What is it? This is a stick-on overlay which can be applied over a ZX81 replacement membrane in the style of ZX80 (4K keywords), ZX80 (8K keywords), ZX81 or TS1000. Optionally available with a ZX81...Read More…
This is a stick-on overlay which can be applied over a ZX81 replacement membrane in the style of ZX80 (4K keywords), ZX80 (8K keywords), ZX81 or TS1000. Optionally available with a ZX81 replacement membrane.
ZX81 replacement membranes are available, but there are no versions for the TS1000. The keywords are slightly different, so you can apply these overlays on top of a ZX81 membrane to get the correct TS1000 keywords.
There are also versions in the colour scheme of the ZX80 for ZX80 clones (such as my Minstrel ZX80 clone). The ZX80 had two versions of BASIC. The later 8K (floating point) BASIC used the same keywords as the ZX81, the earlier 4K (integer only) BASIC used a smaller set in different positions. I have two versions for the ZX80. One with the 4K keywords, and one with the 8K keywords. You can use the ZX80 8K overlay with a ZX81 as the keywords are the same, just the colours are different.
This is a stick-on overlay only which can be applied to a ZX81 replacement membrane. White keys with TS1000 keywords.
This is a stick-on overlay only which can be applied to a ZX81 replacement membrane. Blue keys with ZX80 4K keywords.
This is a stick-on overlay only which can be applied to a ZX81 replacement membrane. Blue keys with ZX80 8K / ZX81 keywords.
This option is a just a modern replacement ZX81 membrane with no overlays just the standard ZX81 artwork.
Note the overlays are just stick on overlays, you need an original or replacement ZX81 keyboard membrane to stick these onto (available as an option).
There is an option to include a perspex baseplate, stick on feet and mounting pillars. This allows a ZX81 shaped board to be mounted and the membrane stuck down. Note the membrane connectors should be mounted on the underside of the board, to allow the membrane tail to be hidden under the board - see photos.
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