RA73 disk drive
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| RA73 | |
| Manufacturer: | DEC | 
|---|---|
| Drive Controller(s): | all SDI controllers | 
| Capacity: | 2,000 Mbytes (formatted) | 
| Total Surfaces: | 21 data, 1 servo | 
| Number of Heads: | 21 data, 1 servo | 
The RA72 disk drive is a Standard Disk Interconnect non-removable-media disk drive from DEC. Unlike almost all the other RA-series drives, it is a compact width - 5.25 inches wide. It has no internal power supply; it gets its power from the host system, or its SA7x enclosure. 
Its capacity was 2,000 Mbytes (formatted). It was internally operated by a microprocessor.
Further reading
- RA7x Disk Drive Service Manual (EK–ORA7X-SM) - not available online
External links
- RA7x/SA7x Pocket Reference Guide (EK–RSA7X–PG–002)

