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Last modified 2026-02-02

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Sinclair ZX Spectrum+3 (By Amstrad)

A picture of Sinclair ZX Spectrum+3 (By Amstrad)

SPECIFICATIONS

GENERAL
Type:8-bit home computer
CPU:Zilog Z80A @ 3.54 MHz
Operating system(s):+3DOS (with ZX+3 BASIC) and CP/M
Spectrum 48K BASIC (Compatibility mode)
Memory:ROM: 64 KB (4*16 KB pages)
RAM: 128 KB (8*16 KB pages)
Power supply:5 VDC and ±12 VDC
Current drain / power consumption:
Dimensions (W*H*D):440*50*174 mm (17.32*1.97*6.85")
Weight:1.6 Kg (3.53 lb)




I/O
Keyboard:Integrated
Graphics: Text:
32*24 characters
Graphics:
256*192 pixels, 8+8 colors
Audio: AY-3-8912
3 channels, 8 octaves
Storage:Built-in 3" floppy drive
External I/O ports / connectors:
RF out:   ?
RGB out:   ?
Printer port:   ?
RS-232C port:   ?
MIDI port:   ?
Joystick ports:   Two ?
Tape I/O:   ?
Disk I/O:   ?
Z80 bus:   ?
AUX interface:   ?
Other:




MISCELLANEOUS
Manufactured:1987-1990 (Discontinued)
Additional info: Due to incompatibility issues, some of the older 48K and
128K software as well as the Microdrive units would not
work on this machine.

This model was marketed by Amstrad which had bought
Sinclair's computer products in 1986

Introduction price 1987 in the UK: £249.00
Related documents:
Modifications and fixes:
Notable "ham" software:
Reviews:
Some options / Accessories:
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