Universum [Quelle] Dynamic's System HiFi 2500 V 3297 [Gold Star GSA-8500 / Pioneer SA-8500], 1980, made in Germany

Link: radiomuseum | hifiengine | hifi-archiv | instruction/owners manual | elektrotanya

Оконечник собран на: Motorola MJ15015 & MJ15016 попарно в каждом канале.

Country:  Germany
Manufacturer / Brand:  QUELLE GmbH (Universum); Fürth und Nürnberg
Year: 1980 ??

Category: Audio Amplifier or -mixer
Semiconductors (the count is only for transistors) Semiconductors present. 51 x transistors, 24 x diodes
Main principle Audio-Amplification
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 220 Volt
Loudspeaker - This model requires external speaker(s).
Power out 100 W (undistorted)
Model: Universum Dynamic's System HiFi 2500 Bestell-No.: 012.391 - QUELLE GmbH Universum; Fürth
Material Metal case
Shape Book-shelf unit.
Dimensions (WHD) 420 x 150 x 340 mm / 16.5 x 5.9 x 13.4 inch 
Weight: 12.5kg

    • Quelle HiFi Stereo Vollverstärker Modell Universm Dynamic's Systm HiFi 2500.
    • 2x 75 Watt Musk, 2x 50 Watt Sinus
    • Speaker load impedance: 4Ω (minimum)
    • 40 - 20000Hz +/- 1,5dB
    • Total harmonic distortion: 1%
    • Damping factor: 14
    • Input sensitivity: 5mV (mic), 1.2mV (MM), 300mV (line)
    • Phono1 IN, Phono2 IN, Tuner IN, AUX IN
    • Tape Monitor
    • Mic Mixing
    • Bass- & Treble Contol
    • Loudness
    • Speakers A, B, A+B, Matrix
    • Muting
                      Price in first year of sale 298.00 DM
                      Mentioned in -- Original prospect or advert (Quelle Katalog 1980)

                      Korg DRV-2000 Digital Reverb, June 1987, made in Japan

                      Released: 1986
                      Quantization: 16 Bit
                      Sampling Frequency: Unknown
                      Frequency Response: 20Hz-15kHz
                      Dynamic Range: 95db
                      THD: o.o1%

                      The Korg DRV-2000 Digital Reverb is a creative digital reverb that responds like a musical instrument – because it responds to the way you play. The Korg DRV-2000. Much more than a professional 24-bit digital reverberation unit. Much more than a MIDI compatible multi-effects unit, featuring 16 programs like Gate Reverb, Stereo Echo, Flanger, Space Pan, and dual effects programs like Reverb and Echo and Reverb and Chorus.
                      Much more than a creative sound-processor that lets you program and store up to 80 of your own effects. The Korg DRV-2000, like a musical instrument, can actually be controlled by tile way you play. We call it Multi Modulation. It enables you to modulate parameters such as Reverb Time, Pan Speed, Echo Feedback Level and Gate Shape by the level of your playing, whether you play electric guitar sampling keyboard, sax or even drums.
                      Each of the DRV’s 96 powerful effects programs (16 presets, 80 User Programs) can respond to your playing just as expressively as your own instrument does. MIDI users can modulate the Korg DRV-2000’s effects by MIDI touch sensitivity and a full range of MIDI controllers. You can also use optional foot controllers for Multi Modulation, as well as for selecting programs and cancelling effects, leaving your hands free to play your music. The Korg DRV-2000 Digital Reverb – it responds like a musical instrument.
                      Multi-ModulationThe Korg DRV-2000 allow’s you to select, for each effects program. two parameters 10 be controlled by Multi Modulation You can then select a control source Irom Ihree calegones.
                      • INPUT LEVEL: The level of your playmg (or even your singmg)
                      • MIDI: A full range of MIDI controllers, as well as
                      • MIDI Note Number, Key Velocity, and After Touch
                      • VOLUME PEDAL An optional volume pedal

                      For each parameter, the Multi Modulation sensitivity can be set anywhere from – 100% to + 100%. For example, you could control Reverb Time by MIDI Key Veloclly. Set the Multi Modulation sensitivity 10 +100% and the Reverb Time will increase as you play louder, to add power to dynamic solos.
                      Set the sensitivity to – 100% and the Reverb Time Will Increase as you play more softly, to add atmosphere to quiet passages. On all programs, you can Multi Modulate the Input level or Output level, so that you have complete control over the overall level of the processed-sound direct-sound mix from your Instrument.
                      And when you change programs (using an optional foot switch) the parameters that you have selected for Multi Modulation change automatically. The Korg DRV-2000 is designed so that during performance you need never touch the controls on the main unit – you’re totally mobile.
                      Input LevelWith the DRV -2000. control of digital effects is not Just lor MIDI users. Arrt player can control parameters list by the level of their Playing. Natural, realistic effects can be created, such as having the Reverb Time increase when you play louder.
                      Special effects are easy too, like Multi Modulating the Space Pan so that when you turn up for a solo, the sound pans dramatically between your speakers. You could take advantage of the Korg DRV-2000’s variable Gate Shape feature and use Input level to modulate the Gate Reverb program so that your playing actually affects the type of reverberation that you hear.
                      Volume Pedal
                      Another plus for non MIDI users. A volume Pedal such as the Korg KVP-001 can be used to control any two selected parameters. For example, a pianist could use a volume pedal to increase the Reverb Time of any of the DRV-2000’s six natural reverberation programs, to instantly add just the right amount of ambience to his  sound or an electric guitarist could use a volume pedal to simultaneously control the speed and depth of the Flanger program.
                      MIDI ControlOf course, the Korg DRV-2000 IS fully compatible with MIDI (Musical Instrument Digital Interface), the technology that allows digital instruments to control each other. This means that you can set selected parameters to respond to a wide range of MIDI controls, including:
                      • Key Velocity
                      • After Touch
                      • MIDI Note
                      • NumberPitch Bender
                      • Foot Controller
                      • Data Entry Keys
                      • Modulation Controller

                      This permits an enormous variety of MIDI control possibilities. such as:
                      • Controlling Echo Feedback by the Pitch Bend controller of your synth. This lets you lengthen echo on high lead lines, then shorten echo to prevent muddying of lower pitched passages.
                      • Using a MIDI drum machine such as the Korg DDD-1 Dynamic Digital Drums to control Reverberation Time. You can set each instrument on the DDD·1 to transmit a different MIDI Note Number, automatically varying the reverb effect a long, thunderous reverb on the snare, medium reverb on the Toms, short reverb on the bass drum.
                      • Selecting MIDI Note Number for Multi modulation so that the depth and rate of chorus or flanging varies according to the pitch of the notes you play on your DSS-l Digital Sampling Synthesiser or any MIDI keyboard.

                      Palladium Stereo Cassette Deck NSC-7000 (955/531-4NA) [Fisher CR-7000], 1982, made in Germany


                      • Full Automatic Stop
                      • Dolby System
                      • 2x Cinch Audio (1x Input, 1x Output)
                      • 1x DIN-Buchse
                      • 1x Kopfhörerausgang (Vorderseite)
                      • 1x MIC (Vorderseite)

                      Grundig Weltklang Type Super 246W (with FM), 1950-1951, made in Germany

                      Link: radiomuseum (mit UKW) | radiomuseum (ohne UKW)

                      Country: Germany
                      Manufacturer / Brand: Grundig (Radio-Vertrieb, RVF, Radiowerke)
                      alternative name Grundig Portugal || Grundig USA / Lextronix
                      Year: 1950/1951
                      Category: Broadcast Receiver - or past WW2 Tuner
                      Valves / Tubes 3: ECH11 EBF11 ECL11
                      Semiconductors (the count is only for transistors) Tr.Gl.=Metal-rectif.
                      Main principle Superheterodyne (common); ZF/IF 468 kHz
                      Tuned circuits 6 AM circuit(s)
                      Wave bands Ready for FM, has Broadcast, Long Wave, Short wave.
                      Power type and voltage Alternating Current supply (AC) / 110-220 Volt
                      Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
                      Power out
                      Model: Weltklang Type 246W [mit UKW-Vorbereitung] - Grundig Radio-Vertrieb, RVF,
                      Material Bakelite case
                      Shape Tablemodel, low profile (big size).
                      Dimensions (WHD) 392 x 280 x 185 mm / 15.4 x 11 x 7.3 inch
                      Source of data Radiokatalog Band 1, Ernst Erb

                      Tesla Music 70 AZK450 mono tube amplifier, 1972-1975, made in Czechoslovakia

                      Link: radiomuseum | Operating Instructions | Adjustment instructions | Schemes | Schemes from the book "Kottek"

                      Country:  Czechoslovakia
                      Manufacturer / Brand:  Tesla; Praha, Bratislava etc.
                      Brand Supraphon
                      Year: 1972–1975

                      Category: Audio Amplifier or -mixer
                      Valves / Tubes 5: EF86 ECC85 EL34 EL34 EM84
                      Semiconductors (the count is only for transistors) 10:
                      Main principle Audio-Amplification
                      Wave bands - without
                      Power type and voltage Alternating Current supply (AC) / 120; 220 Volt
                      Loudspeaker - This model requires external speaker(s).
                      Power out 50 W (unknown quality)
                      Model: Music 70 AZK450 - Tesla; Praha, Bratislava etc.
                      Shape Tablemodel with Push Buttons.
                      • Leistungsverstärker Mono Sinus 50 Watt, Musikleistung 70 Watt.
                      • Vorstufen mit Transistoren. Eingänge: 3× Mikro, 2× Gitarre, TB, Radio, und Echo.
                      • Übertragungsbereich: 40-16000 Hz. 
                      Mentioned in Ceskoslovenske Rozhlasove a Televizni Prijimace a Nizkofrekvencni Zesilovace (Band IV S 362 -365)

                      Victor BLA-E20 [JVC Nivico 5320], 1968, made in Japan

                      Link: audio-heritage

                      Price unknown at launch (released August 1968)
                      18,300 yen (one, around 1969)
                      ¥ 19,400 (1 unit, around 1970)

                      The speaker system of the H.E series pursuing high efficiency (High Efficiency).

                      In order to increase the efficiency of the HE series, a special processing method must be used to ensure airtightness during the pulp disintegration stage, and the apparent density, Young's modulus, propagation loss, etc. are used for the speaker unit. We adopt a method that can be freely selected at the stage of Victor vacuum press after making according to the.

                      A 20 cm cone type woofer is installed in the low range, a 9 cm cone type squawker is installed in the mid range, and a 5cm cone type tweeter is installed in the high range.

                      In order to make an enclosure into a completely closed structure, the method of fixing the unit from the front by completely sealing and assembling the six ridges with adhesive is adopted.

                      This not only prevents air leakage, but also forms a duct for the thickness of the baffle when the unit is fixed from the inside, thus preventing the anterior chamber effect from occurring.

                      The level control is carried.

                      method: 3 ways, 3 speakers, a sealing system, and a bookshelf type

                      • For low-pass: 20cm cone type [label: Victor P.D.Speaker SK2196B 8Ohm 10W 893 13A]
                      • For mid ranges: 9cm cone type [label: Victor Tweeter SK2128E 8Ohm 10W 89309]
                      • For high regions: 5cm cone type [label: SK2131D 89323H 8Ohm 3W JVC Japan]
                      Impedance: 8Ω
                      Maximum input: 30W
                      Frequency characteristic: 37Hz-20000Hz
                      Output sound pressure level: 100dB / W
                      Crossover frequency: 5kHz, 10kHz (6dB / oct)
                      External dimensions: Width 330 x height 550 x depth of 250 mm

                      Weight: 9kg / 1 pcs

                      Pioneer CA-100 | Pioneer CA-Y7 [ Preamplifier / Equalizer / Mixer], 1983-1985, made in Japan

                      Link: hifiengine | Instruction/Owners Manual

                      Европейская версия называется CA-100 (надписи на английском языке, именно этот вариант у нас, штатно 220V)

                      Японская версия называется CA-Y7 (надписи на японском языке, питание 100V)

                      Эквалайзер: 7 полос.
                      Режим микшера.
                      Подключение 3-х источников, 2-х микрофона [Есть регулируемый эффект эхо для обработки микрофона (Караоке)]
                      Выход на наушники
                      Регулируемые входы
                      2 индикатора уровня сигнала
                      Подключается как любой источник так и кассетная дека.
                      Все Level Meter работают. загораются и т.д.

                      Куча функционала вообщем…
                      Все родное, все оригинальное.

                      Mic level control - adjusts the microphone levels
                      Panpot control - used to move the sound from the microphones from left to right
                      Echo level control - adjusts the echo effect applied to the microphone sound
                      Tape level control - adjusts the input level
                      Tape level meter - indicates the tape playback input level
                      Source level meter - indicates the program source input level
                      Source level control - adjusts the program source input level
                      Graphic equalizer controls - 7 section frequency effect


                      INPUT (Sensitivity/Impedance)
                      INPUT, TAPE PLAY (-3db fader setting) - 150 mV/50 kohms
                      MIC 1,2 - 0.3 mV/25 kohms

                      OUTPUT (Level/impedance)
                      OUTPUT - 150 mV/330 ohms
                      TAPE REC - 150 mV/2.5 kohms
                      Gain - TAPE, SOURCE; 3 dB / MIC; 53 dB

                      Total Harmonic Distortion(1 kHz, 1.5 V)
                      TAPE, SOURCE - + 0.01%

                      Frequency Response
                      TAPE, SOURCE 10 Hz — 80 kHz (+0/-3) dB
                      MIC 1,2 150 Hz — 10 kHz (+0/-3) dB

                      Graphic Equalizer Section
                      Center Frequencies - 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.4 kHz, 6 kHz, 15 kHz
                      Level Controls - +/-10dB
                      Signal-to-Noise Ratio (IHF, A network, 1 V)
                      TAPE, SOURCE (graphic equalizer ON, volume center) - 90 dB
                      MIC1,2 - 69 dB

                      Power Requirements
                      KU, KC models - AC 120 Volts, 60 Hz
                      R, R/G models - ~AC 110 V—120 V/220 V—240 V (switchable), 50/60 Hz
                      HB model - a.c. 240 Volts 50/60 Hz
                      Power Consumption
                      KU, KC models - 20 Watts (max.)
                      R, R/G models - 20 Watts (max.)
                      HB model - 25 Watts (max.)

                      Dimensions 420(W) x 158(H) x 226(D) mm / 16-9/19(W) x 6-1/4{H) x 8-7/8(D) in.

                      Weight 4.2 kg (9 lb 4 oz)

                      Related Catalogues
                      HiFi Components
                      Stereo Components

                      Sonab C-500 Stereo Cassette Deck Dolby-B [Nakamichi 500 Dual-Tracer], 1974-1978, made in Sweden / Japan

                      Link: cassettedeck | vi-fi

                      This Sonab C-500 is a stereo cassette deck with Dolby B noise reduction, it was first sold by Sonab in 1974 with a list price of USD $400 and discontinued 4 years later in 1978.

                      The main features of the Sonab C-500 are: 2 heads, mechanical 3 digit tape counter, manual tape type selection and capable of handling normal and chrome tapes, belt driven single-capstan transport.

                      Typical of this deck is the 70's top loading layout with the cassette compartiment located on the left side of the deck. Tape eject is operated mechanically and the cassette needs to be placed with the side to be played facing forward in the cassette well.

                      Level meters used on the C-500 are analog needle VU reading meters. Mechanical transport controls for reliable C-500 transport function selection.

                      The Dolby-B system reduces tape hiss on tapes recorded on the C-500 by as much as 10 dB at the highest frequencies.

                      To make live recordings this deck has 3 microphone inputs (for left, right and center channels) to connect microphones with a jack connector. For undisturbed listening a jack connector for a pair of stereo headphones is supplied. Connection to other audio components for plaback can be achieved by a RCA cable and recording from a source by a RCA cable.

                      The variety of hi-fi market in the 70's was amazing. We all know about the creation of the major Japanese brands, but emerged and European brands, recognized alongside British manufacturers such as Leak and Garrard. For example, Bang & Olufsen has experienced its golden age was at that time. There were other companies that sell beautifully designed device through their visionary designers - for example, the West German Dieter Rams Braun or Clas-Göran in Swedish Sonabia Wanning.
                      Sonaba, like automotive SAAB products produced radically different than most manufacturers. Sonaba began a series of multi-directional speaker series with a wide range of OA speakers mounted from the top. Then came an attractive offer amplifiers and receivers, which focused on ease of use and minimalist design, avoiding the tacky splendor of Japanese rivals. And probably that is why Clas-Göran Wanning gave Nakamichi C 500 of its strange appearance memorable.
                      In the early seventies Compact Cassette was just beginning to take off; This format has existed for a decade, but has not reached mass acceptance until improved product quality. In 1974. Many manufacturers have realized that they need a stereo cassette format hi-fi .
                      The company Nakamichi had the widest knowledge and experience in this field, and what brought Sonaba from each other, the aesthetic and ergonomic design (later adapted by Nakamichi in many other embodiments). Created a device designed in such a way "to make it as simple as possible to use, playing, recording, and above all". It was not an empty rhetoric, because even by today's standards it is a "pure" and elegant-looking machine.

                      What then has been achieved in terms of technical performance, today is perhaps not unusual, but then woke respect. We speak of uniformity of feed of 0.13% and a frequency of 30-16,000 Hz (+/- 3 dB). The signal-to-noise ratio was 51 dB at Ferric off and Dolby, 60 dB in the case of Chrome and Dolby. For this device was small and compact in construction (380x250x105mm), weighing 4.5 kg.
                      Established nice machine; everything in it was simple, and with heart Nakamichi, allowed the recordings for calibration tapes and Ferric Chrome, so you can set the recording was exactly as you wanted. Unusual, recessed gauges are easy to read when setting recording levels, but largely invisible during playback when they are not needed.
                      Sonaba cassette gives a powerful, musical sound that is quite shiny up, if we use the Chrome tape. It sounds remarkably stable and detail. Not surprisingly, we used the best possible components Nakamichi. And that's why Sonaba C 500 was very expensive when introduced to the market. And not without reason, because it is one of the most unique products in the family Nakamichi in history!


                      Tape Transport:   Servo controlled DC motor Single Capstan
                      Tape speed:   4.76 cm / sec ± 1%
                      Wow and Flutter:   ± 0.13% WTD peak
                      Fast Winding Time:   100 sec. For C60 cassette
                      Instruments:   two quasi-peak reading meters recording
                      Noise reduction system:   Dolby B
                      Tape Counter: 3 figures with memory rewind
                      Heads:  Two hard Permalloy (High Metal μ) heads
                      Tape Selector:   for standard or Chomium dioxide with separate bias tape and correction characteristics
                      Bias frequency:   105 kHz
                      Frequency Response:
                      Standard tape 30 - 15,000 Hz ± 3 dB
                      Chrome tape 30 - 16,000 Hz ± 3 dB
                      Bias Settings: 
                      Standard Maxwell UD =
                      Chrome = TDK Kr0₂
                      Signal-to-Noise Ratio:
                      Standard tape without Dolby: 51 dB
                      Standard tape with Dolby: 58 dB
                      Chrome tape without Dolby: 63 dB
                      Chrome tape with Dolby: 60 dB
                      Erasing Suppression:   60 dB
                      Channel Separation:  35 dB
                      Suppression of cross-talk : 60 dB
                      Inputs Sensitivity / Impedance:
                      Microphone L, R & center: 0.2 mV / 1 k Ω
                      Line: 70 mV / 180k Ω
                      DIN 12 mV / 30 k Ω
                      Outputs Level / Impedance:
                      Headphone: minimum / 8 Ω
                      Line: 1.2 V / 600 Ω
                      DIN: 1.2 V / 600 Ω
                      Power Requirements:   100, 117, 220, 240 Volts, 50/60 Hz AC
                      Power Consumption:   25 W
                      Dimensions (H x W x D):   380 x 105 x 250 mm (15 "x 4" x 10 ")
                      Weight:  4.5 kg (10 lbs)

                      Diatone DA-A100, 1973, made in Japan

                      Link: audio-database

                      250,000yen(1973 release)

                      It is the stereo power amplifier used as DA-P100 and a pair.

                      2 block configurations which prepare a voltage amplifier before an electric power amplifier are adopted.
                      This has solved the problem of power amplifier including S/N and distortion sharply with stable NFB.

                      The high thing of fa (high region cutoff frequency) with the sufficient linearity of hFE (direct-current current gain) is selected carefully and used for a power transistor. This has realized the power ratio 3.0.
                      Furthermore, the results of having excelled in sound quality, such as reduction of notch distortion, have been obtained by using it by a single push pull.

                      A power-source part is considered as a thing of a magnification stage and one, is aiming at improvement in a quality of the part itself, and is aiming at improvement in the whole.
                      The not a transformer but cut core of EI structure with many losses are adopted as a power transformer. Moreover, improvement in a regulation is aimed at by enlarging capacity with 400VA.
                      Moreover, in order to acquire the Oide power of the 4-ohm load 150W, impedance has adopted as the filter capacitor of a power source enough what can send large current low. The electrostatic capacity of 22000 micro F and the current capacity 36A are carrying out thing adoption at the capacitor.

                      It is the design in which the protection circuit operates at radiator (radiator) 100 degree C.

                      One power transistor is equipped with one unusual detector circuit.

                      Form Stereo power amplifier
                      - Both channel operation :
                      150W+150W (4ohms)
                      100W+100W (8ohms)
                      - One-side-channel operation :
                      180W/180W (4ohms)
                      110W/110W (8ohms)
                      - Music power :
                      450W (4ohms)
                      250W (8ohms)
                      - EIAJ:
                      340W (4ohms)
                      220W (8ohms)

                      THD 0.1% (at the time of an Output power)
                      Cross modulation distortion 0.15% (at the time of an Output power)
                      Input sensitivity/impedance 1V/100kohm
                      Power bandwidth 20Hz - 20kHz
                      Frequency response 10Hz - -30kHz 0.5dB
                      Remains noise 0.25mV
                      Dumping factor 200
                      The semiconductor used Transistor: 35 pieces
                      Diode: 25 pieces
                      Power source AC100V, 50Hz/60Hz
                      Power consumption 205W
                      Dimensions Width 360 x height 223 x depth of 268mm
                      Weight 16kg