropriate groups of circuits. Sometimes in fact even well established designs can present problems if they are assembled in a different way to the original or with non-standard components. 

So what constitutes good picture quality and what do you do when things go wrong? 

It is not much use delving into the textbooks because they are strangely unhelpful about this sort of thing.

  At least however we can here at Obsolete Technology Tellye !  establish some basic principles to use as a starting point. There is a difference between the kind of picture quality defects that you would expect to find in a manufactured receiver compared to one made by a home restorer / constructor. 

A CRT manufactured receiver usually has only minor faults and one wants to'assess how well it compares with the products of other set - makers.

Todays trade, threw a rather different light on matters however. Briefly, we found that during CRT boom periods for the setmakers reliability increased whilst during periods of diminishing sales a fall in the standard of reliability became evident, so you will find excellent sets from the 70s/80s. I had tended to think that a boom meant an attitude of anything goes to get as many sets out to meet the demand, with consequent corner cutting and use of whatever alternative components could be got hold of if necessary. The overriding point seems to be however that in boom conditions with a seller's market prices can be maintained and quality standards kept up whilst in flat market conditions there is overwhelming pressure on prices and reliability tends to fall. It is difficult to be too sure about this since the worst trading period coincided with the era of dual standard analog TV sets which may eventually but not certainly inevitably less reliable than the single -standard chassis which preceeded and succeeded them. It would however tie up  about the comparative reliability of colour and monochrome sets, since the era of colour boom coincides with a very flat period in monochrome set production and sales, that in talking about reliability means overall dependability rather than initial statistics for unboxed set condition. 

That all said is very applicable to todays times, with completely different technically means, reality where unfair market conditions focibly applied to European firms by an elite which has only the will and target to destroy European eritage at all levels with the main  point in destroying local economy.

It includes:

- A number of areas of law involving acts by one competitor or group of competitors which harm another in the field, and which may give rise to criminal offenses and civil causes of action.

- Trade libel, the spreading of false information about the quality or characteristics of a competitor's products, is prohibited at common law but still high present and unstopped.

- Various unfair business practices such as fraud, misrepresentation, and unconscionable contracts may be considered unfair competition, if they give one competitor an advantage over others expecially all from the so called ASIATIC MARKET.

Therefore:

All of todays apparates are literally absolute GARBAGE when new and resulting often broken when out of the box after purchase. Poor engineering, manufacturing and materials in the main part, combined with unfair massive import to Europe of such DUMP goods, at cheap prices in closed hard tight market (so they can be the only 2 3 competitor in foreign lands and all locals firms brought to death by heavy taxations, troublesome difficulties at all levels) and sold with medium to high prices respect to initial build costs !!

For that there can't be a comparation of reliability between a CRT TV SET and any one of todays sets, which often are resulting in a SCAM mainly under the technological part, emerging, even, from the first repair attempt !

...... And in the end you will NEVER SEE a restoring of ANY of the Actual todays electronic GARBAGE !
R.I.P.  EUROPE !

References:
 

Demerjian, Dave (25 October 2007). "As Skies Grow Crowded, FAA Preps Air Traffic Control 2.0". Wired.com. Archived from the original on 14 June 2013. Retrieved 25 May 2013.
"ITT Corporation 2017 Annual Report Form (10-K)" (XBRL). United States Securities and Exchange Commission. February 14, 2018.
"ITT Corporation 2016 Annual Report Form (8-K)" (XBRL). United States Securities and Exchange Commission. February 14, 2017. Archived from the original on March 16, 2017.
"ITT History". ITT Inc. Archived from the original on 2017-08-03. Retrieved 2017-08-02.
"At A Glance | ITT Inc". www.itt.com. Retrieved 2019-01-09.
www.itt.com https://www.itt.com/CMSPages/GetFile.aspx?guid=10cffa55-7c3c-4e27-b649-d0378feddc07. Retrieved 2019-01-09. Missing or empty |title= (help)
"ITT to break itself up, fueling share rally". Reuters. January 12, 2011. Archived from the original on July 1, 2012. Retrieved July 14, 2011.
Jacobs, Karen (July 14, 2011). "UPDATE 1-ITT sets names for planned spin-offs". Reuters. Archived from the original on July 1, 2012. Retrieved July 14, 2011.
Sobel, Robert (2000). ITT: The Management of Opportunity. Beard Books. pp. 35ff.
Macintosh, Norman B.; Paolo Quattrone (2009). Management Accounting and Control Systems. John Wiley and Sons. pp. 155–6.
Ingham, John N. (1983). Biographical dictionary of American business leaders, Volume 1. Greenwood Publishing Group. pp. 62–4.
Sampson, Anthony. The Sovereign State of ITT, Hodder and Stoughton, 1973. ISBN 0-340-17195-2
Garcia Algarra, Javier (2010). "The American influence in Telefónica's public relations strategy during the 20s and 30s" Archived 2013-06-01 at the Wayback Machine, IEEE HISTELCON 2010
AMERICAN VISITS HITLER. Behn of National City Bank Confers With Chancellor in Alps. New York Times, 1933-08-04, "Archived copy". Archived from the original on 2014-03-07. Retrieved 2013-05-16.
»Empfänge beim Reichskanzler«, Vossische Zeitung, Berlin 1933-08-04, Abendausgabe, Seite 3, "Archived copy". Archived from the original on 2014-03-07. Retrieved 2013-05-03.
The Office of Military Government US Zone in Post-war Germany 1946-1949, declassified per Executive Order 12958, Section 3.5 NND Project Number: NND 775057 by: NND Date: 1977
Leidig, Ludwig. Bombshell. sbpra, 2013 ISBN 978-1-62516-346-2
Farnsworth, Emma. "Farnsworth, Philo T. and Elma G." J. Willard Marriott Library, University of Utah. Archived from the original on 14 July 2014. Retrieved 8 July 2014.
"KONI shock absorbers". Archived from the original on 2015-05-18.
International Telephone and Telegraph Corporation Archived 2012-01-22 at the Wayback Machine at Funding Universe
Knippers Black, Jan (1977). United States Penetration of Brazil. The University of Pennsylvania Press. pp. 40–49.
Langguth, A. J. (1979). Hidden Terrors: The Truth about U.S. Police Operations in Latin America. New York: Pantheon Books.
Green, James (2010). We Cannot Remain Silent: Opposition to the Brazilian Military Dictatorship in the United States. Durham and London: Duke University Press. p. 89. ISBN 978-0-8223-4735-4.
Burn Before Reading, Admiral Stansfield Turner, 2005, Hyperion, pg. 99. Also see the article on Humberto de Alencar Castelo Branco. Also see BRAZIL MARKS 40th ANNIVERSARY OF MILITARY COUP Archived 2008-11-20 at the Wayback Machine, National Security Archive, George Washington University. Edited by Peter Kornbluh, 2004.
Ancona, Vincent S. (Fall 1992). "When the Elephants Marched out of San Diego". Journal of San Diego History. San Diego Historical Society. 38 (4). Archived from the original on 2013-07-05.
"ITT: No charges". Time Magazine. June 10, 1974. Archived from the original on 19 October 2012. Retrieved 24 October 2012. United States and American History: 1972 Archived 2007-03-18 at the Wayback Machine at trivia-library.com
Hinchey Report Archived 2009-10-20 at the Wayback Machine at US Dept. of State
Stout, David (January 30, 2003). "Edward Korry, 81, Is Dead; Falsely Tied to Chile Coup". The New York Times. Archived from the original on May 12, 2013. Retrieved May 5, 2010.
The Pinochet File: How U.S. Politicians, Banks and Corporations Aided Chilean Coup, Dictatorship Archived 2015-09-12 at the Wayback Machine. Democracy Now! September 10, 2013.
Montgomery, Paul L. (September 29, 1973). "I.T.T. OFFICE HERE DAMAGED BY BOMB; Caller Linked Explosion at Latin-American Section to 'Crimes in Chile' I.T.T. Latin-American Office on Madison Ave. Damaged by Bomb Fire in Rome Office Bombing on the Coast Rally the Opponents". The New York Times. Archived from the original on May 12, 2011. Retrieved May 5, 2010.
Ayers, Bill. Sing a Battle Song: The Revolutionary Poetry, Statements, and Communiques of The Weather Underground
Wasserstein, Bruce. Big deal: the battle for control of America's leading corporations
Associated Press (23 November 1997). "Obituary: Harold Geneen, 87; Led ITT's Growth for 18 Years". The New York Times. Archived from the original on 27 March 2016.
Viswanathan, T. Telecommunication Switching Systems and Networks, p.225.
US Patent 4,201,891 at freepatentsonline.com
International Telephone Telegraph Corp at encyclopedia.com
Magnet, Myron; Andrew Evan Serwer (11 November 1985). "IS ITT FIGHTING SHADOWS -- OR RAIDERS?". Fortune. Archived from the original on 29 April 2014.
Chapuis, Robert J.; Joel, Amos E., Jr. "IX-7: "The ITT (now Alcatel) System 12"". 100 Years of Telephone Switching.
"ITT Earnings Decline 33% for 3rd Quarter" Archived 2011-12-24 at Wikiwix, Los Angeles Times, 5 November 1985.
Bartlett, Christopher A.; Ghoshal, Sumantra (2002). Managing Across Borders (2 ed.). Harvard Business School Press. ISBN 978-1-57851-707-7.
ITT Telecom Archived 2016-12-20 at the Wayback Machine, The New York Times, 26 June 1984.
"ITT Makes Sale To Southern Bell" Archived 2016-12-20 at the Wayback Machine, The New York Times, 21 March 1985.
ITT System 12 Archived 2016-09-20 at the Wayback Machine at frankoverstreet.com
Hinman, Catherine."ITT Division In Brevard Will Furlough 60" Archived 2011-12-23 at Wikiwix, Orlando Sentinel, 14 March 1986.
Alcatel-Lucent Timeline Archived 2012-02-03 at the Wayback Machine at alcatel-lucent.com
Alcatel SA Company History Archived 2012-01-22 at the Wayback Machine at Funding Universe
"ITT Accepts $3.6 Billion Alcatel Sale" Archived 2016-03-06 at the Wayback Machine, The New York Times, 4 March 1992.
"Archived copy". Archived from the original on 2016-09-08. Retrieved 2016-09-13. ITT Tech closes its doors, blaming ‘unconstitutional’ US sanctions
"COMPANY NEWS; Metromedia Deal For 2 ITT Units" Archived 2017-12-19 at the Wayback Machine, The New York Times, 16 March 1989.
"Company News; Starwood Lodging in $2.1 Billion Deal with Vnu". The New York Times. 1997-12-19. ISSN 0362-4331. Retrieved 2018-05-29.
Webpage at ITTESI.com Archived October 22, 2006, at the Wayback Machine
Nunez, Michael (September 6, 2016). "ITT Tech Is Officially Closing". Gizmodo. Archived from the original on September 6, 2016. Retrieved September 6, 2016.
Center, Arbitration and Mediation. "WIPO Domain Name Decision: D2001-0166". Archived from the original on 2001-06-10.
Lindsey, Sue. "ITT Fined $100M for Illegal Tech Exports"^{[dead link]}, Associated Press, March 27, 2007.
Cullen, Drew. "ITT Fined for Illegal Exports" Archived 2011-02-24 at Wikiwix, The Register, 27 March 2007.
"Consent Agreement, 2007: ITT Corporation" Archived 2009-10-10 at the Wayback Machine U.S. State Department, 2007.
"ITT fined $100 million for illegal exports". CNN. 27 March 2007. Archived from the original on 28 March 2010. Retrieved May 5, 2010.
"ITT Corp. Acquires EDO in $1.7B Deal". Archived from the original on 2016-08-17.
"Archived copy". Archived from the original on 2011-09-23. Retrieved 2009-01-03. 67 (block): The International Telephone and Telegraph Building, erected in 1928 by Garment District developer Abraham Lefcourt as the Lefcourt Exchange Building, was almost immediately bought by ITT--which expanded the building to take over the whole block by 1930.
Holusha, John. "Commercial Property /75 Broad Street; Turning Buildings Into Telecommunications Hubs" Archived 2016-03-16 at the Wayback Machine, The New York Times, 10 October 1999.
http://www.thecityreview.com/parkave.html. Archived from the original on 2012-01-20. Missing or empty |title= (help)
Deutsch, Claudia H. (21 May 1989). "REFORGING THE 'GENEEN MACHINE'". The New York Times. Archived from the original on 28 August 2016.
"International Telephone & Telegraph ITT Information and History". Archived from the original on 2016-03-29.
"Radio Tower Demolished". The New York Times. 5 April 1996. Archived from the original on 22 July 2010. Retrieved 2010-07-23.
"ITT Avionics Gets $19.6M Air Force Pact". Bergen Record. 19 September 1991. Archived from the original on 18 May 2013. Retrieved 2010-07-23.
(August 20, 2004.) "ITT Industries Receives Contract for $24.9 Million." Archived 2012-04-20 at the Wayback Machine Impeller.net Archived 2011-11-01 at the Wayback Machine. Accessed November 2011.
(in German) https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnKTQ77fJC1zPOqLucj9Ld9DOZoteOPpCdq21SAyBjdDgHDWGgFfxgS6C__apBgbZyyouh4vXtL2fUJUK8DWbrPlzriwCroyMR-ci_t_9Ti3Yf5vGJw-jrBSZV7J8LsyvLEYYfGm61RkUU/s1600/ITT-2805_SLK-AD2.jpg. Archived from the original on 2018-05-01. Missing or empty |title= (help)
"Consola "pong" Tele-Match (versión con paddle) (1977)". retroordenadoresorty.blogspot.it (in Spanish). Archived from the original on 1 May 2018. Retrieved 14 February 2018.
"ITT DIGIVISION 3447 OSCAR YEAR 1986". Obsolete Technology Tellye. Retrieved 14 February 2018.
"Kellogg Switchboard & Supply Co". Dictionary of Leading Chicago Businesses. Archived from the original on 18 August 2015. Retrieved 15 February 2018.
"Über ITT - ITT". www.itt-deutschland.de (in German). Archived from the original on 17 October 2017. Retrieved 15 February 2018.
"Nokia Announces Final Sale of its Television Manufacturing Business - Nokia". Nokia. Archived from the original on 2017-07-29.
"Über Karcher - ITT". www.itt-deutschland.de (in German). Archived from the original on 22 December 2016. Retrieved 14 February 2018.

--------------------------------------------------------------------------------------------------------------------------------------------------------------