INDESIT TC26SIL YEAR 1979.

The INDESIT TC26SIL is a 26 inches color television with 16 programs and VST Tunign search system.

Furthermore it has a programmable very sophisiticated realtime digital clock which allows to start the tellye at a prefixed time on a prefixed program,Thereafter a digital control clock automatically selects the pre-entered information at the appropriate times and provides a control signal which may be used to automatically select the identified channels to the exclusion of all others. Alternatively, the signal may be used to exclude the selected channel from selection manually.

Was first and last Indesit models series using the 30AX SYSTEM CRT TUBE.The 30AX system, which Philips introduced in 1979, is an important landmark in the development of colour picture systems. With previous systems the assembly technician had to workthrough a large number of complicated setting-up procedures whenever he fitted a television picture tube with aset of coils for deflecting the electron beams. These procedures were necessary to ensure that the beams for the three colours would converge at thescreen for every deflection. They are no longer necessary with the 30AX system: for a given screen format any deflection unit can be combined  with any tube to form a single 'dynamically convergent' unit. A colour-television receiver can thus be assembled from its components almost as easily as a monochrome receiver. The colour picture tube of the PHILIPS 30AX system displays a noticeably sharper picture over the entire screen surface. This will be particularly noticeable when data transmissions such as Viewdata and Teletext are displayed. This has been achieved by a reduction in the size of the beam spot by about 30%. Absence of coma and the retention of the 36.5 mm neck diameter have both contributed to increased picture sharpness. Coma has been eliminated by means of corrective field shapers embedded in the deflection coils which are sectionally wound saddle types. The new deflection unit has no rear flanges. enabling uniform self-convergence to be obtained for all screen sizes. without special corrections, adjustments, or tolerance compensations. Horizontal raster distortion is reduced and no vertical correction is required. One of the inventions in 30AX is an internal magnetic correction system which obviates static convergence and colour purity errors. This enables the usual multiple unit to be dispensed with. together with the need for its adjustment !  New techniques have been employed to achieve close tolerance construction of the glass envelope. In addition, the 30AX picture tube incorporates two features whereby it can be accurately adjusted during the last stages of manufacture. One is the internal magnetic correction system. The other is an array of bosses on the cone that establish a precise reference for the axial purity positioning of the deflection unit on the tube axis and for raster orientation. During its manufacture, each deflection unit is individually adjusted for optimum convergence. The coil carrier also incorporates reference bosses that co-operate with those on the cone of the tube. ' Since every picture tube and every deflection unit is individually pre-aligned, any deflection unit automatically matches with any picture tube of the appropriate size. The deflection unit has only to be pushed onto the neck of the tube unit it seats. Once the reference bosses are engaged, the combination is accurately aligned and requires no adjustment for convergence, colour purity or raster orientation. With no multiple unit and a flangeless deflection unit, there is more space in the receiver cabinet. Higher deflection sensitivity means that less current is consumed, and consequently less heat is produced. This increases the reliability of the TV receiver again. 30AX means simple assembly. Any picture tube is compatible with any deflection unit of the appropriate size and is automatically self-aligning as well as being self-convergent.
Now that the new Philips/Mullard 30AX tube has put in an appearance, some details can be filled in. The new tube has been developed from the 20AX, which has been in production since 1974, but brings with it several important advances. First, no dynamic convergence, static convergence, purity or raster correction adjustments are necessary. Secondly the new yoke design gives improved deflection sensitivity, a straight NS raster, and reduced EW raster distortion. Due to the close mechanical tolerances and the inclusion of positioning bosses on the tube bowl, the tube and yoke can be aligned simply by being pushed together - any 30AX yoke will automatically match any 30AX tube of the appropriate size. Thirdly the newly designed electron gun gives a sharper spot, with greater focus uniformity over the screen area. An internal magnetic ring is used to give correct purity and static beam convergence, in place of the multipole unit used in previous in -line gun tube designs. This results in a strikingly compact assembly. The automatic yoke/tube alignment does away with the need for preset mechanical tilt and shift adjustments which, Philips point out, correct one error by introducing another. The new tube is being produced in the 26, 22 and 20in. screen sizes. The power consumption of a set fitted with the 30AX is typicaly 100W compared to 120W with the 20AX system, at 1.2mA beam current and with an e.h.t. of 25kV. This compares with 88W for a set fitted with a 90° narrow -neck tube and hybrid yoke, under the same conditions.
The well-known 20AX features of HI-Bri, Soft-Flash and Quick-vision are maintained in the new 30AX systern.  In their work on the design of deflection coils in the last few years the developers have expanded  the magnetic deflectionfields into 'multipoles', This approach has improved the understanding  of the relations between coil and field and between field and deflection to such an extent that  designing deflection units is now more like playing a difficult but fascinating game of chess than  carrying out the obscure computing procedure once necessary.

- Was last color television from INDESIT in 1979 before closing Tv sets productions.

- Was first and last model from INDESIT featuring a modular tv color chassis design.

- Was first and last model from INDESIT with Incorporated digital Clock.

- Was last color television from INDESIT with Infra red remote control system and a  circuit device for a television receiver having a tuner device with a tuner memory operable to control the tuning of the receiver to stations selected by a user, in which there are further provided means for automatically adjusting the controls of the receiver whenever the station to which the receiver is tuned is changed, this means comprising one or a plurality of random access memories addressed by signals from the tuner memory which are characteristic of each individual station, the output signal from the RAM, (or the enabled RAM if there are a plurality of them) representing the contents thereof at the location addressed, is fed to a digital-to-analogue converter which produces an output voltage signal for adjusting the associated receiver control; changes to the content of the RAM can be made by means of an associated counter controlled to count up or down by a push button panel. 

The  invention relates to a circuit device for effecting and memorising adjustments to the setting of the controls of a television signal receiver, especially of a colour television receiver; such controls as the volume, brightness, contrast, colour saturation etc. must often be adjusted when changing stations in order to obtain optimum setting of the controls for each station to which the receiver can be tuned in order to account for differences in the signals from each station. Conventionally, television controls are mechanical control systems using potentiometers inserted into the path of the electric signal to be controlled (direct control) or else supplying a D.C. voltage by means of which electronic voltage control is effected (indirect control).
Such mechanical systems have considerable disadvantages, not only from the point of view of durability, since the potentiometers, being mechanical, are subject to wear, but also from that of performance due to non-linearity and discontinuity in the response. Moreover, such mechanical systems are not easily adaptable to the use of remote controls.
For this reason wholly electronic control systems, which operate indirectly, have been recently introduced. These usually comprise a series of counters which are able to count both up and down, each followed by a suitable digital-to-analogue converter. By energising a counter, selected by operation of one of a number of pairs of push buttons, it is possible to increase or reduce the content of this counter and thereby to cause the corresponding control voltage to vary: such variation is discontinuous, but has sufficient resolution for most purposes.
This latter system eliminates many of the disadvantages of the conventional mechanical controls but it is still not wholly satisfactory because, since each station to which a receiver can be tuned usually has modulation characteristics which are different from those of the others, with every change of station it is necessary to readjust, systematically, the controls of the receiver, that is the volume, brightness, contrast (and colour controls in the case of colour transmission).
In fact at present it is possible in many places to receive a large number of transmitter stations (in some cases more than twenty), and hence television receivers have to allow changeover from one station to another with the greatest simplicity. The technical problem which this invention seeks to solve is the provision of a circuit device which is able to effect adjustment of the controls of a receiver upon changes in the tuning thereof to receive signals from different transmitters, which does not suffer from the disadvantages of known systems.

- Horizontal Beam Deflection  and high voltage generating circuits realized with Thyristors circuits.

The massive demand for colour television receivers in Europe/Germany in the 70's  brought about an influx of sets from the continent. Many of these use the thin -neck (29mm) type of 110° shadowmask tube and the Philips 20AX CRT Tube, plus the already Delta Gun CRT . 

Scanning of these tubes is accomplished by means of a toroidally wound deflection yoke (conventional 90° and thick -neck 110° tubes operate with saddle -wound deflection coils). The inductance of a toroidal yoke is very much less than that of a saddle -wound yoke, thus higher scan currents are required. The deflection current necessary for the line scan is about 12A peak -to -peak. This could be provided by a transistor line output stage but a current step-up transformer, which is bulky and both difficult and costly to manufacture, would be required. 

An entirely different approach, pioneered by RCA in America and developed by them and by ITT (SEL) in Germany, is the thyristor line output stage. In this system the scanning current is provided via two thyristors and two switching diodes which due to their characteristics can supply the deflection yoke without a step-up transformer (a small transformer is still required to obtain the input voltage pulse for the e.h.t. tripler). The purpose of this article is to explain the basic operation of such circuits. The thyristor line output circuit offers high reliability since all switching occurs at zero current level. C.R.T. flashovers, which can produce high current surges (up to 60A), have no detrimental effects on the switching diodes or thyristors since the forward voltage drop across these devices is small and the duration of the current pulses short. If a surge limiting resistor is pro- vided in the tube's final anode circuit the peak voltages produced by flashovers seldom exceed the normal repetitive circuit voltages by more than 50-100V. This is well within the device ratings.  It's a very good system to use where the line scan coils require large peak currents with only a moderate flyback voltage  an intrinsic characteristic of toroidally wound deflection coils. The basic thyristor line output stage arrangement used in all these chassis is shown in Fig. 1
it was originally devised by RCA. Many sets fitted with 110°, narrow -neck delta -gun tubes used a thyristor line output stage - for example those in the Grundig and Saba ranges and the Finlux Peacock , Indesit, Siemens, Salora, Metz, Nordmende, Blaupunkt, ITT, Seleco, REX, Mivar, Emerson, Brionvega, Loewe, Galaxi, Stern, Zanussi, Wega, Philco. The circuit continued to find favour in earlier chassis designed for use with in -line gun tubes, examples being found in the Grundig and Korting ranges - also,  Indesit, Siemens, Salora, Metz, Nordmende, Blaupunkt, ITT, Seleco, REX, Mivar, Emerson, Brionvega, Loewe, Galaxi, Stern, Zanussi, Wega, Philco the Rediffusion Mk. III chassis. Deflection currents of up to 13A peak -to -peak are commonly encountered with 110° tubes, with a flyback voltage of only some 600V peak  to peak. The total energy requirement is of the order of 6mJ, which is 50 per cent higher than modern 110° tubes of the 30AX and S4 variety with their saddle -wound line scan coils.   The only problem with this type of circuit is the large amount of energy that shuttles back and forth at line frequency. This places a heavy stress on certain components. Circuit losses produce quite high temperatures, which are concentrated at certain points, in particular the commutating combi coil. This leads to deterioration of the soldered joints around the coil, a common cause of failure. This can have a cumulative effect, a high resistance joint increasing the local heating until the joint becomes well and truly dry -a classic symptom with some Grundig / Emerson sets. The wound components themselves can be a source of trouble, due to losses - particularly the combi coil and the regulating transductor. Later chassis are less prone to this sort of thing, partly because of the use of later generation, higher efficiency yokes but mainly due to more generous and better design of the wound components. The ideal dielectric for use in the tuning capacitors is polypropylene (either metalised or film). It's a truly won- derful dielectric - very stable, with very small losses, and capable of operation at high frequencies and elevated temperatures. It's also nowadays reasonably inexpensive. Unfortunately many earlier chassis of this type used polyester capacitors, and it's no surprise that they were inclined to give up. When replacing the tuning capacitors in a thyristor line output stage it's essential to use polypropylene types -a good range of axial components with values ranging from 0.001µF to 047µF is available from RS Components, enabling even non-standard values to be made up from an appropriate combination. Using polypropylene capacitors in place of polyester ones will not only ensure capacitor reliability but will also lower the stress on other components by reducing the circuit losses (and hence power consumption).
       Numerous circuit designs for completely transistorized television receivers either have been incorporated in commercially available receivers or have been described in detail in various technical publications. One of the most troublesome areas in such transistor receivers, from the point of View of reliability and economy, lies in the horizontal deflection circuits.
       As an attempt to avoid the voltage and current limitations of transistor deflection circuits, a number of circuits have been proposed utilizing the silicon controlled rectifier (SCR), a semiconductor device capable of handling substantially higher currents and voltages than transistors.
       The circuit utilizes two bi-directionally conductive switching means which serve respectively as trace and commutating switches. Particularly, each of the switching means comprises the parallel combination of a silicon controlled rectifier (SCR) and a diode. The commutating switch is triggered on shortly before the desired beginning of retrace and, in conjunction with a resonant commutating circuit having an inductor and two capacitors, serves to turn off the trace switch to initiate retrace. The commutating circuit is also arranged to turn oft the commutating SCR before the end of retrace. 



- The remote was fittable in a front compartment after use.


- This model was replacing the INDESIT TC26SI.

THIS HERE IN COLLECTION IS AN ORIGINAL INDESIT NONE  (TURIN)  MADE.

It's an interesting fact that the cathode ray tube, which was amongst the very earliest thermionic devices, seems likely to be amongst the very last in everyday use. Receiving valves are largely things of the past, while timebase valves now belong in the service department. The development of the CRT continues apace however, and one cannot see any likelihood of its demise. Solid-state displays have been talked about, and demonstrated, but anything likely to compete on cost and performance grounds with the modern colour tube seems forever to be "at least ten years away". The early experiments with cathode-ray tubes were carried out in the last century. By the turn of the century, crude CRTs could be made. An early CRT, the Wehnelt hot cathode tube of 1905, is on display at the IBA's Television Gallery. By 1910, Alexander Campbell -Swinton had come to appreciate the possibilities of the CRT as a pick-up and display device for television, and put forward suggestions for such a TV system. It was a while however before the type of tube we know today appeared. The tubes of the 1910-30 era were gas focused devices (relying on residual gas to focus the beam), the vacuum pumps of the period producing only a poor vacuum. By the time of the start of the BBC's TV service in 1936 however the modern type of tube had arrived. It was a triode device with external focusing and a deflection angle of around 50°. The usual sizes were 9 and 12in., and the e.h.t. was about 5kV. Post-war developments during the 1950s saw some important innovations. The deflection angle went to 70°, then 90°, then 110°; multi -electrode gun assemblies with electrostatic focusing were introduced; the e.h.t rose to 20kV; improved phosphors became available; and the advent of the aluminised screen considerably improved the brightness and contrast (by reflecting all the phosphor light emission forwards) while overcoming the problem of ion bombardment. Meanwhile, colour had come. The principle of the shadowmask tube had been suggested in the 1930s, but development (by RCA) had to wait until proposals for an acceptable, practical colour broadcasting system were put forward. A regular colour service was started in the USA in 1954, and the receivers were fitted with 21in. shadowmask tubes. Early developments included the use of improved phosphors, but essentially the same tube confronted us with the advent of colour transmissions in Europe in 1967. As you all know, it had three guns mounted in a triangular formation, a dot-phosphor screen, a massive convergence system in two sections (radial and lateral), plus purity magnets and a large metal shield on which the degaussing coils hung. It also needed both NS and EW raster correction circuitry. The first versions in Europe had a deflection angle of 90° : when the 110° version came along in the early 1970s the convergence and raster correction circuitry required were even more complex, but the degaussing shield had disappeared inside the tube. At much the same time however the first major breakthrough in large screen tube design occurred (we put it that way because the innovating Sony Trinitron was at the time mainly a small screen tube) - the RCA PIL tube with its in -line guns, phosphor -striped screen, and slotted shadowmask. The design of the yoke to provide self -convergence in conjunction with the in -line gun arrangement meant that no dynamic convergence system was required, while some simple manufacturer preset magnets provided static convergence and purity correction. Sets using this tube first appeared in Europe in 1975, and meanwhile the PHILIPS 20AX system had come along. Over the last few years the pace of development has quickened to a striking extent. We've had quick warm-up cathodes, the hi-bri technology which increases the shadow mask's transparency, the contoured line screen, the super -arch mask, pigmented phosphors, soft flash to reduce flashover damage, redesigned focus arrangements, and increased use of an earlier development, the black -stripe screen. The latest generation of tubes require no NS raster correction circuitry, which is all part of a parallel development in yoke technology, while the need for EW correction is also in the process of being designed out. With the new Philips 30AX tube, the static convergence and purity system disappear inside the tube in the form of a small internal magnetic ring. It's all a long way from Wehnelt's hot -cathode tube of 1905. The latest colour tubes are compact and have all the various correction arrangements required built in. They are amazing feats of precision engineering, and a solid-state alternative seems as far away as ever. Is there any farther to go along this path? Well, single -gun colour tubes using the beam indexing principle are now understood to be a practical proposition for small screen tubes, so we can't be too sure.

INDESIT (SPIREA) was originary from Orbassano Near TORINO In Italy and indeed the Product here shown comes from there.

It was a very big industry conglomerate present in all European lands even In Norvay.

IT was fabricating domestic appliances like Washing machines (INDESIT K5) and dish washers and even fridges (almost lasting forever).

In the 70's they started producing tellyes and radios for cheap market but good products.

As example of the television sets produced by INDESIT  here an example of portable B/W tv set.
 and here an example of INDESIT Color tv set.

And not last an INDESIT B/W tv set with tubes chassis.

Here you can see an INDESIT 2 doors Refrigerator from the same era of time like the TV above shown.

INDESIT has a very heavy controversed history which is made of high loss of work places for people, financial disasters, loss of market, closing of production location and finally a complete destruction of one of the bigger Italian industry on European level.

It was then brand name aquired by Merloni Elettrodomestici known as Ariston the reconverted to Indesit company......................

INDESIT INDUSTRY (Photography showing original INDESIT factory near Turin in 1980 with 52000 Square meters) was founded in 1953 in Turin with the denomination of Spirea, by three members: Armando Campioni, Adelchi Candellero and Filippo Gatta.
The society moved some years later to Rivalta of Turin, and another three times it changed denomination up to 1961 (SPIREA - INDEL - INDES - INDESIT), when it assumed the definitive social reason and the mark Indesit was born. (INDustria  Elettrodomestici Spirea ITalia)

The three founders belonged to that race of pioneers who in the second post-war Piemonte region of Italy showed that they are not particularly influenced by the excessive power of Fiat and the monoculture of the Cars (still actual). They choosed to set up a factory to produce household appliances   !

They have understood that they can do like Americans with lower costs and better on the plane of style because they work with designers and advertisers (In Turin there was that genius of Armando Testa) that in that decade begin to collaborate closely with the industry.





 Giving life precisely to that phenomenon that will be made in Italy. The intuition is rewarded and the products of Indesit do not struggle to find a market first in Italy and then also ABROAD. The growth of the company, in the Roaring sixties, is constant, also because its products in just over a decade are no longer prohibitive for an ever increasing number of Italian Families.

Indesit was producing "white" household electrical appliances like washing machines, refrigerators, freezers, dishwasher and kitchens,  television sets and shops fiscal recorders and portable radios. Despite their economical market sector they were very well made in fair semplicity and combined very long lasting simple construction.

All mechanical parts and general components of the household appliances were made by INDESIT Itself (even fridge compressors) with few exceptions as example electronic components were aquired from known fabricants but development , design and product fabrication/production  was all Indesit made on his own.

The company knew a swift productive and commercial development in the period of the economic boom, becoming the third one of the sector at national level .

 It conquered wide shares are in the national market which foreign countries of the household electrical appliances even in UK, and Germany were they have commercialized under the Quelle brand (Indesit fridge rebranded Quelle.



In the sixties and seventy, Indesit was counting quite eight rich productive installations, of which five to the North ( between Rivalta,  and Orbassano, ) and two in the South (Teverola and Carinaro (Council of Europe)), where they were used about 12.000 workers.

In those years, in the time era of the "fashion" of the refrigerator as the status of the modern family, the company expands its facilities, and despite a first crisis of 1962, the production volumes are flying exceeding two million and 500 thousand pieces annually and the workers Employees become 12000. At the beginning of the seventies, Indesit has seven factories in the North (freezers, refrigerators, washing machines, televisions), not counting the induced, and we start to build plants in the south in the province of Caserta.

In the same period to the Indesit there was tried a system of televisional broadcasting to colours named ISA, whom the Torinese company proposed in 1972 to the RAI, but whom it was not accepted by the Italian Government (guess why), because not conformable to other European systems!!! .

Starting from 1973 Indesit have had a new Crisis. Competition from Eastern technology is pressing, small businesses begin to be absorbed by monopolistic preordained organized Giants.

In 1977 the company denounces a heavy budgetary deficit, in 1978 the prices of the products are increased, but the sales are lowered because they are not Competitive. In 1980 for workers, the layoffs start, no more televisions will be produced at None (to). On 12 June 1980 Indesit communicates the total crisis in the household appliances sector in addition to the electronic Sector.
 The workers exhibit protest at pinerolo, orbassano, Torino and None.

There was acquired also the mark Hirundo, with which a line was proposed in the white sector (refrigerators, washing machines and other household electrical appliances), as well as apparatus in the brown sector, like radio to transistor branded Indesit-Hirundo. Such a mark today is not long time more used.

Indesit participated for 6 % in the Sèleco of Pordenone, to the epoch in which the control was held by Giovanni Mario Rossignolo, giving installations in disuse for the television sets manufacture. Zanussi and Rel were the greatest shareholders in Sèleco to that epoch.

In 1980, the Indesit went to big crisis and was put into checked administration, of which it went out in 1984, when it was recapitalized for 74 milliard lire and there new members  entered. Still for the Torinese company the crisis continued and the recovery was not going; following this in 1985 it gave his electronic division to the Olivetti .

In 1981 Indesit is divided into three holdings, the redundancies confirmed, but following the mobilizations you get a government intervention that buffers the Procedure.

In 1984 Indesit officially announces that its problems are structural, that because of this it is no longer possible to continue to limit the damage with forms of rotation on the work of part of the re integrated work force, and for the workers  "surplus " is required the cash zero Hours system to fund the unoccupied workers.

Much was the negotiations to find an industrial and financial partner, but the situation was so heavy to lead, in the same year, the company to the extraordinary administration, on the grounds of the law Prodi, and the Court of Turin appointed commissary the doctor Giacomo Zunino.

 For a long time now the work places had drastically decreased, and were reduced to a little more than 7.000 workers, the greatest part of which in case integration then unoccupied.

Even though it was commissioned, the company improved gradually the accounts, and in 1987 it was purchased to the auction at Merloni Elettrodomestici's already known for the mark Ariston and until then principal competitor in Italy of the Indesit itself. In the operation the of the Marche group invested quite 50 milliard lire in the acquisition of the society, and another 100 milliards it were provided for the reorganisation and the curing .
Indesit became the first mark of the company, and the factories were maintained only of None, Carinaro and Teverola.The factory in Orbassano is closed, None (Turin) unfolded and resized, until the last 400 workers are fired at the end of the year 2012.

TODAYS THERE IS NO MORE OF ANYTHING OF INDESIT SPIREA !!


R.I.P. ITALY..............

References:

Wells, John C. (2009). "Indesit". Longman Pronunciation Dictionary. London: Pearson Longman. ISBN 978-1-4058-8118-0.
Holden, Michael (23 June 2017). "Deadly London tower blaze began in Hotpoint fridge freezer, police say". Reuters. Retrieved 23 June 2017.

"Company" (in Italian). Indesit Company. 20 May 2015. Retrieved 15 July 2015.

"List of Public Companies Worldwide, Letter - Businessweek - Businessweek". Investing.businessweek.com. Retrieved 15 July 2015.

"IND.MI Profile | INDESIT COMPANY Stock - Yahoo! Finance". Finance.yahoo.com. Retrieved 15 July 2015.

"La fin de la bonne cuisinière Scholtès". L'Humanité (in French). 25 July 2005. Retrieved 13 June 2017.

"UK | Wales | 305 jobs to go at Indesit factory". BBC News. 3 March 2009. Retrieved 15 July 2015.

"Waterlogic PLC WTL Signed supply agreement with Indesit Company". Bloomberg. Retrieved 15 July 2015.

"UPDATE 3-Whirlpool to buy 60 percent of Italy's Indesit for $1 bln". Reuters. 11 July 2014. Retrieved 15 July 2015.