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Wonder RAM

Simple ZX Spectrum memory upgrade to partial ZX128 compatibility.

Offers 80kB switched like 128kB in ZX Spectrum 128, so some ZX128 software works on such upgrade. Mostly when need only one extra bank for music.


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Files for download

opis.txt 2.4kB (2001-01-30 11:00)
[pl] Description.
ram80k.gif 25.1kB (2001-01-25 21:21)
Schematics made in Eagle.
sch80k.gif 17.9kB (2001-01-25 21:21)
Board view made in Eagle.

See also

4MB RAM upgrade : ZX Spectrum
ZX Spectrum memory upgrade - 4MB RAM (DRAM).
TC2144
Upgrade to 144kB RAM with compatibility to ZX Spectrum 128K.
ZX Spectrum / Timex - To 128K
Upgrade ZX Spectrum 48K to ZX Spectrum 128K compatibility. Also solutions for Timex Computer 2048.

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CPC
4MB RAM
Flash ROM
To 128
Sam Coupé
SAM512
Portfix
YABUS.Z80RTC
Z80JOY
MSX
Mapper 4MB
MSX-2 SVI738
Spectrum
FlashD0
8251
AY
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Dock
Gama 192
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ROM replacer
SamRam
TC2144
To 128K
To +3
Wonder RAM
Z80JOY
ZX 4MB
ZXMUX
Timex
Memory
Timex FDD
YABUS.TF
YABUS.TF3
TI-of-TTL
ZX81
Memory

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© 2009-12-28 21:50 Jarek Adamski, http://8bit.yarek.pl