ZX Spectrum 16K/48K: Difference between revisions

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Didn't meet FCC standards.
Didn't meet FCC standards.


[[Timex 2000 series|Timex TS2068] was made instead].
[[Timex 2000 series|Timex TS2068]] was made instead.


== Software ==
== Software ==

Revision as of 22:20, 7 April 2014

Infobox: ZX Spectrum 16K/48K
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 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

Spectrum+

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 if using Saga ULA.

External links