Olivetti 3MB ST506-interface drive?
jules.richardson99 at gmail.com
Sun Mar 13 12:28:10 CDT 2016
Does anyone recall an Olivetti ST506-interface drive with a colossal 3MB
capacity? Apparently a full-height 5.25" unit with 4 heads and two platters.
I'm just curious; I always thought that capacities either equaled or
surpassed the 5MB of Seagate's ST506 after they introduced it, so I was a
bit surprised to hear of a drive with < 5MB.
For context, Acorn apparently used them during development of their
external Winchester units for BBC micros (Acorn SASI board, Adaptec
SASI-ST506 bridge, ST506 drive). Production units that I'm aware of had
either a 10MB or 30MB drive fitted (BASF typically, I think). We're talking
1983, or maybe late '82, so considerably after the introduction of the
original Seagate drive.
The only Olivetti drives I'm finding mention of are a 10MB single-platter
drive and a 20MB dual-platter drive. Acorn had close ties with Olivetti, of
course, so I did wonder if Acorn acquired some pre-production drives - but
it seems like a bit of a leap to go from a 3MB dual-platter prototype to a
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