zx81 kit technical support
Each kit contains all the necessary parts, including keyboard, case, printed circuit board, resistors, capacitors, connectors, integrated circuits, power supply, cables etc. When completed the computer can be used on UHF Channel 33 of any Black & White or Color TV. It is possible to use the computer on UK (50 hertz) and US (60 hertz) televisions by setting a ‘jumper’ on the circuit board. The kits do not include a manual, so have a look at Books before you order.
Assembly Instructions
Online version of the instructions
Scans of the original assembly instructions (print these off before you build!)
Front cover
Pages 1 2 3 4 5 6 7
Circuit diagram
Circuit diagram
Online version of the instructions
Scans of the original assembly instructions (print these off before you build!)
Front cover
Pages 1 2 3 4 5 6 7
Circuit diagram
Circuit diagram
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