Cray 3 Supercomputer PCB Photomask for Board AB-1 Layer 2 For Sale
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Cray 3 Supercomputer PCB Photomask for Board AB-1 Layer 2
Price: US $171.60
This is one photomask plate that was used to make circuit boards for the CRAY 3 supercomputer. Many of the circuit boards had 8 layers so there are 8 photomasks per circuit board. This sale is for Circuit board AB-1 Layer 2. This is marked with 7-17-91 as date. This mask is 6 inches X 6 inches.
