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 ! !
©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, October 18, 2023



The  SANYO CTP3209  is a 16 inches (37cm) portable  color television with 8 programs preselections for VHF and UHF channels.


The mechanical turret approach to television tuning has been used almost exclusively for the past over  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 invention relates to a tuning unit with bandswitch for high frequency receivers, especially radio and television receivers, having a potentiometer system for the control of capacity diodes, the said potentiometer system consisting of a plurality of parallel resistance paths along which wiper contacts can be driven by means of screw spindles disposed adjacent one another in a common insulating material housing in which a bandswitch formed of metal rods is associated with each tuning spindle.

In these tuning units, the working voltages of the capacity diodes in the tuning circuits are recorded once a precise tuning to the desired frequency has been performed. A potentiometer tuning system has great advantages over the formerly used channel selectors operating with mechanically adjustable capacitors (tuning condensers) or mechanically adjustable inductances (variometers), mainly because it is not required to have such great precision in its tuning mechanism.

Tuning units with bandswitches formed of variable resistances and combined with interlocking pushbuttons controlling the supply of recorded working voltages to capacity diodes are known. Channel selection is accomplished by depressing the knobs, and the tuning or fine tuning are performed by turning the knobs. The resistances serving as voltage dividers in these tuning units are combined into a component unit such that they are in the form of a ladderlike pattern on a common insulating plate forming the cover of the housing in which the tuning spindles and wiper contacts corresponding to the variable resistances are housed. The number of resistances corresponds to the number of channels or frequencies which are to be recorded. The wiper contact picks up a voltage which, when applied to the capacity diodes determines their capacitance and hence the frequency of the corresponding oscillating circuit. The adjustment of the wipers is performed by turning the tuning spindle coupled to the tuning knob. By the depression of a button the electrical connection between a contact rod and a tuning spindle is brought about and thus the selected voltage is applied to the capacity diodes. Since the push buttons release one another, it is possible simply by depressing another button to tune to a different receiving frequency or a different channel, as the case may be.

 Moreover, using this arrangement, the only indication--during adjustment--of which channel is selected is by station identification. The buttons have led lights each one when depressed.
 The set appeared on the market in 1979 offering as a first features like:
  • A chrominance signal processing circuit in a color television receiver realized in an Integrated circuit.

As well known, a composite color television signal comprises a luminance signal and a chrominance signal suppression modulated on a subcarrier in a line scanning period, apart from a horizontal and vertical synchronizing signals in a blanking period and a burst signal at the back porch of the horizontal synchronizing signal. In a typical color television receiver, a luminance signal, horizontal and vertical synchronizing signals, and a chrominance signal plus a burst signal are separated for the purpose of signal processing. For the purpose of processing a chrominance signal, a composite chrominance signal including a chrominance signal suppression modulated on a subcarrier and a burst signal is provided. On the other hand, a burst gate pulse is also provided to sample a burst signal in the composite chrominance signal. A subcarrier is locally generated responsive to the sampled burst signal and the original color signals are demodulated responsive to the chrominance signal and as a function of the locally generated subcarrier , which is adapted for implementation in an integrated circuit.

  •  A horizontal synchronizing circuit for use in a television receiver set comprises a horizontal AFC circuit provide a horizontal synchronizing circuit which is simple in structure and can easily be manufactured in an IC.
  • A light weight regulated power supply apparatus.

  •  A combination VHF-UHF tuner in which a variable capacitance element is so arranged as to serve as a tuning element for electrically selecting a desired channel while a mixer employed in a VHF tuner serves as an intermediate frequency amplifier when a UHF channel is tuned in.
    The abbreviation VHF and UHF used hereinabove and hereinbelow stands for very-high frequency and ultra-high frequency, respectively.
  •  An improved video/intercarrier sound detecting circuit in a television receiver. More specifically, the present invention relates to a video detecting circuit and an intercarrier sound signal generating circuit particularly suited for implementation in an integrated circuit in a television receiver. 

  •  A video detecting circuit and an intercarrier sound signal generating circuit suited for implementation in an integrated circuit for use in a television receiver
  • Telescopic antenna is present above cabinet.
  • All manual commands are front placed.
  • Front command for  AFC ON/OFF switch.If there are any stations transmitting at frequencies in the space between the frequency at which the receiver was originally set and the frequency at which the AFC/AFT lets go, the output will not be detected by the receiver because of this effect on the AFC/AFT signal. For this reason, especially in FM receiver sets, there is provided an AFC ON/OFF switch whereby the AFC can be manually disabled during tuning. However, the purpose of this switch is usually not understood by the user of the set, so that the AFC/AFT is very seldom manually disabled when the set is being tuned. Even if it were understood, as it is left to the user to manually disable the AFC/AFT, it is quite conceivable that the switch will never be used. If it is used, it is possible that the user will forget to enable the AFC/AFT once he has completed tuning, so that the receiver will be operating without benefit of the AFC/AFT circuit.      It is known to use Automatic Frequency Control (AFC) and Automatic Fine Tuning (AFT) circuits for maintaining the tuning of frequency of receivers such as FM receivers and television receivers lined to the frequency of a selected radio or television station. Although AFC/AFT is useful for maintaining the alignment of frequencies when the receiver has been tuned, the signals provided by the AFC/AFT could provide problems when attempting to tune to a different station or channel. Specifically, if the AFC/AFT signal is strong enough, then the AFC will "pull" the receiver to the frequency at which it was last set even though the tuning dial is being turned. The AFC/AFT will only "let go" after the distance between the originally set frequency and the tuning dial is sufficiently large to overcome the effect of the AFC/AFT signal. 
  •  Vertical frequency and Horizontal frequency, contrast  adjustment knobs are also present under the tuning lid front placed.
  • Features firstly a Toshiba CRT tube  particularly to black matrix screens for color television picture tubes employing slotted aperture masks and a process for fabricating such screens.   Manufacturers of cathode ray tubes of the color television picture tube type have at the time begun employing aperture masks having slotted apertures instead of the more conventional circular apertures in order to achieve greater electron beam transmission through the mask, since an array of slots in an aperture mask allows the mask geometrically to be fabricated with more total open area than the same size mask containing round or circular apertures. The slotted apertures are typically arranged in vertical columns on the mask, each column being comprised of a plurality of slotted apertures. Since more electrons can impinge on the phosphor regions of the screen in a tube of this type than of the circular aperture, mask type, a brighter picture results. Unlike the circularly-configured phosphor regions on the screen of a tube employing an aperture mask having circular apertures, however, the phosphor regions on the screen of a tube employing an aperture mask having slotted apertures are formed in a pattern of adjacent vertical stripes, typically with each stripe running continuously from the top of the screen to the bottom.

    Black matrix tubes  also becomed widely popular as of late, both in circular aperture mask tubes and slotted aperture mask tubes. As seen from the viewing side of the screen of circular aperture mask tubes, the black matrix material completely surrounds each circular phosphor dot, serving to improve image contrast by absorbing ambient light that might otherwise be reflected by the screen. Also as seen from the viewing side of the screen of slotted aperture mask tubes, each vertical phosphor stripe is separated from the adjacent vertical phosphor stripe by a stripe of black matrix material running from the bottom to the top of the screen.

    In fabricating screens for conventional slotted aperture mask tubes of the black matrix type, a photoresist material coated over the inside surface of a tube faceplate is exposed in a so-called lighthouse to actinic radiation in a pattern corresponding to the pattern of matrix openings ultimately to be formed on the screen. This radiation is transmitted through the slotted apertures in the mask before impinging on the photoresist material. The actinic light source used in this fabrication process is linearly-elongated in a direction parallel to the columns of slots in the aperture mask in order to permit the black matrix material to be formed with a pattern of vertically and horizontally-aligned, vertically-oriented slots extending between the top and bottom of the screen. The phosphor stripes are thereafter deposited so that phosphor of a predetermined color emission characteristic, respectively, is deposited on the faceplate through a predetermined slot, respectively. Three different phosphor materials are conventionally deposited in a horizontally-repetitive pattern.

  • And triple electron gun TOSHIBA UNITIZED Electron gun:
    An electron gun comprising a plurality of focusing grids spatially arranged along the path of an electron beam generated from a cathode and each bored with at least one opening for allowing the passage of the electron beam, wherein at least one of said plural focusing grids is formed of at least one electrode set at a grounding potential or a lower potential than a focusing voltage and at least one more electrode whose potential is defined by an electrostatic capacity; and a high voltage is produced to provide an electron lens, though enabling the electron lens to improve its performance without being obstructed by requirements associated with the construction of a picture tube.


 SANYO Electric Co., Ltd. (San'yō Denki Kabushiki-gaisha) (TYO: 6764, Pink Sheets: SANYY) is a major electronics company and member of the Fortune 500 whose headquarters is located in Moriguchi, Osaka prefecture, Japan. Sanyo targets the middle of the market and has over 230 Subsidiaries and Affiliates.

On December 21, 2009, Panasonic completed a 400 billion yen ($4.5 billion) acquisition of a 50.2% stake in Sanyo, making Sanyo a subsidiary of Panasonic.

 In July 2010, Panasonic announced to acquire the remaining shares of Sanyo.

Corporate culture

Sanyo utilizes an extensive socialization process for new employees, so that they will be acclimatized to Sanyo's corporate culture.

New employees take a five-month course during which they eat together and share company-provided sleeping accommodation. They learn everything from basic job requirements to company expectations for personal grooming and the appropriate way in which to address their coworkers and superiors.


Sanyo was founded when Toshio Iue (Iue Toshio, 1902–1969), the brother-in-law of Konosuke Matsushita and also a former Matsushita employee, was lent an unused Matsushita plant in 1947 and used it to make bicycle generator lamps. Sanyo was incorporated in 1950; in 1952 it made Japan's first plastic radio and in 1954 Japan's first pulsator-type washing machine.

 The company's name means three oceans in Japanese, referring to the founder's ambition to sell their products worldwide, across the Atlantic, Pacific and Indian oceans.

Technologically Sanyo has had good ties with Sony, supporting the Betamax video format from invention until the mid 1980s (the best selling video recorder in the UK in 1983 was the Sanyo VTC5000), and later being an early adopter of the highly successful Video8 camcorder format. More recently, though, Sanyo decided against supporting Sony's format, the Blu-ray Disc, and instead gave its backing to Toshiba's HD DVD. This was ultimately unsuccessful, however, as Sony's Blu-ray triumphed.

In North America, Sanyo manufactures CDMA cellular phones exclusively for Sprint-Nextel corporation's Sprint PCS brand in the United States, and for Bell Mobility in Canada.

The 2004 Chūetsu earthquake severely damaged Sanyo's semiconductor plant and as a result Sanyo recorded a huge financial loss for that year. The 2005 fiscal year financial results saw a 205 billion yen net income loss. The same year the company announced a restructuring plan called the Sanyo Evolution Project, launching a new corporate vision to make the corporation into an environmental company, plowing investment into strong products like rechargeable batteries, solar photovoltaics, air conditioning, hybrid car batteries and key consumer electronics such as the Xacti camera, projectors and mobile phones.

Sanyo's 3-year restructuring project

Sanyo posted signs of recovery after the announcement of positive operating income of 2.6 billion yen. Sanyo remains the world number one producer of rechargeable batteries. Recent product innovations in this area include the Eneloop Low self-discharge NiMH battery, a "hybrid" rechargeable NiMH (Nickel-metal hydride battery) which, unlike typical NiMH cells, can be used from-the-package without an initial recharge cycle and retain a charge significantly longer than batteries using standard NiMH battery design. The Eneloop line competes against similar products such as Rayovac's "Hybrid Rechargeable" line.

In December 2005 Sanyo had their new Super Sharp Technology patented.

In January 2006 Sanyo received a massive capital injection from Goldman Sachs, Sumitomo Mitsui Banking Corporation and Daiwa Securities which resulted in five members of the banks represented joining the nine-person Board of Directors.

On 24 November 2006, Sanyo announced heavy losses and job cuts.

Tomoyo Nonaka, a former NHK anchorwoman who was appointed Chairman of the company, stepped down in March 2007. The President, Toshimasa Iue, also stepped down in April of that year; Seiichiro Sano was appointed to head the company effective April 2007. In October 2007, Sanyo cancelled a 110 billion yen ($942 million) sale of its semiconducter business, blaming the global credit crisis for the decision and stating that after exploring its other options, it had decided to keep the business and develop it as part of its portfolio.

On April 1, 2008, they merged their cell phone division with Kyocera.

On November 2, 2008, Sanyo and Panasonic announced that they have agreed on the main points of a proposed buyout that would make Sanyo a subsidiary of Panasonic  and a formal announcement of the acquisition was made on Sanyo's web site on December 19, 2008.

They became a subsidiary of Panasonic on December 21, 2009.

On July 15, 2010 Sanyo agreed to sell its semiconductor operations to ON Semiconductor for $366 million to be completed before the end of 2010.

On July 29. 2010 Panasonic reached an agreement to acquire the remaining shares of Panasonic Electric Works and Sanyo shares for $9.4 billion.

By April 2012, parent company Panasonic plans to terminate the Sanyo brand, however it will be remain on some of the products where the Sanyo brand still hold value to consumers.

Strange how situations change. It seems not so long ago that Japan and its industries, particularly electronics, could do no wrong. They taught us how to make cars and TV sets properly. They invested heavily and came up with a seem- ingly endless stream of desirable, innova- tive products. Both outsiders and insiders could see no end to this success story. We were told, by more than one leading Japanese electronics industrialist, that the 21st century would be the Japanese one, when Japan became predominant industri- ally and culturally. For the last couple of years the situation has been somewhat different. Japan is still the world's second largest economy, but the previous confidence has gone. The econo- my has stalled, and doesn't look like getting going again for some time. Profitability has become appalling, and the talk now is all of restructuring and job losses. Sony has announced that some 17,000 jobs will be lost worldwide, ten per cent of its workforce, while fifteen of its seventy factories are to be closed. Mighty Hitachi, whose activities span a much wider field and whose turnover is equivalent to over two per cent of Japan's gross domestic product, has launched a detailed review of its businesses. 6,500 of its 66,000 parent company employees are to be made redun- dant by March next year. On a consolidat- ed basis Hitachi is Japan's largest employ- er, with 330,000 staff. Businesses are to be dropped or reorganised. The story from Mitsubishi Electric is similar: there is to be a "sweeping restructuring of its portfolio of businesses". In the UK, the latest manifes- tation of this is the closure of Mitsubishi's VCR plant at Livingston. 14,500 jobs will go (8,400 in Japan) at Mitsubishi Electric, nearly ten per cent of the workforce. Other manufacturers who have announced poor results and restructuring recently include NEC, Matsushita, Sharp and Toshiba. It's all a long way since the time when, it seemed, all the Japanese had to do was to get the product right and produce more and more of it. Some of this was foreseeable. Markets reach saturation point; new products are not always a runaway success; if investment in new plant is excessive you end up with too much capacity; and so on. Then there is the fact that Japan is not isolated from econom- ic problems elsewhere: no economy that is heavily dependent on exports can be. But there are also more specific Japanese prob- lems. The banking system is beset by non- performing loans that Japanese bankers are reluctant to write off. The bubble economy of a few years ago, when asset values rose to unrealistic levels, collapsed. This is part of the cause of the banking system difficul- ties. Then there is the practice of cross - ownership, with firms owning substantial stakes in each other. This can work nicely when everything is doing well: when reces- sion looms, it aggravates the problems. Japan's unemployment rate hit a new high of 4.8 per cent (3.39m) in March, part- ly because of the corporate sector restructur- ing. Japanese industrialists hope to improve their profitability in the second half of the year, and will be helped by improved condi- tions in SE Asia. But it will be hard going, particularly to improve domestic market conditions. The Japanese have always had a high propensity to save. This increases when the economic climate is poor, with unemployment a threat. Right now Japanese consumers are saving rather than buying. No one seems to know how to alter their behaviour. There is also a demographic problem: the Japanese population is ageing. Japanese interest rates are negligible. So borrowing is not a problem. But conversely all those savings are bringing in little income. In the Western world interest rate changes often have a considerable impact on the economy. This economic tool is not available when interest rates are negligible. The Japanese have been advised to get their banking system sorted out, but that's not the sort of thing that can be done overnight. Right now the best opportunity for Japan seems to be to export its way out of its dif- ficulties, something that shouldn't be too difficult once worldwide expansion has resumed. But the high value of the yen is a drawback. From the economic viewpoint it's an extremely interesting situation, one in which the laws of economics have little to offer. This could be because such laws are, basically, descriptive rather than prescrip- tive. In the real world you can't always ini- tiate economic activity through monetary or fiscal means. Some commentators have gone so far as to suggest that the Japanese government should spend, spend, spend and print money to kick-start the economy. This is a dangerous course that can go badly wrong. It has already been tried by the Japanese government to a limited extent, with similarly limited success. The one thing that we do know is that economies are not stable. Change is ever present in one form or another. The prob- lem lies in trying to control it. This is all rather humbling, and certainly something of a comeuppance for the rather arrogant Japanese industrialists who had talked about the century of Japanese economic hegemony.

See also:

List of digital camera brands
Mitsubishi Heavy Industries
Panasonic Wild Knights
Primearth EV Energy Co

Some References:

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" has been integrated into".

"Panasonic Electric Works - Panasonic" (PDF). Archived from the original (PDF) on 14 December 2011. Retrieved 19 February 2015.

"Panasonic buying Sanyo and other unit for $9.4 billion". Retrieved 19 February 2015.

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Rohit T. K. in Bangalore and James B. Kelleher (13 August 2013). "Whirlpool buys 51 percent stake in China appliance maker". Reuters.

"404 Error - Page Not Found". Retrieved 19 April 2018.

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"Sanyo completes construction of lithium-ion battery facility in Japan" (Press release). Sanyo via Autoblog Green. 2010-08-10. Retrieved 2010-08-10.

BioAge Media. "Green Car Congress: Sanyo to More than Double NiMH Battery Production Based on Hybrid Demand".

"Sanyo India Launch". Financial Express. Retrieved 11 August 2016.

"Sanyo Smart TV Launch". Amazon Press Release. Retrieved 10 July 2017.

"Sanyo NXT Series". Economic Times. Retrieved 9 August 2017.

"Sanyo 4K Smart Series". Digit. Retrieved 6 December 2017.

"Sanyo EESL AC". Economic Times. Retrieved 24 May 2017.

"Sanyo LCD". TopTenREVIEWS. Retrieved 19 February 2015.

"Sanyo FVF5044". PCMAG. Retrieved 19 February 2015.

"Sanyo introduces 65-inch LCD TV for $998". CNET. CBS Interactive. Retrieved 19 February 2015.