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Unlike the +2A the Spectrum +2B motherboard (AMSTRAD part number Z70833) does not have provision for floppy disk controller circuitry so cannot be assembled as a +3B. The +3B motherboard is Amstrad part number Z70835.
==LinksNotes==
* From and Amstrad CPC user's point of view, the ZX Spectrum is well known for being the source of [[Speccy Port|Speccy Ports]].* The Spectrum +2 case design is comparable to the CPC464's case design because of the internal datacorder. The Spectrum +3 case design is comparable to the CPC6128's case design because of the internal disc drive. The CPC464 and CPC6128 came before these Spectrum's, so it is clear Amstrad used their knowledge and experience to alter the Spectrum design in this way.
[[Category: Non CPC Computers| ]][[Category:Amstrad Products|*]][[Category:CPC History]]
