ZX Spectrum 16K/48K: Difference between revisions
(Add link to Planet Sinclair 48K versions page and some blah blahs) |
(Expand) |
||
Line 15: | Line 15: | ||
blah blah [[Rick Dickinson]] | blah blah [[Rick Dickinson]] | ||
==== Rubber Keyboard Model | == ULA == | ||
blah blah [[Richard Altwasser]] | |||
blah blah [[Ferranti]] | |||
blah blah ''The ZX Spectrum ULA'' by [[Chris Smith]]. | |||
blah blah Flash bug, dead cockroach, spider, dot crawl, ULA snow, spurious memory contention. YUV output. Speck of dust. 5C and 6C series. | |||
== [[NTSC Spectrum]] == | |||
Didn't meet FCC standards. | |||
[[Timex 2000 series|Timex TS2068] was made instead]. | |||
== Software == | |||
blah blah [[Nine Tiles Ltd]] | |||
blah blah [[John Grant]], [[Steve Vickers]]. | |||
=== Rubber Keyboard Model === | |||
blah blah [[ZX Interface 1]] & Microdrives | blah blah [[ZX Interface 1]] & Microdrives | ||
=== Plastic Keyboard Model === | |||
[[Spectrum+]] | [[Spectrum+]] | ||
Line 31: | Line 53: | ||
blah blah reuse of faulty memory chips | blah blah reuse of faulty memory chips | ||
=== Issue 1 === | |||
blah blah [[ZX Spectrum 48k ram upgrade]] | blah blah [[ZX Spectrum 48k ram upgrade]] | ||
=== Issue 2 === | |||
blah blah blue keys | blah blah blue keys | ||
blah blah 48K on-board | blah blah 48K on-board | ||
=== Issue 3 === | |||
blah blah new speaker | blah blah new speaker | ||
Line 46: | Line 68: | ||
blah blah Spectrum+. | blah blah Spectrum+. | ||
=== Issue 6 === | |||
blah blah changes for Saga ULA. | blah blah changes for [[Saga ULA]]. | ||
== External links == | == External links == |
Revision as of 22:16, 7 April 2014
Manufacturer | Sinclair Research |
Mfg. volume | appx. 4M units |
CPU | Z80A @ 3.5MHz |
ROM | 16kB |
RAM | 16kB or 48kB |
as pages | flat |
Gfx Res | 256x192 |
Gfx Colours | 15 (2 per 8x8 cell) |
Case Design
blah blah Rick Dickinson
ULA
blah blah Richard Altwasser
blah blah Ferranti
blah blah The ZX Spectrum ULA by Chris Smith.
blah blah Flash bug, dead cockroach, spider, dot crawl, ULA snow, spurious memory contention. YUV output. Speck of dust. 5C and 6C series.
NTSC Spectrum
Didn't meet FCC standards.
[[Timex 2000 series|Timex TS2068] was made instead].
Software
blah blah Nine Tiles Ltd
blah blah John Grant, Steve Vickers.
Rubber Keyboard Model
blah blah ZX Interface 1 & Microdrives
Plastic Keyboard Model
blah blah toastrack & QL
Motherboards
blah blah board issues
blah blah reuse of faulty memory chips
Issue 1
blah blah ZX Spectrum 48k ram upgrade
Issue 2
blah blah blue keys
blah blah 48K on-board
Issue 3
blah blah new speaker
blah blah low power ULA, EAR socket changes causing compatibility problems, 'spider' fix integrated into board.
blah blah Spectrum+.
Issue 6
blah blah changes for Saga ULA.
External links
- ZX Spectrum 16K/48K versions at Planet Sinclair