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 ! !
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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 !

Thursday, January 20, 2011

ITT NOKIA 7181 PIP DIGIVISION BLACK - LINE / IFB-681 CHASSIS DIGI BE-2 PIP BLACKPLANIGON 5861 69 49 SOUND PROCESSING UNIT 5827 02 38







ITT NOKIA 7181 PIP DIGIVISION BLACK - LINE / IFB-681 CHASSIS DIGI BE-2 PIP BLACKPLANIGON 5861 69 49 SOUND PROCESSING UNIT Modular Parts. Digital Sound Modul: SEL Stereo Modul DIGI. B
Viewing of Digital Audio - Sound Processing: ADC 2310 (ITT ADC2310) and APU 2470 (ITT APU2470)













































Stereo Modul DIGI. B

Plug connectors ST 23 and ST 25 constitute the AF signal inputs
for the TV I and TV ll signals coming from the RF module. Each
of these signals is then passed (via 2 impedance converters
and 1 notch filter for suppressing interference frequency
components) to Pins 4 and 5 ofthe audio signal converter ADC
2310 E, IC 3101.
The stereo pilot carrier is selectively decoupled from sound
channel TV ll and fed separately to Pin 8 for recognition of the
station operating mode.
The digitized output signals are then available as pulse-rate-
modulated signals PDM I and PDM ll at Pins 10 and 11. Digital
signal processing is then performed completely in APU 2470,
the audio processor IC 3201, to which of course all control
functions controlled via the IM Bus belong. At IC outputs 22 and
23, the processed signals are outputted as pulse-width-
modulated information, so that they can be reconverted into
their original analog form by simple integration (RC element).
The downstream lC’s TDA 2040 H (3401/3501) supply power
amplification for feed to the loudspeakers. A second pair of
analog outputs, Pins 19, 20 ofthe APU, followed by an
integrated amplifier stage, IC 3301 , TDA 2822 M, serves for
connection of earphones or a stereo system via cinch sockets.
This output is likewise controllable, and also suitable for the
listening to the alternative sound channel in dual-channel sound
mode. Pins 21 and 24 at ADC 2310 E are available for coupling
a second dual-channel analog sound source. The signals
concerned come from the SCART socket (PPT), and in sets with
picture-in-picture function are passed via the PIP decoder. In
the opposite direction, the ADC 2310 E supplies at Pins 22 and
23 analog output signals to the SCART socket, e.g. as required
for recording audio signals. All switch-over functions necessary
in this area are executed inside the IC and controlled via the IM
Bus. Detection of the station transmission mode (mono, stereo,
dual-sound) is performed in the lC’s in exactly the same way as
the corresponding switch-over to the operating mode being
transmitted. A muting stage in each of the two audio channels
(T 3401 and T 3501) provides an audio muting function by short-
circuiting the signal input Pin 1 at the power output stage lC’s.
This function can be controlled in two different ways:
1. Via ST 33 at the moment when the set is switched on, in
order to suppress the switch-on click.
2. From Pin 16 of ADC 2310 E, e.g. for noise suppression,
when no TV signal is being received.
ln the first case, the L signal, which is passed as a switch-on
signal from Pin 5 of the CCU via R 1505 to ST 33 of Stereo
Module B, and thus via R 3511 to the base of T 3510, will switch
the transistor to on-state and thus connect the muting line to
12 V. Since in this case the two switching transistors T 4301 and
T 3501 also become conducting, the signal inputs to the audio
output stages are then short-circuited. The second muting
branch from Pin 16 of ADC 2310 E is software-controlled, and
receives the switch-off information from the CCU via the IM
Bus.
The stereo module also houses the SCART socket (PPT).

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