LUXOR TYP 1241 AVANT YEAR 1977

The  LUXOR TYP 1241  AVANT  is a 12 inches (31cm) portable B/W television with 4 programs keyboard selected programs with potentiometers each one.

 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 set can also be powered with a 12volt DC source.
• Telescopic antenna is present above cabinet.
• All manual commands are front placed.
• A sound output for an  external speaker is present back.

•   Wave bands     VHF incl. FM and/or UHF (see above for details)    Power type and voltage     Line / Batteries (any type) / 220 / 12 Volt
  
  
  •     Loudspeaker     Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  
  
  •     Material     Plastics (no bakelite or catalin)
  
      Shape     Portable set > 8 inch (also usable without mains)
  
      Dimensions (WHD)      385 x 295 x 220 mm / 15.2 x 11.6 x 8.7 inch

 Luxor AB KONSUMENTELEKTRONIK was a Swedish home electronics and computer manufacturer located in Motala, acquired by Nokia in 1985.

 

Luxor Radio AB (AB Radiofabriken Luxor); Motala, Sweden: Founded by Axel Holstensson in 1923 and later beeing one of the largest radio makers in Sweden. Sells in Switzerland through: Apco AG; Zürich.
Repräsentant in Deutschland: Fritz Winkler; Baldestrasse 3; München 5. Ab 1975 Niederlassung in Deutschland als Luxor Electronic GmbH in 2 Hamburg 54, Kieler Strasse 555.

Originally a manufacturer of tape recorders, radios, television sets, stereo systems, and other home electronics, it launched its first home computer, the ABC 80 in 1978. The succeeding ABC 800 series was introduced in 1981 with new releases in 1983 being produced until the ABC line was terminated in 1986.

The company was established in 1923 by Axel Harald Holstensson (1889 - 1979). He was the son of an ore loader and had no training other than a few years of elementary school. He worked as an electrician and eventually as a travel fitter and foreman at ASEA years from 1907 to 1918. In his spare time, he studied electrical engineering. In 1918, he moved to Motala and started an electronics store and installation company Motala Electric Agency (Swedish: Motala Elektriska Byrå). The post-war depression, however, led almost to bankruptcy situation was critical and the resort was to start building radios. Components procured from Germany and it was shown to be possible to sell a number of devices at a profit, so Axel Holstensson registered the Luxor Radio Factory Company (Swedish: Firma Radiofabriken Luxor) in 1923. 

 
The name Luxor was apposite and then very topical as the Tomb of Tutankhamun had just been discovered near the city of Luxor in Egypt. Finnish company Nokia became a principal owner in the company in 1984. Computer production was discontinued in 1986, followed by television production in Motala in 1992, when the production moved to Finland. Instead, it produced receivers for cable and satellite television. But Nokia wanted to streamline its business to mobile telephony and therefore sold the satellite receiver business in 1998 to American company Space Craft Inc. The company continued to manufacture satellite receivers in Motala until 2002, when it was transferred to low-cost countries. In October 1997, Nokia sold its car speaker and audio amplifier business to Harman International Industries. A collaboration with the then Electrolux-owned Autoliv AB led to the company first became a partner for Luxor Electronics since 1998, buying the entire business. In Motala, is still manufacturing various types of electronic products for the automotive industry remains. The brand name was later sold to the Turkish company Vestel.

R.I.P  SWEDEN..................... 

Further Notes and Readings:

(SV) Sagan om Luxor (La storia di Luxor), su ekinge.nu. URL consultato il 21 luglio 2018.

(EN) Radio Luxor, su radiomuseum.org. URL consultato il 21 luglio 2018. ^ Il polo nord dell'elettronica, su ricerca.repubblica.it, 7 luglio 1989. URL consultato il 21 luglio 2018. ^ Il re turco dei televisori è ora un gigante mondiale, su italiaoggi.it, 13 ottobre 2012. URL consultato il 21 luglio 2018.

References:

• Ola Jonås, Luxor radio: en kort historik, 1991, Motala, Libris 2452933
• Sören Hjelm, Fabrikör Axel Holstensson: grundaren av radio-och tv-fabriken Luxor, 2008, Motala: HJ Information. Libris 11201108. ISBN 978-91-633-2335-5