In April 1986, Amstrad acquired Sinclair for 5 million pounds. See [https://youtu.be/rGzqvyKYVVI The Amazing TRUE Story Of How Amstrad Bought Sinclair] by [[ChinnyVision]].
At the time of the Amstrad deal, Sinclair was well advanced with development plans for a new Spectrum micro - the £200 SuperSpectrum. The full details can be found here: [https://sinclairuser.com/051/loki.htm Sinclair User article - June 1986]
=== ZX Spectrum +2 ===
The ''ZX Spectrum +2B'' and ''ZX Spectrum +3B'' were functionally similar in design to the Spectrum +2A and +3. The main electronic differences being simply changes to the generation of the audio output signal to resolve problems with [[Clipping (audio)|clipping]] and the removal of the external tape loading input ("ear" pin).
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.
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