Fairchild
From a photo of a real pre-NTI Apple-1.
7410 PC F, black plastic.
7537 date code.
Total # on board: 2 (this chip is at location C6)
Fairchild
From another photo of a real pre-NTI Apple-1.
9N10/7410 PCF, black plastic, 7530 date code. This is also at location C6.
Fairchild
Location B2 of the same Apple-1 as the previous photo. Same part number and date code.
Signetics
Vertical labeling, black plastic, stretched “S” logo, additional S below part number. 7628 date code. Location C6.
Signetics
Vertical labeling, black plastic, block “S” logo, added S. 7343 date code. Location B2.
Fairchild
7410 PC F, black plastic, 7630 date code. On my Mimeo replica at C6.
Fairchild
7410 PC F. 7634 date code.
Fairchild
9N10/7410 PCF, 7512 date code. On my Mimeo replica at B2.
Fairchild
9N10/7410 PCF, black plastic, 7347 date code.
Fairchild
9N10/7410 PCF, black plastic, 7528 date code, close to a date code match.
Signetics
Vertical labeling, black plastic, stretched “S” logo, no added S. 7629 date code, very close to a match.
Signetics
Vertical labeling, stretched “S” logo, added S. 7536 date code.