Apple-1 Related Parts

Signetics 2504V/1404A 1K-Bit Dynamic Shift Register

Spec Sheet
2504V%20Sig%20real%20pre NTI%20A1

Signetics

From a picture of a real pre-NTI Apple 1.
Vertical labeling, gray plastic, block “S” logo.
7620 date code.
Total on board: 7.

2504V%20Sig%20real%20NTI%20A1

Signetics

From a picture of a real NTI Apple 1.
Vertical labeling, block “S” logo.
Total on board: 7.

2504V%20Sig%207620

Signetics

Vertical labeling, gray plastic, block “S” logo.
Exact date code and labeling match of the part on a real pre-NTI Apple-1.  Unused.

2504V%20Sig%207632

Signetics

Exact date code match of the part on a real NTI Apple-1. Red paint above date code removed.

2504V%20Sig%207622

Signetics

Vertical labeling, gray plastic, 7622 date code.

2504V%20Sig%2071%2072%2073

Signetics

Vertical labeling, gray plastic, ’71, ’72, ’73 date codes.