LM311 Voltage Comparator

Spec Sheet
LM311%20NS%20real%20NTI%20a

National Semi

From a photo of a real NTI Apple-1 ACI card.
Old NS logo, ‘441 date code
Total # on board: 1.

LM311%20Intersil%20real%20NTI%20b

Intersil

From a photo of another real NTI Apple-1 ACI card.
7620 date code.
Total # on board: 1.

LM311%20Mot%20real%20SCC

Motorola

MLM311P1.  From a photo of a real SCC Apple-1 ACI card.
Total # on board: 1.

LM311%20NS%20434

National Semi

Old NS logo, ‘434 date code.  Going on my replica.

LM311%20Mot%207834

Motorola

MLM311P1.  7834 date code.