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MPSU01 MPSU51

Started by sigma7, September 27, 2023, 01:27:00 PM

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sigma7

The Lisa uses the MPSU01 and MPSU51 transistors in multiple places, including:


  • I/O Board to drive the speaker
  • Twiggy Digital Board

Possible modern substitutes include 2SA1593 and 2SC4135, but note the pinout of these parts is not the same as the MPS parts.
Warning: Memory errors found. ECC non-functional. Verify comments if accuracy is important to you.