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IBM 16/4 Token Ring Network Adapter MCA FRU 74F9415 DB9 Used Vintage IBM 16/4 Token Ring Network Adapter for Micro Channel Architecture (MCA) systems, FRU 74F9415 with DB9 connector, ideal for restoring or maintaining classic IBM PS/2 and server hardware; card shows typical signs of age from storage and removal, but is a good candidate…
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IBM – Realtime Interface Co-Processor Multiport2 – used, functional – SN B9156068278
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Vintage IBM FRU 74F945 Circuit Board 1980s Retro Computer Mainboard Vintage IBM system board, Field Replaceable Unit (FRU) catalog number 74F945, likely from IBM industrial control or terminal equipment from early-to-mid 1980s era. This is a historic computing component featuring: (1) Original discrete component construction with multiple IC chips including Sony CXK59286-series RAM chips dated…
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Zettler Relay Output Circuit Board 9LR-047-1 8x AZ859 24V Relay Module Used Industrial relay output PCB module populated with eight Zettler AZ859 series 24 V relays on board code 9LR-047-1, suitable for multi-channel switching of loads in automation or control panels; removed from working equipment and ideal as a spare relay output card or for…
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Zettler Relay Output Circuit Board 9LR-047-1 8x AZ859 24V Relay Module Used Industrial relay output PCB module populated with eight Zettler AZ859 series 24 V relays on board code 9LR-047-1, suitable for multi-channel switching of loads in automation or control panels; removed from working equipment and ideal as a spare relay output card or for…
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Zettler Relay Output Circuit Board 9LR-047-1 8x AZ859 24V Relay Module Used Industrial relay output PCB module populated with eight Zettler AZ859 series 24 V relays on board code 9LR-047-1, suitable for multi-channel switching of loads in automation or control panels; removed from working equipment and ideal as a spare relay output card or for…