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SINCLAIR COMPUTERS
In my Collection...



1982
SINCLAIR ZX81
Firmware: 3.25 MHz Zilog Z80A CPU 
8K ROM, 1K RAM externally expandable to 64K (56K usable) 
Display: 24 lines x 32 character text display Monochrome only 
Sound: None 
I/O: Z80 bus, 250 baud cassette interface, UHF television out 
Storage: External cassette recorder 
Books
Computers
Clones
Graphics
Harddisk
Interfaces
Joysticks
Keyboards
Magazines
Memotech
Memory
         Packs
Romcard
Printer
Self Build
Sound
Systems
Text


1982
SINCLAIR TIMEX TS1000
Firmware: 3.25 MHz Zilog Z80A CPU 
8K ROM, 1K RAM externally expandable to 64K (56K usable) 
Display: 24 lines x 32 character text display Monochrome only 
Sound: None 
I/O: Z80 bus, 250 baud cassette interface, UHF television out 
Storage: External cassette recorder 

1983
LARWE MUSUEM UK
SINCLAIR TIMEX TS1500
Manufacturer  Timex / Sinclair
Language Sinclair Basic
CPU Zilog Z80A
Speed 3.25 mhz
RAM 16kb
ROM 8kb
Text 32 x 24 characters
Graphics 64 x 44 B & W
Display Television
Storage Tape cassette

1983
SINCLAIR TIMEX TS2068 
Z80A processor clocked at 3.58Mhz 
AY-3-8912 Sound Chip (same as 128K Spectrums) w/ clock 1.76475Mhz It is attached to different ports compared with the Spectrums, so you don't hear AY music when playing Speccy games (of course, it can be overcome). I mention the clock rate here because it is slightly different from the Spectrum's. 
72K (48K RAM; 24K ROM) which is bankswitched between three internal 64K memory banks called the HOME bank (16K ROM, 48K RAM), the EXROM bank (8K ROM; this one is not completely decoded and can only hold 8K), and the DOCK bank which is empty and is reserved for cartridges. The memory is bankswitched in 8K chunks. 
The BASIC is a superset of 48K Spectrum BASIC (ie - has a few commands added). 
A cartridge dock is located under a door on the right side of the computer. 
Two joystick connectors (not compatible with any Sinclair joysticks) 
RF out, Composite video available on jacks. RGB signals available on rear edge connector. 
Hardware was nicely designed to support DMA and memory bankswitching. 
Video Modes: 256x192 pixel, 32x24 attributes (Spectrum screen) 
256x192 pixel, 32x192 attributes (extended colour mode) 
Dual screen mode where you could flip between two Spectrum screens 
512x192 pixel monochrome 
Power Requirements: DVE power supply, 15 V at 1 Amp DC, and with the outside sleeve of the plug positive and the inside negative. 

1987
SINCLAIR ZX SPECTRUM +3 (MANUFACTURED BY AMSTRAD)
Name Sinclair ZX Spectrum+3 128K
Manufacturer Amstrad plc.
Production 1986, 1987
Price £249,00 (1987,UK)
Built-in language 48K Basic (compatibility), 128K Basic
DOS +3DOS
Keyboard Full-stroke keyboard, 58 keys
Storage device 3 inch floppy disc drive
CPU Zilog Z80A, 3.5469 MHz
RAM 128K (8 pages à 16K)
ROM 64K (4 pages à 16K)
Text modes 32 characters x 24 lines (22 lines available for PRINT)
Graphics 256 x 192 pixel; 1 color attribute per character
Colors 8 colors with 2 steps of brightness
Sound 3 channel AY-3-8912
Size, weight 34.0 x 17.4 x 5.0 cm / 1.65 kg
I/O ports TV, RGB Monitor/Scart/Peritel, tape/audio i/o, parallel printer, serial-1 (RS232, Midi), serial-2 (aux, keypad), 2x joystick, 2nd disc drive, expansion bus (ZX Spectrum compatible)
Power supply 5V 2A, +12V 700 mA, -12V 50 mA

198?
SINCLAIR ZX SPECTRUM 48K CASED IN DK'TRONICS CASE
Firmware: 3.54 MHz Zilog Z80A CPU
48K RAM
Display: 32 x 22 character text display 
256 x 192 pixel resolution 
8 colours 
Sound: 1 channel, 5 octave (16/48K Spectrums) 
I/O: Z80 bus, tape, RF television (All Spectrums) 
External numeric keypad
RS232 - Midi Out, RGB, Joystick
Storage: tape recorder and microdrive
....................................................................................................
The computer, housed inside a DK Tronics case and keyboard
Power supply fitted inside
Interface 1 fitted inside
On/Off power switch fitted
Microdrive (connects to ribbon at side of keyboard)
A wallet of four formatted Microdrive cartridges
Composite video modification
Phono to phono lead to connect to your TV
Bag of spare keys

1988
LARWE MUSUEM UK
SINCLAIR CAMBRIDGE Z88
Power source:  4 x AA Alkaline Cells (MN1500, LR6) providing 20 hours of use; AC Mains adaptor (6.5 v DC), 500 mA, centre positive. 
Weight: 900 g (1.98 lb). 
Dimensions: 294 mm (L) x 210 mm (D) x 23 mm (H) 
Keyboard: QWERTY, 64 keys including INDEX, MENU, and HELP. 
Sound: RS232, connector 9-way 'D' female. 
Storage: Memory cards, unique to Cambridge Z88 (concurrent, 4M Bytes address range). 
Operating Temperature: 0°C to 40°C (32°F to 104°F). 
Processor: CMOS Z80A
Internal Memory: RAM CMOS 32K Bytes, ROM CMOS 128K Bytes
Internal options allow the use of up to 512K RAM and 512K ROM in future machines. 
Memory cards Slots 1, 2, or 3 IM Byte per card maximum 
Slot 3 also programs EPROM cards. 
CMOS RAM: Random Access Memory. Data retained only while machine is powered. 
CMOS EPROM: Erasable, Programmable, Read-Only Memory Data Retention measured in years. Card can be removed from Cambridge Z88 without data loss.


2012
JCWOLFRAM PROJEKTE (GERMAN)
X81 CLONE (AX81 IN AVR) MET SD CARD / WITH 2GB SD CARD
iX-Computer (16 k)
VGA-Monitorkabel (intern in iX auf Video switchable)
Powerset
SD-Card with data
Standard PS2-Keyboard
Original manual (German)
Short startup manual

 


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