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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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 Posted: Thu May 08, 2014 12:23 am Post subject: Unknown ATT Purple ceramic chips |
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Has anyone seen chips like these 6 Western Electric F61461 with the Gold famous AT&T "Bell" logo?
These are very thick ceramic Quad-dips w. 4 rows of gold pins on the bottom and the 1984 telecom circuit board has a VERIZON sticker on it, although Verizon didn't exist then!
I will list some of these in the Sale forum, if anyone posts an interest...
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mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
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| Posted: Thu May 08, 2014 9:18 am Post subject: |
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| DSPs |
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Thu May 08, 2014 2:33 pm Post subject: |
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Thanks.
Do you have a source for info on ATT or Western Electric chips?
ATT, IBM, AMI and HP are notorious for producing custom numbered chips that require research to identify.
I think there is an old thread that discussed ATT IC identification...does anyone recall??
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kosmokrator
Joined: 03 Jul 2008
Posts: 4085
Location: Athens-GR
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| Posted: Thu May 08, 2014 3:03 pm Post subject: |
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very Nice finds...its Dsp's I think too!
the package looks like We 32100 |
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mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
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| Posted: Fri May 09, 2014 11:39 am Post subject: |
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| Look a lot like WE 32100s. And being they're the only complex logic device on the boards, and they're telecom boards, is why i'm guessing DSP. |
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Fri May 09, 2014 4:07 pm Post subject: |
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These F61461's are 1983 dated DSP's. Did WE 32100's exist then?
Why different part numbers if they're the same?
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johnorun
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