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Sansui Serial Number Database Update

AU-999 021080376
Details (as never moded until restoring and improving it):
- 2SA640 on all preamp boards
- CDC8002/9002 / XA495 on driver boards
- Subsonic filter present (version with 2 signal wires)
- Crowbar circuit present at speaker outputs
 
I have AU-111 with SN: 37110051 does it mean that it is produced January 71? There are some information that they were produced between 1964 and 1969 and others that they were produced between 1964 and 1971?
 
Oops
QRX-9001, 237020747
View attachment 3156364

That's much better. Thanks

Should my serial number match one already on the list?

It might might match one that's already been reported. I can tell you more if you post the model and serial number.

I have AU-111 with SN: 37110051 does it mean that it is produced January 71? There are some information that they were produced between 1964 and 1969 and others that they were produced between 1964 and 1971?

That's an 8 digit serial number. The second digit 7 is the year. It was built in November '67. That should clear up the mystery. It's already on file in the database. It was for sale on Yahoo Japan in July '22.

- Pete
 
That's much better. Thanks



It might might match one that's already been reported. I can tell you more if you post the model and serial number.



That's an 8 digit serial number. The second digit 7 is the year. It was built in November '67. That should clear up the mystery. It's already on file in the database. It was for sale on Yahoo Japan in July '22.

- Pete
Thank you very much Pete
 
I have:
Sansui 5050 857041421
SAnsui G-7000 858041045

Is there a preferred serial number window or grouping for a 9090db?
 
Last edited:
Thanks Scott!

I have:
Sansui 5050 857041421
SAnsui G-7000 858041045

Is there a preferred serial number window or grouping for a 9090db?
Thanks for posting your serial numbers but in the future please use this format when posting serial numbers:
5050,857041421,Radiosky
G-7000,858041045,Radiosky
It makes it easier for me to upload the serial numbers into the database. Last month I processed 632 serial numbers. Using this format is a BIG time saver for me.

- Pete
 
Radiosky, I'm not sure what you mean by a "preferred window or grouping" for the 9090DB. You can post them here. There is also a 9090DB thread that tracks the production changes made during the production of these great receivers.

- Pete
 
Pete,
Thanks much for the clarification on the correct format for submitted Sansui serial numbers!
Yes, you received and answered the questions on the production changes thread that I had on 9090DB serial numbers and some of the various updates Sansui performed.
I was seeking an insight into when the black ribbon cable and the change in the bias circuit on the driver board may have occurred.
I appreciate all the work and effort this requires.
All the Best!
 
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