Cromemco Z-2D

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Cromemco Z-2D with extensive documentation and master disks. I got it with 2 16k RAM cards, a 4FDC disk controller and a ZPU

This is a stub begun on October 16, 2017.


Cromemco Z2 Ad July 1977

Chassis

CromemcoZ-2D.jpg

BeffyPowerSupply.jpg

PowerSupplyAndBackPlane.jpg


Documentation

Documentation.jpg

Lot's of excellent documentation including schematics for all the boards in the Z-2D system. That blank cover is for Micah SuperBIOS v 2.52

299BDiskDrive.jpg

I don't have an image right now of the dual eight inch floppy disk drives in a Cromemco branded wood case.

Disk masters

EightInchDiskMasters.jpg FiveInchDiskMasters.jpg

Restoration / Testing

Board set

Came with

  • ZPU rev E
  • 2 - 16kz rev C
  • 4FDC rev C

Also

Already have a couple ZPUs and a 4FDC. I just bought a couple 16kz Rev C on ePay.

Power Supply

--Jeffa (talk) 11:27, 17 October 2017 (CDT)

Checked that power transformer taps were correct for my 100 - 125v line voltage

Measured

  • 21.47
  • -21.51
  • 11.11

Specifications

From Z-2 Instruction Manual page 1

  • 15 - 21 @ 15 amps unregulated
  • -15 - -21 @15 amps unregulated
  • 7 - 11 @30 amps unregulated

I'll live with it.

Resources

Cromemco Z-2 at Wikipedia.