Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and information about some of the electronic, electrical and electrotechnical technology relics that the Frank Sharp Private museum has accumulated over the years .

Premise: There are lots of vintage electrical and electronic items that have not survived well or even completely disappeared and forgotten.

Or are not being collected nowadays in proportion to their significance or prevalence in their heyday, this is bad and the main part of the death land. The heavy, ugly sarcophagus; models with few endearing qualities, devices that have some over-riding disadvantage to ownership such as heavy weight,toxicity or inflated value when dismantled, tend to be under-represented by all but the most comprehensive collections and museums. They get relegated to the bottom of the wants list, derided as 'more trouble than they are worth', or just forgotten entirely. As a result, I started to notice gaps in the current representation of the history of electronic and electrical technology to the interested member of the public.

Following this idea around a bit, convinced me that a collection of the peculiar alone could not hope to survive on its own merits, but a museum that gave equal display space to the popular and the unpopular, would bring things to the attention of the average person that he has previously passed by or been shielded from. It's a matter of culture. From this, the Obsolete Technology Tellye Web Museum concept developed and all my other things too. It's an open platform for all electrical Electronic TV technology to have its few, but NOT last, moments of fame in a working, hand-on environment. We'll never own Colossus or Faraday's first transformer, but I can show things that you can't see at the Science Museum, and let you play with things that the Smithsonian can't allow people to touch, because my remit is different.

There was a society once that was the polar opposite of our disposable, junk society. A whole nation was built on the idea of placing quality before quantity in all things. The goal was not “more and newer,” but “better and higher" .This attitude was reflected not only in the manufacturing of material goods, but also in the realms of art and architecture, as well as in the social fabric of everyday life. The goal was for each new cohort of children to stand on a higher level than the preceding cohort: they were to be healthier, stronger, more intelligent, and more vibrant in every way.

The society that prioritized human, social and material quality is a Winner. Truly, it is the high point of all Western civilization. Consequently, its defeat meant the defeat of civilization itself.

Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

OLD, but ORIGINAL, Well made, Funny, Not remotely controlled............. and not Made in CHINA.

How to use the site:

- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

Every CRT Television saved let revive knowledge, thoughts, moments of the past life which will never return again.........

Many contemporary "televisions" (more correctly named as displays) would not have this level of staying power, many would ware out or require major services within just five years or less and of course, there is that perennial bug bear of planned obsolescence where components are deliberately designed to fail and, or manufactured with limited edition specificities..... and without considering........picture......sound........quality........

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

Have big FUN ! !

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All sets and apparates appearing here are property of
Engineer Frank Sharp. NOTHING HERE IS FOR SALE !

Wednesday, April 3, 2013




61 cm (24in)direct viewing television tube with metal backed screen
and reinforced envelope. A separate safety screen is not required.
Suitable for use in receivers with push—through presentation. This
tube is fitted with a ring trap base.

Deflection angle 110 deg

Focusing Electrostatic
Light transmission (approx.) 42 %
Maximum overall length 370 mm

This data should be read in conjunction with GENERAL OPERATIONAL


Suitable for series or parallel operation

Vh ’ 6.3 V

Ih 300 mA

The limits of heater voltage and current are contained in ‘General Operational
Recommendations — Television Picture Tubes.

Note - applies to series operation only

The surge heater voltage must not exceed 9.5V r.m.s. when the supply is
switched on. A current limiting device may be necessary in the circuit. to
ensure that this voltage is not exceeded.


Va2+a4 _ 20 20 kV

Vag (focus electrode control range) 0 to 400 0 to 400 V

V 400 500 V

Vg for visual extinction of focused raster -40 to -77 -50 to -93 V
*Vk for visual extinction of focused raster 36 to 66 45 to 80 V

*For cathode modulation, all voltages are measured with respect to the

SCREEN (metal backed)

Fluorescent colour White
Light transmission (approx.) 42 %

FOCUSING (Electrostatic)

The range of focus voltage shown in !Operating Conditions’ results in opti-
mum overall focus at a beam current at 250pA.


Diagonal deflection angle 110 deg
Horizontal deflection angle 98 deg
Vertical deflection angle 81 deg

The deflection coils should be designed to provide a pull—back of 4 .0mm on
a nominal tube .

cg_au 7.0 pF
ck_an 5.0 pF
°a2+a4-M 1500 to 2300 pF-(-
°a2+a4—B 600 PF


This tube has an external conductive coating, M, and in accordance with
the General Operating Recommendations this should be connected directly
to pin 5 and not to chassis. The electrical connection to this coating must
be made within the area specified on the tube outline drawing. The capaci-
tance of this coating to the final anode is used to provide smoothing for the
e.h.t. supply.


For flashover protection of the receiver, parallel spark gaps are included
for all the electrodes in the base of this tube, and the common connection
is made to pin 5. These spark gaps are intended as part of a system for
full flashover protection. A direct connection must always be made from
pin 5 to chassis, and the external conductive coating returned to chassis
only via pin 5, using short leads. Any electrode supplied directly from a
high energy source (such as the h.t. line) should be provided with a series


See note under this heading in ‘General Operational Recommendations —
Television Picture Tubes‘.

Centring magnet field intensity . 0 to 800 A/ In

Maximum distance of centre of
Vcentring field from reference line 57 mm

Adjustment of the centring magnet should not be such that a general reduc-
tion in the brightness of the raster occurs .


J .E.D.E.C. 126. For details see ‘General Operational Recommendations-
Television Picture Tubes‘ .


Any. The tube socket should not be rigidly mounted’ but should have flex-
ible leads and be-allowed to move freely. The bottom circumference of the
base shell will fallwithin a circle of: 40mm diameter which is centred on
the perpendicular from the centre of the face.

This tube is fitted with a pin protector in order to avoid damage to the
glass base due to bending of the base pins whilst handlingthe tube.

It is advisable to keep this pin protector on the base until it can be replaced
by the socket after installation of the tube in any equipment’.


Va2+a4 max. (at la2+a4 =0) (see note 1) 20 kV I
Va2+a4 min. 13 kV
+V max. 1.0 kV
-V max. 500 V
V’ max. 700 V
V min. 350 V
—vg(pk)b max. (see note 2) 400 V
-Vg max. (see note 3) 150 V
tIa3 max. 25’ pA
tlal max. 5 uA
Vh_k (see note 4)
Cathode positive
d.c. max. 250 l V
pk max . 300 V
Cathode negative
d.c. max. 135 V
pk max. 180 V
Rh_k max. 1 .0 M9
Zk_e max. (f=50I-lz) 100 kn
R max. 1.5 M52
Zg_k max. (f= 50}hz) 500 k9

Valvo Bauelemente GmbH is a Germany based company, specializing in the delevopment, manufacture and marketing of ferrite components for microwave and rf applications. Initially part of the Philips Components group this business has 30 years experience in the design and production of standard and special ferrite devices.
When Philips closed its activity located in Hamburg, Valvo Bauelemente GmbH continues this circulator and isolator business and started 1999 as an independent company, only 100 meters off the former Philips location.
AT ancient times VALVO was an components office of PHILIPS then the converted to the above company was started and the previous closed.

The Valvo GmbH celebrates on 1 1974 April its 50th anniversary. She is one of the largest component manufacturers in Germany and today supplies - with few exceptions - all electronic components for the consumer electronics and professional electronics.

The company's history began in 1924 - a year after the introduction of broadcasting in Germany - with the establishment of a radio ray tube factory by the Hamburg company CHF Müller. Benedictines built many companies that produced radio tubes and the brand "Valvo" one of the few that are pervasive in the long run. 1927 joined CHF Müller and radio tube factory with Philips companies, and the tube manufacturing was relocated to a suitable site in Hamburg-Lokstedt. Already in the 30s advanced to the manufacturing program to electrolytic capacitors, speakers, and special tubes Hochohmwiderstände.

The Development of the present comprehensive Valvo organization began after the war. In Hamburg-Lokstedt bigger and modern factory buildings for the manufacture of electron tubes were built in Hamburg-Stellingen began with the manufacture of ceramic capacitors, which was then developed into a long horn on, and in Herborn founded Philips is later taken over by Valvo work for Electrolyte and plastic film capacitors.

Valvo 1951, the production of ceramic magnetic components. The set up for this new manufacturing plant in Hamburg was already the largest of its kind in Germany. With the broadcast of the first experimental television broadcasts Began in 1951, the manufacture of television picture tubes. From these first attempts gave rise to the Bildröhrenfabrik Aachen, which is now the largest color picture tube plant in Europe. 1953 with the introduction of semiconductor technology in Hamburg-Lokstedt a key step in a new era has been done. From the radio tube factory, the tubes and semiconductor plants.

The sales departments have since 1955, a private office building in Hamburg, Valvo-house. They are supported by six branch offices in the care of professional clients. In addition, sales contracts are entered into with 13 distributors.

To Valvo organization in which more than 8000 employees, which are now the four works: the tubes and semiconductor plants in Hamburg, the Hamburg factory for electronic components, the Bildröhrenfabrik Aachen and the capacitors work Herborn. These large manufacturing plants pose a significant production potential; its importance is enhanced by cooperation with 120 components factories in 30 countries as part of the Philips company, including the Valvo GmbH is a subsidiary of the General Association of German Industry Philips (Alldephi).

Valvo has done in its 50-year history many contributions to the development of electronic engineering in Germany. In the radio tube factory in Hamburg, including the first Acid-tubes, the first German multigrid tubes as well as the first tube types for ac heater was manufactured in series. In the picture tube technique with the rectangular tube in standardized aspect ratio, of the 110 ° deflection and the picture tube, which can be operated without additional protective glazing, remarkable improvements have been introduced. Today, the partnership offered by Valvo "European television technology", under which one understands the euro color picture tubes and Ablenktechnik with strand wound saddle coils enforced. The latest development is the picture tube with Schnellheizkatoden. From the large number of special tube developments here only Hochleistungsklystron should be mentioned that works in many of the UHF television channels at home and abroad.

Also for semiconductors Valvo could play a key role early on. For example, in 1954, brought out types OC 70, OC 71 were first available in large quantities alloyed junction transistors on the German market, and the diffusionslegierten POB transistors (pushed out base) extended from 1959 the scope of the transistor in the FM area. A striking example of the successes of modern semiconductor technology, the close tolerance varicap BB 105, with which the automatic tuning for FM and TV reception could be solved economically justifiable.

1967 originated in Hamburg analog integrated circuits. They were among the first of such products manufactured in Europe. Today Valvo has a leading position in the field of integrated circuits for color televisions. The second generation of these circuits is already matured. It contributes significantly to the reduction of the number of individual components and the necessary adjustment processes. Also numerous radio receiver as part of a progressive circuit design, advanced integrated circuits are available.

On the development of soft and hard magnetic oxide ceramic materials has been working steadily in recent decades, for example, would be the 110 °-Ablenktechnik without the high magnetic quality and dimensional accuracy of modern yoke rings from "Ferroxcube 3C2" not have been possible. For line transformers and modern power transformer, the new material "Ferroxcube 3C8" was introduced, and in the area of ​​hard magnetic materials are "ferroxdure 380", "ferroxdure 260" and "ferroxdure 270" available.

On this basis, the broad technical Valvo GmbH presents its 50th anniversary as one of the leading suppliers of electronic equipment industry with a large production capacity and with the most modern technical equipment - a solid foundation for the further development of the position it has reached today.

Die Valvo GmbH begeht am 1. April 1974 ihr 50jähriges Firmenjubiläum. Sie ist einer der größten Bauelementehersteller in Deutschland und liefert heute - von wenigen Ausnahmen abgesehen - sämtliche elektronischen Bauelemente für die Konsumelektronik und die professionelle Elektronik.
Die Geschichte des Unternehmens begann 1924 - ein Jahr nach der Einführung des Rundfunks in Deutschland - mit der Gründung einer Radioröhrenfabrik durch die Hamburger Röntgenfirma C. H. F. Müller. Damals entstanden viele Firmen, die Radioröhren herstellten; die Marke "Valvo" gehört zu den wenigen, die sich auf die Dauer erfolgreich behaupten konnten. 1927 schlossen sich C. H. F. Müller und die Radioröhrenfabrik den Philips-Unternehmen an, und die Röhrenfertigung
wurde auf ein geeignetes Gelände in Hamburg-Lokstedt verlagert. Schon in den 30er Jahren erweiterte man das Fertigungsprogramm auf Elektrolytkondensatoren,Lautsprecher,Hochohmwiderstände und Spezialröhren.
Der Ausbau zur heutigen umfassenden Valvo-Organisation setzte nach dem Kriege ein. In Hamburg-Lokstedt wurden größere und moderne Fabrikgebäude für die Herstellung von Elektronenröhren errichtet, in Hamburg-Stellingen begann man mit der Fertigung von Keramik-Kondensatoren, die dann in Langenhorn weiter ausgebaut wurde, und in Herborn gründete Philips ein später von Valvo übernommenes Werk für Elektrolyt- und Kunststoffolien-Kondensatoren.
1951 nahm Valvo die Produktion keramischer magnetischer Bauteile auf. Das für diese Fertigung in Hamburg eingerichtete neue Werk war damals schon das größte seiner Art in der Bundesrepublik. Mit der Ausstrahlung der ersten Fernsehversuchssendungen
1951 begann auch die Herstellung von Fernsehbildröhren. Aus diesen ersten Ansätzen heraus entstand die Bildröhrenfabrik Aachen, die heute das größte Farbbildröhrenwerk Europas ist. 1953 wurde mit der Einführung der Halbleitertechnik in Hamburg-Lokstedt ein entscheidender Schritt in eine neue Ära getan. Aus der Radioröhrenfabrik wurden die Röhren und Halbleiterwerke.
Die Vertriebsabteilungen haben seit 1955 ein eigenes Bürogebäude in Hamburg, das Valvo-Haus. Sie werden von sechs Zweigbüros in der Betreuung der professionellen Kunden unterstützt. Außerdem sind Vertriebsverträge mit 13 Distributoren abgeschlossen.
Zur Valvo-Organisation, in der mehr als 8000 Mitarbeiter beschäftigt sind, gehören heute die vier Werke: die Röhren- und Halbleiterwerke Hamburg, das Werk für elektronische Bauelemente Hamburg, die Bildröhrenfabrik Aachen und das Kondensatorenwerk Herborn. Diese großen Fertigungsstätten stellen ein erhebliches Produktionspotential dar; seine Bedeutung wird noch durch die Zusammenarbeit mit 120 Bauelementefabriken in 30 Ländern im Rahmen der Philips Unternehmen gesteigert, zu denen auch die Valvo GmbH als Tochter der Allgemeinen Deutschen Philips Industrie (Alldephi) gehört.
Valvo hat in seiner 50jährigen Geschichte viele Beiträge zur Entwicklung der elektronischen Technik in Deutschland geleistet. In der Radioröhrenfabrik Hamburg wurden unter anderem die ersten Acid-Röhren, die ersten deutschen Mehrgitterröhren sowie die ersten Röhrentypen für Wechselstromheizung serienmäßig gefertigt. In der Bildröhrentechnik sind mit der Rechteckröhre im normgerechten Seitenverhältnis, der 110°-Ablenkung sowie der Bildröhre, die ohne zusätzliche Schutzscheibe betrieben werden kann, bemerkenswerte Verbesserungen eingeführt worden. Heute hat sich die von Valvo angebotene "Europäische Fernsehtechnik", unter der man die Eurocolor-Bildröhren und die Ablenktechnik mit stranggewickelten Sattelspulen versteht, durchgesetzt. Die neueste Entwicklung ist die Bildröhre mit Schnellheizkatoden. Aus der großen Anzahl der Spezialröhrenentwicklungen sei hier nur das Hochleistungsklystron erwähnt, das heute in vielen UHF-Fernsehsendern des In-und Auslandes arbeitet.
Auch zur Halbleitertechnik konnte Valvo schon frühzeitig Entscheidendes beitragen. Zum Beispiel waren die 1954 herausgebrachten Typen OC 70, OC 71 die ersten in großer Stückzahl erhältlichen legierten Flächentransistoren auf dem deutschen Markt, und die diffusionslegierten POB-Transistoren (pushed out base) erweiterten ab 1959 den Anwendungsbereich des Transistors in das UKW-Gebiet. Ein markantes Beispiel für die Erfolge der modernen Halbleitertechnik sind die engtolerierten Abstimmdioden BB 105, mit denen die automatische Abstimmung beim UKW- und Fernsehempfang wirtschaftlich vertretbar gelöst werden konnte.
1967 entstanden in Hamburg integrierte Analogschaltungen. Sie gehörten zu den ersten derartigen in Europa gefertigten Produkten. Heute hat Valvo eine führende Stellung auf dem Gebiet der integrierten Schaltungen für Farbfernsehgeräte. Die zweite Generation dieser Schaltungen ist bereits herangereift. Sie trägt wesentlich zur Verringerung der Anzahl der Einzel-Bauelemente und der erforderlichen Abgleichvorgänge bei. Auch für Rundfunkempfänger werden zahlreiche im Rahmen eines fortschrittlichen Schaltungskonzeptes entwickelte integrierte Schaltungen angeboten.
An der Weiterentwicklung von weich und hartmagnetischen oxidkeramischen Werkstoffen ist in den letzten Jahrzehnten kontinuierlich gearbeitet worden; zum Beispiel wäre die 110°-Ablenktechnik ohne die hohe magnetische Qualität und Maßhaltigkeit moderner Jochringe aus "Ferroxcube 3C2" nicht möglich gewesen. Für Zeilentransformatoren und moderne Leistungsübertrager wurde der neue Werkstoff "Ferroxcube 3C8" eingeführt, und auf dem Gebiet der hartmagnetischen Werkstoffe stehen "Ferroxdure 380", "Ferroxdure 260" und "Ferroxdure 270" zur Verfügung.
Auf dieser breiten technischen Basis präsentiert sich die Valvo GmbH zum 50jährigen Firmenjubiläum als einer der bedeutendsten Zulieferer der elektronischen Geräte-Industrie mit einer großen Produktionskapazität und mit modernster technischer Ausrüstung - ein solides Fundament für den weiteren Ausbau der heute erreichten Position.

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