brat VAND statie de amplificare vintage Technics SU-V3
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Thread: VAND statie de amplificare vintage Technics SU-V3

  1. #1
    Registered User tataee2005's Avatar
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    VAND statie de amplificare vintage Technics SU-V3

    Fabricat intre anii 1981-1982
    Greutate 8.1 kg
    Consum de la retea: 460W

    Cateva date tehnice culese de pe net, din pacate nu am reusit inca sa gasesc manualul:

    Direct-coupled class A amp 2x40W (both channels driven)
    THD @ rated power 0.007% (8 Ohms)
    @ 50mW 0.08% (4 Ohms)
    Intermodulation distortion 0.007% 60Hz:7kHz 4:1 SMPTE (8 Ohms)
    Power bandwidth (both channels driven) 5Hz-30kHz (3dB)
    Damping factor (8 Ohms) 40
    S/N 100dB (IHF A-weighted) Tape/Tuner/Aux
    82dB (IHF A-weighted) Phono
    Freq. Response 2Hz-100kHz (-3dB) 20Hz-20kHz (0 dB)
    Channel separation 55dB @1kHz

    It has neat things like separate record and input selectors so you can record off the radio whilst listening to a CD, for instance. It also features overload and DC input-bias protection - the protection circuit operates a relay in the output so it disconnects the speakers if needed and it won't connect them until the output has no DC (also stops any thumps when switching on).

    The whole thing is very neatly made and well thought out - there's no mass of internal wiring and the selector switches are physically at the back, near the sockets, for short signal paths. They're remote-controlled from the front selectors with a kind of flat cable rack-and-pinion arrangement.


    Pret: 380 ron

    Si oarecum offtopic dar mi-a placut cum este explicat, comparatia intre cum se masura in anii aceia puterea unui amplificator si cum se masoara in zilele noastre Altfel spus, de ce sunt trecute puteri nereale si bombastice pe panourile frontale, posterioare si laterale ale receiver-elor de pe piata:

    QUOTE

    Because 35 watts/channel as specified by Marantz in the 1970's meant...

    " The unit can deliver 35 watts into 8 ohms for one hour, from all channels at the same time, with no significant change in distortion, or other specifications, at any time during, or after, the test hour."

    ...while 100 watts/channel today (for instance, in my JVC surround system) means...

    " The unit can deliver 100 watts for a fraction of a second, in one channel only, if the other channels aren't running and nothing else high energy has happened to drain the power supply of stored energy in the last few seconds."

    In fact, my JVC 5-channel Dolby surround receiver claims 500 watts RMS, but the power consumption label on the back panel tells the story:

    320 Watts

    If my JVC receiver was 100% efficient, meaning that every bit of power it took from the wall was delivered to the speakers as audio power (which it isn't), that'd give you only 64 watts a channel, about 2/3rds of the claimed power rating (which is 100 watts per channel, remember, 500 delivered as 100 per each of the five channels.)

    But since the receiver can only (at best) convert about 50% of the available energy to the speakers, and the available energy is what is left over after the heat is generated (did I mention that this model JVC runs almost too hot to touch on top, even when making no sound at all?) and the watts that go to lighting the panel and powering all of the other circuitry are accounted for, the system can perhaps, when brand new, on a good day, generate 32 watts a channel continuously with all the channels going, which is pretty sorry compared to the claimed 100 watt per channel rating. That is less power per channel than an old 2235 receiver. Shocking, eh?




    Si acum urmeaza pozele:
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  2. #2
    Registered User tataee2005's Avatar
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    si restul:
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  3. #3
    Agnostic Front al13n8r's Avatar
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    sa inteleg ca asta e statia pe care o aveai acasa si ca o pastrezi pe cealalta cu VU-metrele?
    faina jucarie, bafta la vanzare! user de nota 11!
    "If the world that we are forced to accept is false and nothing is true, then everything is possible."

  4. #4
    Registered User tataee2005's Avatar
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    dap, pastrez vu-metrele... pt moment...
    multumesc de feedback, bafta si tie


    am facut cateva poze si cu interiorul, l-am curatat in prealabil asa ca nu mi-e rusine
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  5. #5
    Administrator AIWA's Avatar
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    HK`ul nu-l vinzi?

    Technische Daten

    Ausgangsleistung (FTC)
    (beide Kanäle angesteuert, :30W pro Kanal (@ weniger als
    20Hz - 20kHz) 0,09% Klirrfaktor an 8 Ohm)

    Hohe Sofortstrom-Fähigkeit (HCC) :22A

    Leistungsbandbreite :<10Hz bis 100kHz
    (bei halber Nennleistung, 8 Ohm)

    Frequenzgang :0,5Hz bis 150 kHz
    (Ausgabe von 1W, +0, -3 db)

    Dämpfungsfaktor :60

    Fremdspannungsabstand
    (Ref. Nennleistung, A-wtd)
    Phono (MM) :80 dB
    Tuner/CD/Video :98 dB

    Eingangsempfindlichkeit/Impedanz
    Phono (MM) :2,2mV / 47kOhm, 125pf
    Tuner/CD/Video :135 mV / 22 kOhm

    Phono-Überlastung (MM) :110 mV

    Klangregelung
    Baßanhebung/- :+10 dB / - 10 dB
    absenkung (um 50Hz)

    Höhenanhebung/- :+10 dB / - 10 dB
    absenkung (um 10Hz)

    Legat de ce vinzi tu as putea spune ca e cea mai fidela descriere!
    http://www.ampslab.com/PDF/2sb688.pdf
    http://www.ampslab.com/PDF/2sd718.pdf
    Dupa cum se vede finalii lucreza in regimul lor optim! Ampliful asta CHIAR scoate puterea cu care se lauda!
    Asa ca atentie la boxe!
    Last edited by AIWA; 13-07-2006 at 13:28.
    ***A ridica piatra este cel mai usor gest posibil...restul e calvar! ***

    ATENTIE! - regulile ariei publicitate au fost actualizate - APASA AICI

  6. #6
    Registered User tataee2005's Avatar
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    Multumesc de completari AIWA, intr-adevar statia se simte ca e puternica, nu am reusit sa trec mai mult de jumatate cu volumul pe boxe care au inscris pe ele 100W sinus (Eltax-urile mele)-- zic ca au inscris pentru ca sunt convins ca nu e adevarata respectiva valoare-- din cauza ca difuzoarele ajunsesera sa se zbata furtunos si nu voiam sa le culeg de pe jos

    H/K-ul se poate vinde si el, apartine unui amic care si-a vandut boxele si momentan il tine degeaba.
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  7. #7
    Registered User tataee2005's Avatar
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    iata ce spune momolo pe forumul hi-fi referitor la SU-V3:

    "exact un SU-V3 din asta, argintiu, am avut eu in 1985 cumparat cu o poala de bani si cu preul de doza reparat cu un integrat ROB in locul celui original ars. Cel de la care am cumparat reglase VUmetrele sa bata mai tare incat pe la vreo 15W arata 100W ! Cool!
    Pe vremea aia mi-a placut in comparatie cu alte trancote amarate. Pot spune ca e primul amplif japonez pe care am facut "scoala"! Aveam si schema....sau poate o mai am! O schema destul de interesanta. "


    "Micul SU-V 3 este ceva mai ciudat ca schema; tin minte ca un anume integrat controla dinamic regimul de curent/tensiuni in power si ca nu e impartit in preu si power distincte ci e un power cu niste corectii pasive la intrare; preul de doza MM este pe un operational care are la intrare, inainte de capsula, o pereche de FET'uri. Din ce tin minte filtrajul era pe 4700mF. Traful este cam subdimensionat si statea foarte incins. Pe vremea aia era cel mai rafinat lucru avut de mine pana atunci; dar pretentiile mele de la acea data erau cu MULT sub cele de azi."

    Filtrajul este insa pe 6800mF.
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  8. #8
    Agnostic Front al13n8r's Avatar
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    al tau in ce stare e? are ceva schimbat prin el?
    "If the world that we are forced to accept is false and nothing is true, then everything is possible."

  9. #9
    Registered User tataee2005's Avatar
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    al meu e original de la mama lui... mama Matsushita
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  10. #10
    Registered User tataee2005's Avatar
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    ^up
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  11. #11
    Registered User tataee2005's Avatar
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    contact Y!M: tataee_titi sau tel 0722.744.026
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  12. #12
    Registered User berzebut's Avatar
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    alte scule de la technics nu mai ai?
    y!m: berzebut
    e-mail: [EMAIL="berzebut@yahoo.com"]

  13. #13
    Agnostic Front al13n8r's Avatar
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    omul e pasionat de "oldies but goldies" asa ca n-ai noroc aici
    "If the world that we are forced to accept is false and nothing is true, then everything is possible."

  14. #14
    Registered User tataee2005's Avatar
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    berzebut deocamdata nu...
    al13n8r stie ...mie-mi plac mai mult amplifurile vintage de la Technics decat cele noi am avut si mai nou da l-am dat si oricum nu avea nici el telecomanda.

    am vazut ca ti-ai luat 2 bucati SB-CS95; daca vrei vii cu ele si-i ardem o proba sa auzi cum suna macar.

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

    uitam: ca scula Technics mai am un cd-player SL-PG470A cu tot cu telecomanda, la o adica il dau ca-l tin pe post de mobila.
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  15. #15
    Registered User berzebut's Avatar
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    nu imi trebuie neaparat cu telecomanda .. ca nu sunt asa fudul, dar sa fie potrivit cu boxele mele,oricum si yo sunt de parere ca inainte se faceau lucrurile mai cu bun simt
    y!m: berzebut
    e-mail: [EMAIL="berzebut@yahoo.com"]

  16. #16
    Registered User tataee2005's Avatar
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    Pai in afara de faptul ca e Technics si boxele Technics alta potriveala nu vad si la cat il vezi de subtirel, cantareste o gramada, daca-l scapi pe picior ai incurcat-o...

    Poate nu ti-o place designu...asta da, e un pic mai ciudat, in spiritul anilor '80. Mie recunosc, imi plac vu-metrele Daca te intereseaza, ti-am zis, putem face o proba si la o adica negociem si pretul oleaca...
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  17. #17
    Registered User tataee2005's Avatar
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    350 ron zgarcitilor
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  18. #18
    Registered User tataee2005's Avatar
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    hai up ca ma grabesc
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  19. #19
    Registered User tataee2005's Avatar
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    300 ron ultimul pret.
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  20. #20
    Registered User tataee2005's Avatar
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    Up
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