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Single Expansion
Rainbow II
Company
Hertz Elektronik, Germany
Date
1992
Amiga
A2000, A3000, A4000
Interface
Zorro II
Autoconfig ID
2145 / 32
framebuffer
Analog Devices ADV7120 RAMDAC
80 MHz pixel clock
1.5 MB, 30 ns dual-ported video RAM in twelve ZIP sockets
four additional sockets take 0.5 MB for alpha channel
takes 256k×4 VRAM ZIPs
screen modes
768×576×24 (PAL)
768×476×24 (NTSC)
8 bit alpha channel option
15.75 kHz interlaced or 31.5 kHz non-interlaced modes selectable by jumper
notes
video RAM is mounted in the Zorro II address space, ruling out 8MB RAM expansions
if populated to 2 MB, VRAM can be used as system Fast RAM
DB9 output connector
supports 'Sync on Green' (toggled by jumper)
can generate a white test screen for the Video-DAC (activated by jumper)
two EPROM sockets for custom driver software
not compatible with genlocks
the card was first distributed by Ingenieurbüro Helfrich, later by BSC (sold it as R2) and Omega Datentechnik (sold it as R-II)
Photos
front side
back side
Driver / Installation Disk
Rainbow2_Dia-192.dms
RainbowDia v1.92, pictures
515 kB
Rainbow2_Painter.dms
RainbowPainter Junior, pictures
681 kB