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Set of programmed PROM’s for Science of Cambridge (Sinclair) MK14
Set of programmed PROM’s for Science of Cambridge (Sinclair) MK14 Set of programmed PROM's for Science of Cambridge (Sinclair)

This listing is for a set of 2x (1 pair) 74S571 PROM's which have been programmed with the MK14 monitor program.

The Microcomputer Kit 14 (MK 14) was Sinclair's (at that time called “Science of Cambridge”) first computer. Based on the National Semiconductor SC/MP processor it was sold as a kit but has been unavailable for decades.

The MK14 was an ideal kit for getting into microprocessor systems and was very popular at the time but is now a rare and much sought after item. Because of this the prices for old units have soared even if one can be found.
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Set of programmed PROM’s for Science of Cambridge (Sinclair) MK14 £17.00 Out of Stock
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Science of Cambridge (Sinclair) MK14 pcb - Revision 0 - SPECIAL PRICE OFFER
Science of Cambridge MK14 bare pcb - Gold Plated

SPECIAL OFFER PRICE (Usual price £46.50)

The Microcomputer Kit 14 (MK 14) was Sinclair’s (at that time called “Science of Cambridge”) first computer. Based on the National Semiconductor SC/MP processor it was sold as a kit but has been unavailable for decades.

The MK14 was an ideal kit for getting into microprocessor systems and was very popular at the time but is now a rare and much sought after item. Because of this the prices for old units have soared even if one can be found.


Keyboard Frame for the JM version of the Science of Cambridge MK14 pcb
Keyboard Frame for our Science of Cambridge MK14 bare pcb

MK14 pcb NOT included

Note that this is a 3D printed item so may need some finishing.

3D printed frame and laminated overlay for our version of the MK14 pcb which is also listed separately.

When using the mechanical key switches this can be used to give the keyboard a similar appearance to the original while retaining the advantage of real switches for reliable operation.