Microbee-MSPP Photo Gallery

Photos of Microbee and other vintage Australian microcomputers

Last additions
Completed_Bottom_View.jpg
 2013 Refurb - Completed and assembled (bottom view)316 viewsAll done, ready for the case againDec 28, 2013
Clockboard.jpg
 2013 Refurb - Completed Clockboard (top view)121 viewsHeaders and cable replacedDec 28, 2013
Clockboard_Mods.jpg
 2013 Refurb - Completed Clockboard (bottom view)132 viewsCompleted mods for change to Microbee IC specsDec 28, 2013
Clean_Coreboard.jpg
 2013 Refurb - Coreboard143 viewsIC sockets and headers removed. Ready for replacementsDec 28, 2013
256TC_Motherboard.jpg
 256TC Motherboard257 viewsNov 19, 2013
256TC_ser_211184.jpg
 256TC Serial#211184330 viewsMicroBee 256TC serial#211184 on the test bench, version 1.20 boot rom.
Machine is to be refurbished with new floppy drives, and a new case top.Nov 19, 2013
256TC_Battery_damage.JPG
 256TC damage in Battery area486 viewsSome minor track damage in the Battery area on the motherboard.
Looks physical rather than chemical damage.
Battery appears to have been removed before any leakage!Nov 19, 2013
Dream_PS2_prototype.jpg
 prototype PSU for Dream 6800/68025845 viewshome made PCB with +5V 3A, -5V 1A, 12V 1A regulators. +5V uses 2576T-ADJ. tested on bench with 2A load with no signs of overheating. standard 78xx for the other voltages.
new version will have additional -12V with only slightly larger PCB.Aug 31, 2013
Dreamkbd4.jpg
 Dream 6800/6802 hex keypad PCB design704 viewskeyboard can use vintage keypad from original, or individual cherry mx key switches. optionally cut off speaker and socket half for a smaller PCB. optional position for Reset and Fn keys. also can be wired for Fn-Reset to prevent accidental Reset. considering more key switch type options.Aug 31, 2013
dreamclk2.jpg
 6875 substitute clock PCB design568 viewsnot the same as the version in EA Aug '79. completed but untestedAug 31, 2013
dreamps2_pcb.jpg
 Dream 6800/6802 Power Supply PCB design543 viewsthis one has +5V 3A, +12V 1A, -5V 1A, -12V 1A.
older prototype without -12V completed and tested.
artwork completed.Aug 31, 2013
dream682_pcb.jpg
 Dream 6800/6802 PCB design1016 viewsdesign can accommodate 6800/6802, 2708/2716/2732, 6875/74123/substitute clock and all known options and fixes from numerous Dreamer and EA articles. artwork completed but untested.
No hi-res option without hacking.Aug 31, 2013
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