Apple-1 Texas Instruments 16-Pin Socket Variations
TI closed-border sockets were produced with several very subtle variations, in some cases but not always with different part numbers.
Variation 1 Details
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TI (“point” dotted “i”) logo with no letter.
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Non-textured border, sometimes observed with corner pin numbers.
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Plastic backing.
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Copper/gold-colored legs, tin inlay.
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Part number: C8416-02.
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Date code on package: “A804” (4th week in 1978)?
Variation 2 Details
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Slightly smaller TI (“point” dotted “i”) logo with no letter.
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Non-textured border with or without corner pin numbers.
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Plastic backing.
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Tin-colored legs, gold-colored inlay.
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Note: Corner numbers are visible on some but not all Variation 2 sockets. This seems to be true with other variations too.
Variation 3 Details
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Slightly smaller TI (“point” dotted “i”) logo with no letter.
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Non-textured border, with or without corner pin numbers (“9” and “16” on this one).
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Plastic backing.
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Copper/gold-colored legs and inlay.
Variation 4 Details
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Slightly larger TI (“point” dotted “i”) logo with letter.
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Non-textured border, no pin numbers.
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Plastic backing.
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Copper/gold-colored legs and inlay.
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Part number: C9316-02.
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“A841” date stamp (41st week in 1978)?
Variation 5 Details
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Larger, bold TI (“donut” dotted “i”) logo with no letter.
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Slightly textured border, no pin numbers.
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Plastic backing.
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Tin-colored legs and inlay.
Variation 6 Details
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Larger, bold TI (“donut” dotted “i”) logo with no letter.
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Non-textured border, no pin numbers.
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Paper backing.
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Tin-colored legs and inlay.
Variation 7 Details
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Larger, bold TI (“donut” dotted “i”) logo with no letter.
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Slightly textured border with corner pin numbers.
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Plastic backing.
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Tin-colored legs and inlay.