Brunhold
02-16-2007, 10:04 AM
Hello to all casemodders out there!
After my last project, the BRUBCAT (http://thebestcasescenario.com/forum/showthread.php?t=2245), I have decided to start a different casemod. I bought an empty case of a busted Osborne 1 from 1983. "Different" casemod, because I wanted to keep the original look, which means no holes for fans and no lights, but inside modern hardware.
The comparison:
1981:
year of constr.: 1983 (release of first model 1981)
quantities: about 125.000 (1982)
processor: Zilog Z80A, 8-bit
frequency: 4 MHz
RAM: 64 KByte
ROM: 4 KByte
OS: CP/M 2.2
monitor: 5"-Monochrome (black/green)
textmode: 52 x 24; 80 x 25; 128 x 24
keyboard: QWERTZ, number pad, 69 keys
drives: 2 x 5,25" for 102 KByte-disks
interfaces: 1 x IEEE-488, 1 x RS232C, 1 x Centronics, 1 x Modem, 1 x Video, 1 x Battery/Accu-adapter
size/weight: 51(W) x 32,5(D) x 22,5(H) cm / 10,2 Kg
2006:
processor: AMD Sempron 2600+, 32-bit
frequency: 1833 MHz
RAM: 512 MByte
HDD: 160 GB, Samsung
OS: Microsoft Windows XP Professional
monitor: 5"-TFT
resolution: 320 x 234 pixel
grafix: MSI Geforce Ti4200, 8xAGP, 64 MB RAM
keyboard: QWERTZ, number pad, 104 keys
optical drive: DVD-ROM, Pioneer DVD 104s, slot-in, 5,25"
interfaces: 3 x USB, 1 x S-Video, 1 x VGA-Out, 1 x Audio-Out und 1 x Mic-In, 1 x 10/100 Mbit-network
size/weight: 51(W) x 32,5(D) x 22,5(H) cm / 11,5 Kg
The story has its ups and downs, sometimes I have been close to to defenestrate the case, but I finished the mod finally after 6 months.
If my english is incomprehensible, please let me know.
Step 1: The cleaning
I had no chance against over 20 years of smoke and sun, the case has been yellowed on some areas. But the result is alright though.
http://der-bruno.de/Osborne1/Worklog/Reinigung.jpg
http://der-bruno.de/Osborne1/Worklog/Reinigung2.jpg
Step 2: The keyboard-mod
The osborne keyboard has 69 keys, the new one 104, that means work.
http://der-bruno.de/Osborne1/Worklog/TastaturOrig.jpg
http://der-bruno.de/Osborne1/Worklog/Tastenvergleich.jpg
http://der-bruno.de/Osborne1/Worklog/Tastatur1.jpg
http://der-bruno.de/Osborne1/Worklog/Tastatur2.jpg
http://der-bruno.de/Osborne1/Worklog/Tastatur3.jpg
http://der-bruno.de/Osborne1/Worklog/Tastatur4.jpg
http://der-bruno.de/Osborne1/Worklog/TastaturLackiert.jpg
I did not like the red color of the mouse.
http://der-bruno.de/Osborne1/Worklog/Maus.jpg
First problem: The controller needs more space than available.
http://der-bruno.de/Osborne1/Worklog/Tastaturcontrollerpasstnet.jpg
Now everything fits.
http://der-bruno.de/Osborne1/Worklog/Tastaturrueckdeckel.jpg
The original backplate, which held the old keyboard can be used to hold the new one, too.
http://der-bruno.de/Osborne1/Worklog/Tastaturrueckdeckeloriginalhalteplatte.jpg
Detail:
http://der-bruno.de/Osborne1/Worklog/Tastaturkasten2.jpg
Step 3: Teevee
The old 5 inch CRT has been replaced by a TFT.
http://der-bruno.de/Osborne1/Worklog/OsborneCRT.jpg
http://der-bruno.de/Osborne1/Worklog/LCD.jpg
CRTs have a curved front, TFTs are flat, that is why the frame of the Osborne-front has to be modified.
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt0.jpg
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt1.jpg
I did not want do dismantle the TFT. It is hard to find a LCD like that and I have bad memories, because I have killed a LCD long time ago.
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt2.jpg
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt3.jpg
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt4.jpg
Test
http://der-bruno.de/Osborne1/Worklog/LCDTest.jpg
http://der-bruno.de/Osborne1/Worklog/LCDTest2.jpg
After my last project, the BRUBCAT (http://thebestcasescenario.com/forum/showthread.php?t=2245), I have decided to start a different casemod. I bought an empty case of a busted Osborne 1 from 1983. "Different" casemod, because I wanted to keep the original look, which means no holes for fans and no lights, but inside modern hardware.
The comparison:
1981:
year of constr.: 1983 (release of first model 1981)
quantities: about 125.000 (1982)
processor: Zilog Z80A, 8-bit
frequency: 4 MHz
RAM: 64 KByte
ROM: 4 KByte
OS: CP/M 2.2
monitor: 5"-Monochrome (black/green)
textmode: 52 x 24; 80 x 25; 128 x 24
keyboard: QWERTZ, number pad, 69 keys
drives: 2 x 5,25" for 102 KByte-disks
interfaces: 1 x IEEE-488, 1 x RS232C, 1 x Centronics, 1 x Modem, 1 x Video, 1 x Battery/Accu-adapter
size/weight: 51(W) x 32,5(D) x 22,5(H) cm / 10,2 Kg
2006:
processor: AMD Sempron 2600+, 32-bit
frequency: 1833 MHz
RAM: 512 MByte
HDD: 160 GB, Samsung
OS: Microsoft Windows XP Professional
monitor: 5"-TFT
resolution: 320 x 234 pixel
grafix: MSI Geforce Ti4200, 8xAGP, 64 MB RAM
keyboard: QWERTZ, number pad, 104 keys
optical drive: DVD-ROM, Pioneer DVD 104s, slot-in, 5,25"
interfaces: 3 x USB, 1 x S-Video, 1 x VGA-Out, 1 x Audio-Out und 1 x Mic-In, 1 x 10/100 Mbit-network
size/weight: 51(W) x 32,5(D) x 22,5(H) cm / 11,5 Kg
The story has its ups and downs, sometimes I have been close to to defenestrate the case, but I finished the mod finally after 6 months.
If my english is incomprehensible, please let me know.
Step 1: The cleaning
I had no chance against over 20 years of smoke and sun, the case has been yellowed on some areas. But the result is alright though.
http://der-bruno.de/Osborne1/Worklog/Reinigung.jpg
http://der-bruno.de/Osborne1/Worklog/Reinigung2.jpg
Step 2: The keyboard-mod
The osborne keyboard has 69 keys, the new one 104, that means work.
http://der-bruno.de/Osborne1/Worklog/TastaturOrig.jpg
http://der-bruno.de/Osborne1/Worklog/Tastenvergleich.jpg
http://der-bruno.de/Osborne1/Worklog/Tastatur1.jpg
http://der-bruno.de/Osborne1/Worklog/Tastatur2.jpg
http://der-bruno.de/Osborne1/Worklog/Tastatur3.jpg
http://der-bruno.de/Osborne1/Worklog/Tastatur4.jpg
http://der-bruno.de/Osborne1/Worklog/TastaturLackiert.jpg
I did not like the red color of the mouse.
http://der-bruno.de/Osborne1/Worklog/Maus.jpg
First problem: The controller needs more space than available.
http://der-bruno.de/Osborne1/Worklog/Tastaturcontrollerpasstnet.jpg
Now everything fits.
http://der-bruno.de/Osborne1/Worklog/Tastaturrueckdeckel.jpg
The original backplate, which held the old keyboard can be used to hold the new one, too.
http://der-bruno.de/Osborne1/Worklog/Tastaturrueckdeckeloriginalhalteplatte.jpg
Detail:
http://der-bruno.de/Osborne1/Worklog/Tastaturkasten2.jpg
Step 3: Teevee
The old 5 inch CRT has been replaced by a TFT.
http://der-bruno.de/Osborne1/Worklog/OsborneCRT.jpg
http://der-bruno.de/Osborne1/Worklog/LCD.jpg
CRTs have a curved front, TFTs are flat, that is why the frame of the Osborne-front has to be modified.
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt0.jpg
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt1.jpg
I did not want do dismantle the TFT. It is hard to find a LCD like that and I have bad memories, because I have killed a LCD long time ago.
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt2.jpg
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt3.jpg
http://der-bruno.de/Osborne1/Worklog/LCDAusschnitt4.jpg
Test
http://der-bruno.de/Osborne1/Worklog/LCDTest.jpg
http://der-bruno.de/Osborne1/Worklog/LCDTest2.jpg