This is pictures of original keyboard on SAM COUPE computer. This keyboard use membrane similar as ZX Spectrum models. Key matrix in membrane connection is 100% same as on ZX Spectrum48 (only two layers, no extra keys as extend mode,true video...).

http://velesoft.speccy.cz/samcoupe_keyboard-cz.htm



At end of this page is my replacement of this keyboard. It's new PCB designed for connection microswitch buttons from old PC keyboard. PCB is connect with computer with cable. Keyboard contain next additional numeric keyboard, cursors and next extra keys...