Pioneer Dates of Manufacture

Discussion in 'Pioneer Audio' started by Dr. Strangelove, Jan 10, 2006.

  1. SirFaceNoise

    SirFaceNoise New Member

    Messages:
    1
    I have a PL-41 that does not have the 2 alpha characters at the beginning of the serial number. Anyone have an idea how to date this or what the dates of manufacture were on this turntable? I got it from the daughter of the original owner who said it was purchased "around 1970".

    Thanks!
     
  2. DaveWho1

    DaveWho1 New Member

    Messages:
    30
    Location:
    Far Northern Kommifornia
    SX-3500 - S/N AG3604815Y - built July, 1980

    SX-1500T F - S/N OK20276 - built November, 1968 - is this an early build? Not sure how to decipher the numerical digits in the S/N - would that be the 276th off the line, or the 20,276th? I doubt they built 20K+ units. ??

    I am assuming "Dr. Strangelove" is no longer with us, except in spirit, since he hasn't been here since late 2009? :(

    Very interesting thread - excellent work from the Dr. :thumbsup:
     
  3. Bassblaster

    Bassblaster Super Member

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    1,367
    Location:
    Cambridge, Ohio
    Sweet guide! i was able to see my SX-636 was made in september of 75
     
  4. So.Vox

    So.Vox New Member

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    11
    My PL550 was built in August of '77.

    Very helpful!
     
  5. timind

    timind New Member

    Messages:
    31
    Location:
    Indiana
    My PL-7 built in Sept 82 and my PL-S40 built 11 months later, Aug 83.
    Very interesting thread.
     
  6. montrecott

    montrecott My groove, your move Subscriber

    Messages:
    2,405
    Location:
    Chicago
    Great info. My SA-8100 was built in January of 1973, and my TX-9800 was built in October of 1980.
     
  7. Awesomeaudio

    Awesomeaudio AK Subscriber Subscriber

    Messages:
    540
    Location:
    Sydney, Australia
    This is a good thread.
    Mine as follows:
    SX-1000TW Multi Voltage (OG) July 1968
    SX-690 240V (Black Version) (VJ) October 1975
    SX-750 Multi Voltage (WF) June 1976
    SX-750 120V (XK) November 1977
    SA-7100 Multi Voltage (UI) September 1974
    SX-1050 Multi Voltage (*F) The first place letter is illegible. So 1976 has to suffice.
    SX-1250 120V (XK) November 1977
    PL-12R 240V (VJ) October 1975
    PL-530 120V (VI) September 1975
    PL-570 120V (YB) February 1978
     
    Last edited: Mar 20, 2017 at 3:36 AM
  8. Awesomeaudio

    Awesomeaudio AK Subscriber Subscriber

    Messages:
    540
    Location:
    Sydney, Australia
    Just wondering if the circular sticker with FW bears any significance on the 1000TW.

    [​IMG]
     
  9. rcs16

    rcs16 Super Member

    Messages:
    2,603
    Location:
    Baldwin, Ontario, Canada
    I now have a QX-9900, it has the same sticker on the back. On the first page of the service manual it says it is a QX-9900/FW. So that sticker identifies "FW" as the model configuration. Since these models have voltage selector taps for the transformer primaries, they only made one model configuration for all countries as far as I can tell. Some later models had various other country configurations, usually the transformer was different, has they would have a primary winding for a specific line V, most probably for cost saving reasons.
    I see your AM bar antenna leads with the plastic sleeving/covering is the same as mine, stiff, lost its flex. In order to change going to have to un-solder the leads inside and remove the strain relief to change the sleeving.
    Mine also has a broken antenna bracket, looks like some epoxy should be a band-aid quick fix.
     
  10. Awesomeaudio

    Awesomeaudio AK Subscriber Subscriber

    Messages:
    540
    Location:
    Sydney, Australia
    Thanks for the info there.
    Regards to that clear sleeving, I hadn't given it much thought actually .
    Doesn't really bother me all that much, but if I get my hands on a replacement sleeve I'll more than likely replace it.
    I love this amp so it would be worthwhile to do so.
     
  11. TheBlueEagle

    TheBlueEagle New Member

    Messages:
    15
    Location:
    Western USA
    Here's some additions to the data collection from part of our Pioneer stable:

    SX-990(f) QD 42751 April, 1970
    SX-1250 WC 3905598M March, 1976
    SX-1280 YA 3602961S January 1978 (which fits with the original sales receipt dated May of 1978)
    SX-1980 YA 3603984S January 1978
    SX-3900 AI 3606094S September, 1980

    SR-202W TF 2710920R June, 1973
    PDM-500 KC3605024W May, 1990 (Matches date stamp on unit too)

    An oddity I have is on a DVL-90 - It's serial is RIPPO 10282C. Date tag of September, 1997.
     
  12. Awesomeaudio

    Awesomeaudio AK Subscriber Subscriber

    Messages:
    540
    Location:
    Sydney, Australia
    I am assuming "Dr. Strangelove" is no longer with us, except in spirit, since he hasn't been here since late 2009? :(


    I have also wondered about this too. Does anyone know what happened to him ?
     
  13. sx1010JBL

    sx1010JBL New Member

    Messages:
    11
    Sx1010. Feb 1976
    Sx680. Feb 1979
     
  14. zebulon1

    zebulon1 Into Phase Linear's lately Subscriber

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    Location:
    Las Vegas Nevada
    I just read a thread about "Dr. Strangelove". The member/friend said he was in Australia on a permanent walkabout.
    Does any remember where I might of saw the thread/post?
    Whats the link to the site he operates?
     
  15. zebra03

    zebra03 All Audio - NO BS

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    zebulon1 likes this.
  16. Awesomeaudio

    Awesomeaudio AK Subscriber Subscriber

    Messages:
    540
    Location:
    Sydney, Australia
    This has been on the 1st page a little while. I wonder if he is talking about another thread possibly :dunno:
     
  17. Aaron99

    Aaron99 AK Subscriber Subscriber

    Messages:
    124
    Location:
    Vancouver WA.
    I just bought a QM-800A quadrophonic amplifier. I have not found much information on them except that they were manufactured in the early 1970s. Where is the serial number on these?
    There are only two numbers that I found.

    On the back and inside on the left side of the chassis.

    IMG_20170304_130006.jpg IMG_20170304_125241.jpg
     

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