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Sansui Serial Number Database Update

Thank you Sir! Every serial number is important. That is a very late production 9090DB, March 1978. Should already have all of the factory updates. Enjoy!

- Pete
 
Thanks Much!
Looks in good cosmetic condition. Needs the usual going through. Seems like it was parked and put away.
Made my Day
 
If you get deep enough into it, look and see if the Dolby board has rivets on the pass throughs. I'm trying to figure out at what point in production they eliminated them.

- Pete
 
Check - Will Do
Based on current projects and workload it's likely to be a fall/winter project.
I'm curious about that as well
It's exhibiting some of the usual symptoms.
Faint sound to speakers in particular.
Tuner is receiving am/fm signal OK
Left/Right Balance knob frozen in center position
Lamps out.
I'll be in touch...
 
Thanks guys, they will be in the June report available in early July.

@Marty R, that is a very early unit, December '76. Production started in November '76 and continued until May '78.

- Pete
 
Nice, I did not know that, I did notice that the chassis has a silver finish, everything I’ve seen in images online has what I believe is a cadmium finish. Is there a difference in finish’s?

Thanks for the info.
 
Marty R said:
Nice, I did not know that, I did notice that the chassis has a silver finish, everything I’ve seen in images online has what I believe is a cadmium finish. Is there a difference in finish’s?

Thanks for the info.
Click to expand...
Throughout it's history, Sansui used two different types of plating on their chassis. They went back and forth between silver zinc and yellow zinc. Prior to the 9090, they used mostly yellow zinc. The X0X0 series used silver zinc until the mid production of the 9090DB/8080DB when they switched back to yellow zinc. It's mostly just cosmetic although the yellow zinc may have better anti-corrosion properties.

Texas Blues said:
AU-555A SN: 834090598
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Thank you sir, every serial number helps. Your AU-555A was manufactured on production line 83 in September of 1974. It was the 589th unit off that line that month. Line 83 was producing several different models that month. The AU-101, AU-22, AU-2200 and AU-5500 were all being produced on line 83 in September of '74.

In the future when posting a serial number please use this format: AU-555A,834090598,Texas Blues. I upload hundreds of serial numbers every month. Last month for example, I processed 757 serial numbers. Most were posted in the 2017 Database thread located in the Equipment Database Sub Forum This format allows me to copy and paste them into a list to upload all at once.

- Pete
 
LBPete said:
In the future when posting a serial number please use this format: AU-555A,834090598,Texas Blues. I upload hundreds of serial numbers every month. Last month for example, I processed 757 serial numbers. Most were posted in the 2017 Database thread located in the Equipment Database Sub Forum This format allows me to copy and paste them into a list to upload all at once.
Click to expand...
Roger that. I have a few more to add. TB
 
Hi folks, got recentily a 9090DB with red protection light problem. Ran thought the routine fusible resistors replacement and some pots cleaning and she´s back into business.

9090db-serial.jpeg

Mine is a late production unit, based on LBPete´s notes, it´s January, 1978
- yellow finish chassis
- straight up plastic sleeved RF Power board capacitor
- black ribbon cables at DB board
- blue and white trimmers at driver board

9090DB,828012850,GenesMan
 
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I've got the G-4700 S/N 820023055 in your list that I've owned for roughly 2 years. Does that mean the previous owner before me submitted it here on AK?
 
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