
EX-Z3
ƒ/2.6
5.8 mm
1/15
This is actually a core memory board, the largest one I have ever seen (with the smallest cores). There are 36 square patches on this double-sided board, 1.5 megabits in all.
This relates to the close-up in Puzzle 5.

This is actually a core memory board, the largest one I have ever seen (with the smallest cores). There are 36 square patches on this double-sided board, 1.5 megabits in all.
This relates to the close-up in Puzzle 5.
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