HYPER ELECTRONIC YUNOST-402B YEAR 1984.

The HYPER ELECTRONIC YUNOST-402B  is a 12 inches portable B/w television with 4 programs keyboard preselection with potentiometric tuning search system.

The mechanical turret approach to television tuning has been used almost exclusively for the past 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.

 One " " new " " tuning system currently being incorporated in some television receivers uses a varactor tuner which overcomes some of the disadvantages of mechanical turret tuner by accomplishing tuning electronically. As the name indicates, the heart of such a tuner is a varactor diode which is used as a capacitive tuning element in the RF and local oscillator sections. In this system, channel selection is made by applying a given reverse bias voltage to the varactor to change its electrical capacitance. The channel selection biasing can be performed by mechanically or electrically switching approximately 5 or many more preset potentiometers. The problem with such arrangement is that it quite seriously limits the number of channels available to the consumer. Additionally, it suffers from the drawback that all potentiometers require adjusting for the desired channels. The VHF channels are usually factory adjusted while the six UHF channels require on-location adjustment. Moreover, using this arrangement, the only indication--during adjustment--of which channel is selected is by station identification.
Thes set is developed and fabricated entirely in U.R.S.S. with complete Russians components at all levels, from semiconductors to all discretes and even the CRT TUBE.

The chassis technology is all discretes based, No ICS. and can be powered with a 12Volt source or Mains 220V.

The Power switch is right side located and unlike many other sets wich have the volume potentiometer toghether with power switch, the HYPER ELECTRONIC YUNOST-402B  has the brightness potentiometer integrated with the power switch. When the set is powered off a nice screen fade to black is provided.

All other commands are above located in one rail potentiometers line.

Black and white portable television set equipped with a semiconductor. Screen with a diagonal of 31 cm. A channel selector for I.-V. zone 4 mechanically operated preferences. Plastic housing. Speaker preferences at the right of the screen, the other controls on top of the rear. Possibility of mains or 12V car battery.

Even if it's fabrication year is 1984 the set is still realized in very old fashioned construction technology like one of first semiconductors based portable television sets.



Hyper Electronic , was , is a specialist retailer in consumer electronics.

Basically it's an importer from many lands (Russia) of products then rebranded and marketed.

HYPER ELECTRONIC YUNOST-402B CHASSIS 7.109.129 INTERNAL VIEW.

The HYPER ELECTRONIC YUNOST-402B  CHASSIS 7.109.129  is quite sophisticated even for a little 12" B/W television .

Completely based around discretes is showing many parts, with power supply and frame output transformer bottom located and other receiver parts on the chassis itself.

The chassis is based on all Russian components.



The tuning circuits has a large knob potentiometers tuning system which use voltage controlled capacitances such as varactor diodes as the frequency determining elements.

Therefore a stable AFC circuit is developed:

A superheterodyne receiver having an automatic intermediate frequency control circuit with means to prevent the faulty regulation thereof. The receiver has means for receiving a radio frequency signal and mixing the same with the output of a superheterodyne oscillator. This produces an intermediate frequency signal which is coupled to a frequency or phase discriminator to produce an error signal for controlling the frequency of the superheterodyne oscillator. A regulation circuit is provided having an electronic switch to interrupt the feedback circuit when only unwanted frequencies tend to produce faulty regulation of the superheterodyne oscillator.


Power supply is realized with mains transformer and Linear transistorized power supply stabilizer, A DC power supply apparatus includes a rectifier circuit which rectifies an input commercial AC voltage. The rectifier output voltage is smoothed in a smoothing capacitor. Voltage stabilization is provided in the stabilizing circuits by the use of Zener diode circuits to provide biasing to control the collector-emitter paths of respective transistors.A linear regulator circuit according to an embodiment of the present invention has an input node receiving an unregulated voltage and an output node providing a regulated voltage. The linear regulator circuit includes a voltage regulator, a bias circuit, and a current control device.

In one embodiment, the current control device is implemented as an NPN bipolar junction transistor (BJT) having a collector electrode forming the input node of the linear regulator circuit, an emitter electrode coupled to the input of the voltage regulator, and a base electrode coupled to the second terminal of the bias circuit. A first capacitor may be coupled between the input and reference terminals of the voltage regulator and a second capacitor may be coupled between the output and reference terminals of the voltage regulator. The voltage regulator may be implemented as known to those skilled in the art, such as an LDO or non-LDO 3-terminal regulator or the like.
The bias circuit may include a bias device and a current source. The bias device has a first terminal coupled to the output terminal of the voltage regulator and a second terminal coupled to the control electrode of the current control device. The current source has an input coupled to the first current electrode of the current control device and an output coupled to the second terminal of the bias device. A capacitor may be coupled between the first and second terminals of the bias device.
In the bias device and current source embodiment, the bias device may be implemented as a Zener diode, one or more diodes coupled in series, at least one light emitting diode, or any other bias device which develops sufficient voltage while receiving current from the current source. The current source may be implemented with a PNP BJT having its collector electrode coupled to the second terminal of the bias device, at least one first resistor having a first end coupled to the emitter electrode of the PNP BJT and a second end, a Zener diode and a second resistor. The Zener diode has an anode coupled to the base electrode of the PNP BJT and a cathode coupled to the second end of the first resistor. The second resistor has a first end coupled to the anode of the Zener diode and a second end coupled to the reference terminal of the voltage regulator. A second Zener diode may be included having an anode coupled to the cathode of the first Zener diode and a cathode coupled to the first current electrode of the current control device.
A circuit is disclosed for improving operation of a linear regulator, having an input terminal, an output terminal, and a reference terminal. The circuit includes an input node, a transistor, a bias circuit, and first and second capacitors. The transistor has a first current electrode coupled to the input node, a second current electrode for coupling to the input terminal of the linear regulator, and a control electrode. The bias circuit has a first terminal for coupling to the output terminal of the linear regulator and a second terminal coupled to the control electrode of the transistor. The first capacitor is for coupling between the input and reference terminals of the linear regulator, and the second capacitor is for coupling between the output and reference terminals of the linear regulator. The bias circuit develops a voltage sufficient to drive the control terminal of the transistor and to operate the linear regulator. The bias circuit may be a battery, a bias device and a current source, a floating power supply, a charge pump, or any combination thereof. The transistor may be implemented as a BJT or FET or any other suitable current controlled device.


- The EHT Output is realized with a selenium rectifier.

The EHT selenium rectifier which is a Specially designed selenium rectifiers were once widely used as EHT rectifiers in television sets and photocopiers. A layer of selenium was applied to a sheet of soft iron foil, and thousands of tiny discs (typically 2mm diameter) were punched out of this and assembled as "stacks" inside ceramic tubes. Rectifiers capable of supplying tens of thousands of volts could be made this way. Their internal resistance was extremely high, but most EHT applications only required a few hundred microamps at most, so this was not normally an issue. With the development of inexpensive high voltage silicon rectifiers, this technology has fallen into disuse.A selenium rectifier is a type of metal rectifier, invented in 1933. They were used to replace vacuum tube rectifiers in power supplies for electronic equipment, and in high current battery charger applications.

The photoelectric and rectifying properties of selenium were observed by C. E. Fitts around 1886 but practical rectifier devices were not manufactured routinely until the 1930s. Compared with the earlier copper oxide rectifier, the selenium cell could withstand higher voltage but at a lower current capacity per unit area.

HYPER ELECTRONIC YUNOST-402B CHASSIS 7.109.129 CRT TUBE.

HYPER ELECTRONIC MOD. 431 YEAR 1986.

The tellye here in collection, THE HYPER ELECTRONIC MOD. 431 is a 12  inches color television , is an URSS made by an unknown russian factory.

It's a mixture of an european tuning and I.f. for PAL CCIR and a URSS strange chassis fitted in a portable set with antennas and power plug even for a 12volt source.Recently, it has become more popular than ever to watch TV in a car as the number of cars increases. In general, a storage battery of 12 volts is used in small cars while one of 24 volts is used in large cars so that there is a disadvantage that a separate power supply device is required for driving a TV set in compliance with the respective battery used in the car. The present invention relates to a power supply circuit of a television receiver used in an automobile, and in particular to a power supply circuit of a television receiver which enables two different voltages from two kinds of supply respectively mains at 220v and dc 12v.

Tuning is featuring manual sequential VST search for 16 programs and remote, others controls are manually performed on front.

The model here shown was branded for the Italian marketplace.

For his 12 inches color screen the HYPER ELECTRONIC MOD. 431   it's very big and heavy.

Hyper Electronic , was , is a specialist retailer in consumer electronics.

Basically it's an importer from many lands of products then rebranded and marketed.

HYPER ELECTRONIC MOD. 431 CHASSIS 454 INTERNAL VIEW.

A strange URSS made chassis with modular multi carrier chassis technology.

On the bottom of the lid is located the power supply panel which is interconnected with movable connectors to the other receiver chassis on front side.

The receiver chassis is even modular carrying the deflection + eht + signal units + tuners VHF and UHF.

ALL frame panels are vertically fitted, one front of the other.

The chroma unit is clearly european concept based (PHILIPS) but passive components are in similar fashion of the rest.

Th I.F unit is a clearly URSS parts based and even the rest of the tellye it's so except the tuning system which is a Policom (Italian system based of SGS chipset, all defunct factorys).


2.087.018 POWER SUPPLY

pdp116 CHROMA

as2039004-01 I.F.

02727.11.86 SYNCH AND FRAME A2550 + K953Y

TDA3560 (PHILIPS)
GENERAL DESCRIPTION
The TDA3560 is a decoder for the PAL colour television standard. It combines all functions required for the identification
and demodulation of PAL signals. Furthermore it contains a luminance amplifier, an RGB-matrix and amplifier. These
amplifiers supply output signals up to 5 V peak-to-peak (picture information) enabling direct drive of the discrete output
stages. The circuit also contains separate inputs for data insertion, analogue as well as digital, which can be used for
text display systems (e.g. (Teletext/broadcast antiope), channel number display, etc. Additional to the TDA3560, the
circuit includes the following features:
· The peak white limiter is only active during the time that the 9,3 V level at the output is exceeded. The start of the
limiting function is delayed by one line period. This avoids peak white limiting by test patterns which have abrupt
transitions from colour to white signals.
· The brightness control is obtained by inserting a variable pulse in the luminance channel. Therefore the ratio of
brightness variation and signal amplitude at the three outputs will be identical and independent of the difference in gain
of the three channels. Thus discolouring due to adjustment of contrast and brightness is avoided.
· Improved suppression of the internal RGB signals when the device is switched to external signals, and vice versa.
· Non-synchronized external RGB signals do not disturb the black level of the internal signals.
· Improved suppression of the residual 4,4 MHz signal in the RGB output stages.
· Cascoded stages in the demodulators and burst phase detector minimize the radiation of the colour demodulator
inputs.
· High current capability of the RGB outputs and the chrominance output.

-----------------

BINATONE MINI-TV MODEL NO. 12/9763 (ŠILJALIS) (RIGONDA) YEAR 1977.

 

 The BINATONE MINI-TV Model no. 12/9763  (ŠILJALIS) (RIGONDA)  is A  rare television set branded BINATONE but constructed In the C.C.C.P The Union of Soviet Socialist Republics (USSR, Russian: Сою́з Сове́тских Социалисти́ческих Респу́блик, tr. Soyuz Sovietskikh Sotsialisticheskikh Respublik IPA: [sɐˈjus sɐˈvʲetskʲɪx sətsɨəlʲɪˈstʲitɕɪskʲɪx rʲɪsˈpublʲɪk], abbreviated СССР, SSSR).

The BINATONE MINI-TV Model no. 12/9763 ('VEGA 402DE') (RIGONDA)  is a VHF/UHF 6" screen mono TV for System B/G operation (5.5MHz sound) and is ideal for basic TV/DXing for Continental travel use. Operation is from a removable heavy duty mains PSU or an external 12 volt source (all plugs etc supplied). The receiver has rugged construction and contained within a metal cabinet, the carrying handle doubling as a receiver stand. The BINATONE MINI-TV Model no. 12/9763 (402DE) features very good sensitivity and sharp selectivity with its 4 individually tuned IF stages (5 stage at UHF). Aerial input is via separate VHF/UHF 75 ohm coaxial sockets, in addition a strong integral whip (40" extended) is provided to rear. The VHF tuner is an 11 position 'click stop' turret covering all Band 1/3 'E' channels - adjust the ch.E2 coil to include ch.1A allowing ALL Band 1 TV/DX channels to be received - the fine tuning range in Band 3 is sufficient to cover virtually all European channels without adjustment. UHF coverage uses a small rotary tuner control (with varicap fine tune) covering the ch.21-68 range.

Rigonda BINATONE sets originate from the USSR and were imported into the UK from the 1972 season until the late 1980s. Most were 4 1/2” monochrome portables of an advanced design sold at very low prices to earn much needed foreign currency for Mother Russia.

The tellye has a very small screen and metal cabinet and can be powered by battery or adaptor like photographed.

It has only 2 bands VHF and UHF Channels and the screen is a REAL FLAT small format B/W type.

The hand grip can both used for transport or to support the tellye in a inclined position when watched. The same hand grip can be blocked in a desired position pulling it in the direction of the cabinet to lock it.

These were sold under both the Rigonda and Vega BINATONE marques and came housed in neat metal cabinets painted in various dreary 3-year-plan colours. Later Vega sets came in a slightly bigger plastic cabinet, usually red (naturally…) or dog poo brown.
These sets come from a completely separate engineering culture to those from Western Europe and Japan, so the circuit designs and fault patterns differ to what one is normally comfortable with. The components too are quite different, most particularly the transistors. These are difficult to substitute, not least because they are of different physical sizes and shapes to our “normal” types.

The set is fully transistorized and has a uncommon technology development type.

I like sets which are unusual and technically interesting, which usually means CRT'S. One make which I’ve always struggled with though is URSS made crt's sets , and I suspect that I am not alone…

Black and white portable television set equipped with  semiconductors. Screen with a diagonal of 16 cm. Two tuners separately for I-III. and IV.-V. zone. Metal cabinet, plastic mask screens. Volume control, brightness, contrast and tune to the right of the screen, the power switch on the back of a removable source (can be removed in case of operation at 12V.)

Binatone is a private company owned by brothers Partap and Gulu Lalvani. Binatone was started in the United Kingdom in 1958 to import and distribute consumer electronics. In the 1980s offices were opened in Spain, Japan, South Korea, Hong Kong, India, Nigeria and Taiwan.
In 1989 the company was divided, with Gulu Lalvani, chairman of Binatone Electronics International (BEIL), retaining the European and Hong Kong businesses, and Partap Lalvani (now Chairman of Binatone Industries, Ltd.) retaining the group's businesses in Eastern Europe, Africa and South Asia. An office in Moscow was opened in 1994 and an office in Dubai was opened in 2002.
Partap Lalvani's Binatone employs 350 people in 10 countries and the product range consists of small electronics like personal care products, cooking appliances and DECT telephones.
Binatone was founded in 1959 by two brothers, Gulu and Partap Lalvani. The company was named after Bina, their younger sister. In 1959 Binatone was the first company to import transistor radios into the UK from Japan. In 1970 Binatone opened buying offices in Hong Kong. In 1974 Binatone entered the TV games market, growing the sector five times in two years. In 1978 Binatone had the best selling TV game in the UK. In 1980 Binatone introduced its version of the Walkman and in 1981 it sold more Walkman's than Sony. In 1983 Binatone was the first in Europe with fixed line telecom. In 1989 Binatone opened its Hong Kong headquarters. In 1996 Binatone was the first company in Europe to introduce DECT telephones. In 2002 Binatone was the 2nd DECT telephone manufacturer in the world. Binatone was the official shirt sponsor of Queens Park Rangers Football Club in 2003/2004, 2004/2005 and 2005/2006. In 2004 Binatone entered the Russian telephone market with the Voxtel brand. In 2005 Binatone Telecom was in 55 countries with average growth of 30% per annum. In 2006 Binatone was the 3rd largest telephone manufacturer in Russia with 25% market share. In 2007 Binatone introduced its satellite navigation (GPS) range in Europe and Asia Pacific. In 2007 Binatone was appointed as one of five council board members of Deutsche Telecom. In 2008 Binatone was purchased by Dino Lalvani, son of Gulu Lalvani and formerly its COO and Sales and Marketing Director. Dino Lalvani, 35, has been primarily responsible for Binatone's international expansion and success. In 2008 Binatone was appointed Global Licensee of Motorola Digital Photo Frames, Video and Baby Monitors and North American Licensee of Motorola Digital Corded and Cordless Phones. In 2009 Binatone celebrated its 50th anniversary. In 2009 Binatone is the third largest in satellite navigation (GPS) with 10% market share in the UK. Binatone has 28% market share in the UK in telephones.

 

Radiotehnika / Par uzņēmumu Archived 2010. gada 10. jūlijā, Wayback Machine vietnē., rrr.lv

Gubins Mihails. «История рождения и смерти завода "Радиотехника"». lv.sputniknews.ru (krievu), 2017-10-13. Skatīts: 2019-01-15.

"Tiesa. Rīgas Centra rajona prokuratūrā.". Cīņa. 1.03.1941.

"Nelietīgi izmantojusi uzticību". Padomju Latvija, laikraksts 71. 22.03.1941.

Sputnik. «"Radiotehnikas" vietā parādīsies "Depo"». sputniknewslv.com (en-us). Skatīts: 2019-01-15.

Other readings: 

www.rrr.lv - oficiālā Radiotehnikas lapa

• www.radiopagajiba.lv/
• www.vef-rrr.ucoz.ru
• www.radi0tehnika.narod.ru
• www.artlebedev.ru/everything/radiotehnika/r-100/ - konceptuāls modelis