74123 Dual Monostable Multivibrator

Spec Sheet
74123%20Fairch%20real%20pre NTI%20A1%20b

Fairchild

From a photo of a real pre-NTI Apple-1.
9N123/74123 PCF, black plastic, small lettering.
7526 date code.
Total # on board: 1.

74123%20Fairch%20real%20pre NTI%20A1%20a

Fairchild

From another photo of a real pre-NTI Apple-1.
74123 PC F, black plastic. 7538 date code.

74123%20Sig%20real%20NTI%20A1

Signetics

From a photo of a real NTI Apple-1.
Vertical labeling, black plastic, stretched “S” logo, additional S below part number. 7627 date code.

74123%20Fairch%207512

Fairchild

9N123/74123 PCF, black plastic, small lettering. 7512 date code. Close date code and exact labeling match to the real Apple-1.

74123%20Fairch%207840

Fairchild

F 74123PC, black plastic. 7840 date code.

74123%20Sig%207647

Signetics

Vertical labeling, black plastic, “CY323” added below part number, no added S. 7647 date code.

74123%20Sig%2072

Signetics

Vertical labeling, gray plastic, old “S” in box logo, no added S. ’72 date code.