6820 Parallel Interface Adapter (PIA)

Spec Sheet
6820%20AMI%20real%20pre NTI%20A1%20a

AMI

From a photo of a real pre-NTI Apple-1.
S6820, gray plastic, “L” shaped lettered logo. 7601 date code.
Total # on board: 1.

6820%20AMI%20real%20pre NTI%20A1%20b

AMI

From another photo of a real pre-NTI Apple-1.

6820%20AMI%20real%20NTI%20A1

AMI

From a photo of a real NTI Apple-1.
Same appearance as the pre-NTI version.

6820%20Mot%20real%20proto%20A1%20a

Motorola

From a photo of a real prototype Apple-1.  Ceramic with gold lid.

6820%20AMI%207645DW

AMI

7645 date code, gray plastic, single-line lettered logo.

6820%20Mot%20gray%207548

Motorola

XC6820, 7548 date code, ceramic with gray lid and gold-plated legs.

6820%20Mot%20gold%207601

Motorola

XC6820, 7601 date code, ceramic with gold-plated lid and legs.

6520%20Synertek%207729

Synertek

6520, black plastic, 7729D date code.