Sinclair ZX Spectrum +2A Action Pack

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The Sinclair ZX Spectrum +2A was an Amstrad-produced Sinclair machine housed in a black case, replacing the earlier grey colour model Plus 2.

Some early Spectrum +2A that used the Z70830 Spectrum +3 Motherboards have a sound problem, where a resistor was missed off the board, which had the unfortunate effect of channeling the 128K sound through the 48K circuit, creating a high level of distortion.

Internet folklore often has it, that all +2A machines have the fault, but almost all use an entirely different board (270833) which has the fault corrected. It is actually very rare to find a +2A machine with a sound fault, leading people to try and seek out the much rarer +2B needlessly, thought mistakenly by many  to be the only model with the sound fix.

Manufacturer: Amstrad
Date: 1987



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Sinclair ZX Spectrum +2A Action Pack Manuals:

Item Manufacturer Date
A Course in BASIC Programming - ZX80 Operating Manual Science of Cambridge 1980
Technology Research Disk Interface Manual Technology Research Ltd 1984
Servicing Manual for ZX Spectrum Sinclair Research Ltd Jan 1984
Sinclair ZX Spectrum +2 Manual Sinclair 1986
Spectral Manual (East German ZX Spectrum Clone) Hübner Elektronik 1988

Sinclair ZX Spectrum +2A Action Pack Articles:

Item Manufacturer Date
Memories - The Tatung Einstein (1) Unknown
Memories - My History of Computing - From a School Teacher Feb 2009

Magazines RELATED to Sinclair ZX Spectrum +2A Action Pack in our Library

Item Manufacturer Date
Your Computer - June 1982 Jun 1982
Personal Computer World - June 1982 1 Jun 1982
Personal Computer World - October 1982 Oct 1982
Personal Computer World - November 1982 Nov 1982
Personal Computer World - January 1983 Jan 1983
Practical Computing - August 1983 Aug 1983
Acorn User - Christmas 1995 1 Jul 2009
Acorn User - May 1997 15 Jul 2009

Other Systems Related To Sinclair ZX Spectrum +2A Action Pack :

Item Manufacturer Date
Amstrad CPC 6128 Amstrad Unknown
Amstrad CPC 464 Amstrad 1984
Amstrad CPC 464 PPC MP1 Boxed System Amstrad June 1984
Amstrad CPC 664 Amstrad May 1985
Amstrad PCW 8256 Amstrad September 1985
Amstrad PCW 8512 Amstrad November 1985
Amstrad PC1512 DD Amstrad 1986
Amstrad PC1640 DD Amstrad 1986
Amstrad PC1512 SD Amstrad 1986
Amstrad PC1640 HD20 Amstrad 1986
Sinclair ZX Spectrum +2A Amstrad 1987
Amstrad PCW 9512 Amstrad 1987
Amstrad PCW 9512 Amstrad 1987
Sinclair ZX Spectrum +2A (Portuguese) Amstrad 1987
Amstrad PCW 9512+ Amstrad 1987
Amstrad PC2086 S Amstrad 1988
Amstrad ALT-386SX Laptop Computer Amstrad 1988
Amstrad PPC 640D Amstrad 1988
Amstrad PC2086/30 Amstrad 1988
Spanish Amstrad CPC 464 (Schneider Keys & Cassette Deck) Amstrad 1988
Amstrad PC1640 HD30 Amstrad 1988
Amstrad PPC 512D Amstrad 1988
Sinclair ZX Spectrum +2B Amstrad 1989
Amstrad PC2286/40 Amstrad October 1989
Amstrad CPC 464 Plus Amstrad 1990
Amstrad PCW 9256 Amstrad 1990
Amstrad ALT-286 Laptop Computer Amstrad 1990
Amstrad CPC 6128 Plus Amstrad 1990
Amstrad ACL-386SX120 Laptop Amstrad 1991
Amstrad PC4386SX Computer Amstrad 1991
Amstrad ANB-386SX40 Amstrad September 1991
Amstrad 7286 HD40 Amstrad 1993
Amstrad Mega PC 386SX Amstrad 1993

This exhibit has a reference ID of CH50153. Please quote this reference ID in any communication with the Centre for Computing History.

 

Sinclair ZX Spectrum +2A Action Pack

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