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 Obsolete 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 ! !
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©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 !
All posts are presented here for informative, historical and educative purposes as applicable within Fair Use.


Wednesday, June 6, 2012

PLANET MOD. 602 YEAR 1970.




The PLANET MOD. 602 is a wooden cabinet 19 inches B/W television with 4 programs mechanic keyboard tuning system...............tubes based tv........................ and semiconductors tuner unit developed.

This invention relates to a keyboard for presetting the tuning of a television receiver receiving apparatus, comprising a tuning setting member manually operable for setting up the tuning for the reception of a plurality of transmitters and a group of depressible keys. More particularly, the invention relates to a keyboard for a television receiver receiving apparatus to be used at home domestically, known as television receiver, wherein each key is associated with a tuning storing element adapted to cooperate with the setting member in such a manner that in a first condition of the key said element is conditioned to store the tuning preset by said member and in a second condition of the key the element automatically sets up said member according to the stored tuning.
The main object of the invention is to provide a keyboard for a television receiver receiving apparatus, wherein the tuning setting member cooperates directly with the tuning storing element, whereby the tuning is memorized with a very high precision, while requiring a reduced space. To this end, according to the invention, each tuning storing element includes a wedge pivotally mounted with respect to the associated key, the tuning setting member being provided, in correspondence with each one of said elements, with a pair of converging tapered profiles adapted to cooperate directly with the associated wedge.  Such keyboards for radio and television sets are per se known. They comprise keys of variable lengths, fitted with cams, which can be locked in position, each position corresponding to the tuning of the receiver to a given frequency, and control means, which, upon the actuation of one of the keys, transmit this position to the tuning circuit of the receiver. However, the known keyboards of this type occupy a considerable space, which forms a disadvantage where, as it is the case with motorcar dashboards, space is at a premium and therefore the opening or receptacle allotted for the installation of the receiver therein is of necessity small.

Incorporated antennas for both VHF UHF channels are fitted rear side.

Chassis was hybrid TUBES type even with a full steel chassis structure.


The B/W Tubes Television set was powered with a External Voltage stabiliser unit (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 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.
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
imrorjiiced 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.

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 ener-
gized 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 and 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 includcd 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.

TRANS CONTINENTS / OCEANIC / PRANDONI was an Italian manufacturer of radio and after of televison sets.

It was also the owner of brands like Trans Continents and Nuclear radio TV or simply Nuclear.

"Prandoni S.p.A." was founded by Dario Prandoni. Finally his son Giorgio Prandoni sold the company to the French "Thomson".

In 1998 Francesco Juilland and Giorgio Prandoni co-founded "Mediacube USA, Inc.", a film production company and a visual effects service provider in USA, Europe and in Italy.
a film production company and a visual effects service provider in USA, Europe and in Italy.

Giorgio Prandoni is a leading figure and heir to the most prestigious industrialist dynasty in the design and manufacture of radio equipment and multi standard television sets in Italy. (His father was Dario Prandoni the luminary owner of Prandoni S.p.A. one of Europe's most highly regarded electronic companies;


Dario Prandoni formed the basis of the Prandoni Empire and Giorgio Prandoni sells the company in France to Thomson with a big one deal). During his tenure from 1998 to February 2002 as Mediacube's CEO Francesco Juilland has created important joint venture between Mediacube USA, Inc. and important European, American and Canadian companies. He also brokered the acquisition of a share of Minerva Pictures (Italy) they own a library of more than 1,500 titles of which 850 are for worldwide rights in perpetuity. The titles include classics works by Pasolini, Germi, Bellocchio, Godard, Fellini, Antonioni and others. Most recently in 2000, Francesco Juilland was elected in the Board of Directors of Ionic WW Studios, a fully digital Hollywood studio organized and financed by Mediacube as Major Investor together with Giorgio Prandoni and Javier Rodriguez, Spanish businessman and scion of an important and conservative Family of Spain full of history and tradition and thank to the greenlight of a guardian angel like the economist Mr. Diego Colombo, chairman of the Colombo Group with offices in Switzerland and around the world and longtime serious advisor of the Juilland family office. Francesco Juilland is in the Board of Directors with the man that he considers his American mentor Mike Medavoy (producer, former chairman of Tristar Pictures and a legendary "Hollywood industry hero" as Fox News channel calls him, many times Oscars winner, his movies including the masterpieces Apocalypse Now, Philadelphia, Dance with wolves, Who flew over the Cuckoo's nest, Annie Hall, Platoon, Rocky, the Sting, Silence of the lambs, Amadeus, The Terminator, Sleepless in Seattle) and Norman Pattiz (called from "USA Today" and "LA Times" The Ted Turner of the radio) and Arnold Messer (president of Phoenix Pictures, company producer of Larry Flint, The thin red line, U-Turn, The 6th Day, Basic, Holes, Stealth, All the King's men), together with David Hayden and Gigi Pritzker (film producer with Deborah del Prete of "the Wedding Planner" with Jennifer Lopez)


Further Readings and Notes

^ Radiogrammofono PDRS 9 (PDF), in Selezione Radio, Anno I, nº 2, Febbraio 1950.
^ Brevetto per marchio d'impresa nr. 05875 del 1 febbraio 1952.
^ Baiocato, NRC 333 Radio Nuclear Radio Corporation; Cassano D'Adda MI,, su www.radiomuseum.org. URL consultato il 16 febbraio 2018.
^ Carlo Grimaldi, Tutto a transitors (PDF), in Informazione industriale, 1967.
^ Guidi, Stereo-Matic Hi-Fi 75 R-Player Prandoni SPA; TREVIGLIO BG, b, su www.radiomuseum.org. URL consultato il 16 febbraio 2018.
^ La Prandoni ritorna in attivo (PDF), in Selezione di tecnica Radio TV, Settembre 1982, p. 6.

External links for further information


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