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3 expansions found
- 68040 @ 50 MHz
- this is an overclocked 40 MHz 68040
- originally made for Apple's 25 MHz Macintosh Quadra and Centris models
- a small 5 x 8 cm board which can be installed into any 25 MHz 68040 socket
- tested to work in the A3640's 68040 socket
- tested to work on top of the X-Calibur
- available in different pin orientations - the QuadDobler model number BSW2001004950 installs parallel over the A3640
- CPU extraction tool included
front side
QuadDoubler on A3640, front side
QuadDoubler on A3640, top side
front side
back side
Advert (US)
1995-07
scan doubler
- doubles the horizontal frequency of all 15 kHz screen modes (Hires, Lores, Super-Hires, Euro36), the other modes are passed through
- Super72 can be doubled optionally to 49,24 kHz by setting a jumper, but every second row is displayed only
- supports the AGA chipset
- HD15 VGA connector
Arxon ScanDoubler, front side
Compserv ScanDoubler, front side
Compserv ScanDoubler, back side
Arxon ScanDoubler, back side
Advert (DE)
1994-05
Advert (DE)
1993-06