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S > SINCLAIR  > ZX SPECTRUM +2   


Sinclair
ZX SPECTRUM +2

The Sinclair Spectrum +2 was the first Sinclair computer made by Amstrad after they bought the rights of the Sinclair computers products. Thus, it is not suprising that the Spectrum +2 is very similar in shape and functionality to the Amstrad CPC-464. It was a kind of mix between the Spectrum 128 and the CPC-464 !

Even though it used several features of the CPC-464, such as the built-in tape recorder and a good full-stroke keyboard (at last!), it is above all an improved Spectrum 128. Thus, the sound chip used is still the well-known Yamaha AY-3-8912 which is the sound chip of the MSX computers, Oric computers,Atari ST series) and many other computers of the 80’s. It was the most popular sound chip at the time.

As on the Spectrum 128, two BASIC versions were implemented : the 48k BASIC to remain compatible with the original Sinclair Spectrum, and the 128k BASIC which was already introduced with the Spectrum 128. There was still a calculator mode in the start-menu but the « Tape tester » option of the 128 had been removed since the tape-recorder was built-in.
As with the other 128k models, and due to the limitations of the Z80 CPU which can only address 65536 bytes, the 128kb RAM was not directly usable (unless with bank-switching routines), but could be used as a RAM disk.

There were several models of the Spectrum +2 : the Spectrum +2 (grey case) which had a motherboard nearly identical to that of the 128, and the Spectrum +2A and +2B (black case) which were simply Spectrum +3 computers with a tape-recorder instead of the disk drive. It means that their motherboards were quite similar to that of the +3. The difference between the +2A and +2B was mainly due to a move in production from Hong Kong to Taiwan.
Note that the first ROMs developed by Amstrad for the +2 model caused compatibility problems with the old Spectrum software, so they changed a few things in later ROMs.


When Amstrad conceived the +2A/B and the +3 they redesigned the motherboard and made some internal changes on the bus. They also removed the keypad scanning routines of the Spectrum 128 and +2 (remember the keypad sold with the Spanish Spectrum 128k ?).

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I own a reasonably mint +2(grey) same as the one I owned back in 1986 I have all my old games plus many more I got cheaper in the 90''s and will continue to use it I got a lovely scart lead and a refurbed Quickshot 1 joystick plus the joystick converters for both ports(a must) I do have an SJS1 joystick but keeping that intact as they snap easily as most of you will remember. The built in cassette deck worked fine back then and does now, I haven''t had to twiddle the Azymuth screw as yet like I did back in the day but I think that was more down to recording methods rather than any fault of the tape head. I''m prepared to change the tape drive belt if it were to perish and snap there isn''t much to worry about as far as repairs go. These are solid machines considering the fun people made of companies like Amstrad same goes for Sinclair. As long as you use them as intended they last forever :) I couldn''t live without mine it''s like my childhood never left me

          
Friday 7th August 2015
miles (essex/uk)

Selling a boxed black spectrum +2 at the moment on ebay, as well as a ZX81 :) http://pages.ebay.com/link/?nav$item.view$alt$web$id$321657454426

          
Tuesday 3rd February 2015
God

Selling a boxed black spectrum +2 at the moment on ebay, as well as a ZX81 :) http://pages.ebay.com/link/?nav$item.view$alt$web$id$321657454426

          
Tuesday 3rd February 2015
God

 

NAME  ZX SPECTRUM +2
MANUFACTURER  Sinclair
TYPE  Home Computer
ORIGIN  United Kingdom
YEAR  1986
BUILT IN LANGUAGE  Sinclair Basic 48k (compatibility mode) and Sinclair Basic 128k
KEYBOARD  Full-stroke keyboard, 58 keys
same layout as the ZX Spectrum+
CPU  Zilog Z80 A
SPEED  3.5469 MHz
RAM  128 kb (8 x 16k banks)
ROM  Spectrum +2 : 32 kb
Spectrum +2A/B : 64k
TEXT MODES  32 x 24
GRAPHIC MODES  256 x 192
COLORS  8 with two tones each (normal and bright)
SOUND  3 channels, 8 octaves (Yamaha AY-3-8912)
SIZE / WEIGHT  44 x 17,5 x 5,5 cm / 1,525 kg
I/O PORTS  UHF PAL TV port, Serial interface (RS232) port, Parallel Printer port (8 bit), Auxiliary interface port, RGB Monitor (and PERITEL TV) port, MIDI output port, Two Joystick ports, Tape/Audio Out, Expansion I/O port (full Z80 bus)
BUILT IN MEDIA  Tape Recorder
POWER SUPPLY  External PSU
Spectrum +2 = 9v DC, 2.1A (centre polarity = -ve)
Spectrum +2A/B = 5V @ 2A, +12V @ 200mA, -12V @ 50mA (Spectrum+3 PSU can be used)
PRICE  £200 (UK, 1986)
242 (France, january 1987)


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