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Any link to get more information on this project ?
Quote:
Hello:
I havbe the modified HP71B with full RAM and 4X speed modifications. Would like to speak to others with this never-released unit.
Rick
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Those are aftermarket modfications. There were several people and companies offering such mods commercially, and some 71B owners did the mods themselves.
The speedup is just the typical capacitor value change.
The memory upgrade consists of breaking open memory modules (either HP 4KB modules or CMT 32KB or 64KB modules), and wiring the circut boards into the internal chain.
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So what does "full" memory mean? The Saturn could directly address 512 KB, I believe, at least in the HP48 vintage.