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2017 Sansui Serial Number Database

First entry for August, WK31 got a very meagre harvest:
AU-D33,432100639,catawiki.com
AU-D707F,221010086,catawiki.com,T-tag_JDM
310,822070045,marktplaats.nl
AU-2900,028120100,Second Life Audio
D-X301i,570113121,marktplaats.nl

But don't pity me, I'm now at 127 unique serialz from Allegro's archiwum and I am still in March 2018. This is for the first half of that year.
 
kw31 harvest - I recognised the holiday season...calm week.

771,825060022,kleinanzeigen
2000X,812051618,kleinanzeigen
AU-519,329090485,kleinanzeigen
AU-9500,213070749,kleinanzeigen
CD-190,50306014,kleinanzeigen
CD-X301i,542101723,kleinanzeigen
CR-M7,212040036,kleinanzeigen
D-370,852060238,kleinanzeigen
D-3000WR,328032951,kleinanzeigen
G-5700,829090777,kleinanzeigen
QR-1500,811120824,kleinanzeigen
RG-7,582090684,kleinanzeigen
SC-3330,259080979,kleinanzeigen
SC-2110,598021558,kleinanzeigen
SP-X1U,9466,kleinanzeigen
SP-X8700,909030791,kleinanzeigen
SR-222 MKV,428080220,kleinanzeigen
TU-X711,619077563,kleinanzeigen
TU-519,849050950,kleinanzeigen
 
Thanks for the serial numbers. I'll go through the corrections when I have more time.

@Ustirit Your D-550M was built on assembly line 22 in September 1981. It was the 24 unit produced on that line that month.

- Pete
 
Hi Pete,

AU-X901,438083197, antpaubarcar
D-X701,328010684, antpaubarcar
CD-X301i,618070990, antpaubarcar
TU-X501,608024643, antpaubarcar

Thank You!
 
Thanks for the newly posted serial numbers.

I've also gone through the corrections from last month. I'll process them with the August batch. I've also looked at the conflicts.

The A-alpha 7 was a decade duplicate that I should have caught when processing last months batch. I added it to the decade duplicate table.

The rest of the conflicts that were confirmed with photos, I added to the database by changing a digit on either the existing serial number or the new one. They were all examples of multiple models built on the same assembly line in the same month. Since they were originally entered from internet sources spanning a few years there was no way to confirm the originals. So I changed the 8th or 9th digit to eliminate the conflict and added a note for reference.

Since all of these examples were produced on the same assembly line in the same month there is the possibility that they are actual duplicate serial numbers. Without seeing photos of both serial numbers there is no way to verify a "recycled" serial number. We have confirmed that duplicates do occur but don't know how common it is.

Thanks for following up. As the database gets larger we are going to see this more.

- Pete
 
800,010101493,ebay
800,029022131,ebay
221,027010277,ebay
200,820010973,ebay
G-5700,859030750,ebay
G-7700,819120377,ebay
 
Harvest for KW32:
AU-8500,214030456,catawiki.com
AU-999,250080143,catawiki.com
441,024111342,marktplaats.nl
T-M7,432038960,marktplaats.nl
AU-D55X,614043407,marktplaats.nl
AU-217,838112244,marktplaats.nl
TU-217,028092398,marktplaats.nl
C-55,581071009,marktplaats.nl
RZ-3000,519080733,marktplaats.nl
SC-1300,240011725,marktplaats.nl
SR-222MKii,318050429,marktplaats.nl
S-X700,527010344,marktplaats.nl
T-505,623048302,marktplaats.nl
TU-5900,816050005,marktplaats.nl

The T-505 is a conflict with a T-9 in the database which is also in my database. Since this is an outlier (only one starting with 623) I'd suggest remove it. I could not find the original pic nor the posting date. Search in this forum is a bit flakey so it may not turn up here either.

T-505_conflict_T-9.jpg
 
Did some more research. ChatGPT clearly has no idea:
Q:
Is 623048302 a plausible serial number for a Sansui T-9?
A:
The serial number 623048302 does not align with the typical serial numbering conventions used by Sansui for their products, including the Sansui T-9 tuner.

Sansui serial numbers usually follow a format where the first digit represents the year, the second digit represents the month, and the rest of the digits are unique to the unit.
For instance:
  • 6 in the first position could indicate the year 1976 or 1986, depending on the product's era.
  • 2 in the second position could represent February.
The following digits typically provide the sequence number or other details, but the entire serial number you provided seems longer than what is typically found on Sansui products, which often range from 7 to 8 digits.

Given this, 623048302 does not seem to follow Sansui’s typical serial number format.
Q:
And a T-505?
A:
The serial number 623048302 seems more plausible for a Sansui T-505 than for a T-9, although it still appears somewhat unconventional.

For Sansui products like the T-505, serial numbers typically follow a similar format:
  • 6: The first digit likely represents the year of manufacture (which could be 1976, 1986, or 1996, depending on the model's production period).
  • 2: The second digit usually represents the month (February in this case).
  • The remaining digits provide a unique identifier for that particular unit.
However, the serial number 623048302 is still longer than the usual 7 to 8 digits expected for Sansui products. While the format seems plausible, the length raises questions. It's possible that the extra digits could indicate a later production or a special batch, but without more specific information from Sansui records or documentation, it's difficult to say definitively.

In summary, while 623048302 could be a serial number for a Sansui T-505, the length is somewhat unusual compared to standard Sansui serial numbers.

ROFLOLMAO
 
Did some more harvesting in Belgium:
661,023111193,2dehands.be
AU-117,848090309,2dehands.be
AU-2200,225060059,2dehands.be
AU-222,818091459,2dehands.be
TU-555,240010116,2dehands.be
AU-5500,835040018,2dehands.be
AU-6600,835050246,2dehands.be
AU-666,830070379,2dehands.be
AU-217,038041438,2dehands.be
TU-217,848064667,2dehands.be
G-301,828070505,2dehands.be
QR-500,231090737,2dehands.be
R-410,634018957,2dehands.be
T-80,849090789,2dehands.be
TU-217,028092786,2dehands.be
TU-X111L,610115651,2dehands.be
TU-X317,223398001809,2dehands.be

Found a duplicate in my own database but not in the last one here (661) so I kept it.
 
kw32 harvest

8010,824090133,kleinanzeigen
4900Z,811020710,kleinanzeigen
A-7,441104122,kleinanzeigen
A-770,507070700,kleinanzeigen
AU-217,836100422,kleinanzeigen
AU-9500,213070749,kleinanzeigen
AU-X501,438080326,kleinanzeigen
AV-9000DSP,603070384,kleinanzeigen
BA-F1,219100469,kleinanzeigen
CD-X217,214132002224,kleinanzeigen
CD-X301i,618070298,kleinanzeigen
CD-V1000,508111600,kleinanzeigen
CD-X217,213932000709,kleinanzeigen
CD-X217,214632002910,kleinanzeigen
RG-710,474034894,kleinanzeigen
D-1000,348081481,kleinanzeigen
D-590R,635123661,kleinanzeigen
P-2000,0811161584,kleinanzeigen (no typo !!)
RZ-3000,519070138,kleinanzeigen
SC-3330,259121301,kleinanzeigen
S-U770,70211,kleinanzeigen (same number for left and right)
S-X700,507100082,kleinanzeigen
T-770,507080044,kleinanzeigen
T-7,840120869,kleinanzeigen
T-700,646101655,kleinanzeigen
TU-D33X,646016370,kleinanzeigen
TU-X301i,619051457,kleinanzeigen

the P-2000 is with this strange numbering scheme
P2000.jpg
 
Last edited:
@Wally1955, thanks for posting your serial number. Your QA-5000 was built on assembly line 21 in December 1974. It was the 33 unit off that line that month.

@antpaubarcar I made the change.

@PE9ZZ, As you determined, the serial number for the T-9 is an outlier for that model but fits perfectly for the T-505. In April '83 line 62 produced T-505s and a CLASSIQUE T-550. I'll delete the T-9.

Chat GPT's analysis of Sansui serial numbers gives me hope that it will be a long time before we need to worry about AI taking over the world.

@peterott, We have 19 P-2000s on file. All have non standard serial numbers. Some are 9 digit, some are 10 digit but none have an identifiable date code.

Thanks for all of your efforts!

- Pete
 
I have an erratum for my post from last week. The AU-999 serial belongs to an SC-5300. The AU-999 was a duplicate. The harvest below for WK33 should be correct:
990,826050099,catawiki.com
A-1000,530060649,catawiki.com
A-M9,432040397,catawiki.com
AU-6500,822100379,catawiki.com
AU-6600,835050162,catawiki.com
AU-alpha 607NRAii,609103040,catawiki.com,JDM_T-tag
CD-X701,317092156,catawiki.com
SC-5300,250080143,catawiki.com
SR-838,317071260,catawiki.com,JDM_T-tag
AU-9500,215070492,marktplaats.nl
AU-G33X,617038424,marktplaats.nl
D-105,346062989,marktplaats.nl
D-290,574030720,marktplaats.nl
D-X501,328020948,marktplaats.nl
RZ-3500,550090959,marktplaats.nl
SR-525,325082345,marktplaats.nl
TU-5900,836080133,marktplaats.nl
TU-7900,816030015,marktplaats.nl
TU-D55X,616077625,marktplaats.nl

Dunno why I fücked up. Prolly due the weird filename sorting of my image viewer (nomacs). This "natural sort" (which is anything but) should be punishable by death. I now rename all files with a sequence number (file[C]_[N]). The C is a two-digit number and N is the original filename. Highly annoying but it works.
 
Thanks for catching that. The bulk upload process would not catch that error. It would have been entered into the database as a AU-999. As long as the serial number is 8 or 9 numeric digits, the model name matches a model on the master list and it doesn't conflict with an existing SN, it would upload.

- Pete
 
kw33 harvest:

5900Z,820101672,kleinanzeigen
AU-3900,837010157,kleinanzeigen
AU-X501,621077330,kleinanzeigen
AU-11000A,217060053,kleinanzeigen
AU-D907F,821070044,kleinanzeigen,T-tag_JDM
B-2101,626022954,kleinanzeigen
B-2101,654087223,kleinanzeigen
B-2301,608043823,kleinanzeigen
BA-60,519120061,kleinanzeigen
CD-X311II,04701001079,kleinanzeigen
D-95M,481083611,kleinanzeigen
G-5700,810041429,kleinanzeigen
MAS-1000,2051021658,kleinanzeigen
P-2000,0807163991,kleinanzeigen
P-1100,231015391,kleinanzeigen
P-L50,423030565,kleinanzeigen
QR-6500,212050353,kleinanzeigen
QRX-9001,236110861,kleinanzeigen
RA-500,210102885,kleinanzeigen
RZ-3500,04903005042,kleinanzeigen
RZ-3000,519070138,kleinanzeigen
SIX,222101877,kleinanzeigen
S-X700,507100082,kleinanzeigen
SP-X5U,3546,kleinanzeigen
TU-719,849050138,kleinanzeigen
TU-D55X,607048022,kleinanzeigen
 
The harvest for Allegro's Archiwum for 2019H1 is now complete (attached). 167 serialz. It was a lot of work, maybe I should take a hiatus for awhile.

I now have 3996 serialz in my own upload database...

Another question: what should I do with Blaupunkt/Artech serials? These are valid Sansui serialz and production but seem to be discarded when I post them. AFAIK it is a single tuner and amp (AU/TU-X317 if I recall correctly).
 

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