The MIVAR TV15" T55 is a 15 inches B/W portable television CCIR standard B/G VHF-/UHF tuner, two telescopic antennas,
- Power supply is obtainable by both mains 220V AC and a 12V DC supply.
- Front speaker bottom placed is present, also power switch.
- All usual commands such as bright, contrast, volume are above placed, top side.
- Back the adjustments for frame/vertical frequency, linearity, amplitude are present.
- It has 7 programs with mechanic push button under a tranparent lid with integrated potentiometers for search tuning in each button.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.
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Carlo Vichi MIVAR FOUNDER AND OWNER ( Montieri, 5 febbraio 1923 - Milano, 20 settembre 2021)
R.I.P. CARLO
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MIVAR was an Italian Brand no more active since 20/12/2013.
MIVAR is a Factory site in the near of Milan (italy) in a Industrial city conglomerate called Abbiate Grasso.
Founded in 1945 by Mr. Carlo Vichi class of 1923, The activity started in 1945 - in Milano, Via Ugo Tommei 5 street with fab
rication of little radio apparates.
1945 - Milan, Via Ugo Tommei 5: Begin the activity assembling small radios.
1950 - Via Curtatone 12: developed with the construction of more direct major radio components fabricants.
1956 - 13 Street Strigelli: industrial production is manily targeted to first radio devices with frequency modulation (FM).
1958 - Via P. 30 Jordanians: TV become a reality, the industries is doubling his ACTIVITY, always in Milan, we build the first "real" plant with 400 employees.
1963 - Abbiategrasso, Via Dante 45: in the wake of decentralization and the rampant success of the television, building a facility that will become important in place 800 employees occupying between 1968-70.
1990 - Abbiategrasso Canal towpath: aware of the physiological importance that television plays in society? Modern, rich expertise and resources, we began construction of a factory area of 120,000 m? which covered 30.00o , for the viabilit with parking spaces and 60,000 park trees.
Today's activity is oriented in virtual production of LCD crap but with very low market penetration due to "unfair" asian competitors presence and a local governement which don't care about.
(You call it global market, I call it WORLD DESTRUCTION combined toghether with mass Afro scum crap Immigration (EUROPEAN INVASION) to obtain destruction on a large scale in all places and to help more and better the loose of all OUR workplaces and firms , lives, people).
“If our buildings, our highways, and our railroads should be wrecked, we could rebuild them.
If our cities should be destroyed, out of the very ruins we could erect newer and greater ones.
Even if our armed might should be crushed, we could rear sons who would redeem our power.
Anyway Obsolete Technology Tellye will show even this model as a Time machine which looses nothing of the good tellyes ! ! !
Further Notes:
MonrifNet, Televisori Mivar: fine dei programmi il 30 novembre - Il Giorno - Legnano, su www.ilgiorno.it. URL consultato l'11 gennaio 2018.
^ “La mia Mivar chiude, l’affitto gratis a chi assume 1200 italiani”, in Fanpage. URL consultato l'11 gennaio 2018.
Amatori, Colli, p. 263.
B. Viganò, Mivar, fine della storia, in Job., n. 1, Job Network, febbraio-marzo 2014, pp. 18-21.
Carlo Vichi: Italiani! Ve la do io la tivù, in L'Espresso, 15 gennaio 2004, p. 63.
^ S. Biagini, MIVAR: tutto iniziò in via Tommei (PDF), in Quattro. Giornale di informazione e cultura della Zona 4 Vittoria Forlanini, n. 85, Associazione culturale Quattro, maggio 2007, p. 7.
G. Villani, Una intervista con Carlo Vichi: la MIVAR, in La Scala Parlante, n. 1, AIRE, gennaio 2020, pp. 15-19.
Blog | Carlo Vichi, la Mivar e la dura vita di un imprenditore-contro, su Il Fatto Quotidiano, 17 ottobre 2013. URL consultato il 24 novembre 2021.
Giovanna Chiodini, Abbiategrasso, signore & signora Mivar: 75 anni da fiaba, in Il Giorno.it, 13 aprile 2019. URL consultato il 6 marzo 2021.
^ Redazione, L'appello di Carlo Vichi: "Samsung, ti do la Mivar se produci le tv in Lombardia", in Il Giorno.it, 11 marzo 2017. URL consultato il 7 marzo 2021.
^ Fausta Chiesa, Carlo Vichi, morto il re dei televisori italiani Mivar di Abbiategrasso: aveva 98 anni, su corriere.it, 20 settembre 2021.
^ J. Piromallo, Mivar, Carlo Vichi: ‘Hitler è il mio eroe’, in Il Fatto Quotidiano.it, 20 marzo 2014. URL consultato il 7 marzo 2021.
^ Redazione, “Solo mister Samsung può salvare la mia Mivar”, in Ticino Notizie, 6 febbraio 2017. URL consultato il 7 marzo 2021.
^ Memento con una targa al monumentale ricorda i martiri fascisti di Milano. Lo sdegno dell'Anpi, in Fascinazione.info, 22 marzo 2019. URL consultato il 7 marzo 2021.
^ S. Garzillo, Milano, l’estrema destra al cimitero monumentale per il Centenario del fascismo, in Fan Page, 23 marzo 2019. URL consultato il 7 marzo.
- F. Amatori; A. Colli, Impresa e industria in Italia: dall'Unità a oggi, Venezia, Marsilio Editori, 1999, ISBN 88-317-7289-9.
- A. Andreani, 4 Novembre 2006: Visita alla Mivar in una data particolare, in Antique Radio Magazine, n. 78, Treviso, Mosè Edizioni, maggio-giugno 2007, pp. 6-13.
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