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Sinclair calculator

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Sinclair calculator for sale on Ireland's largest auction and classifieds sites

Home / Scientific Collectables / Sinclair calculator refurbished & used for sale | For Sale UK
Sinclair sovereign calculator - sinclair,

Sinclair sovereign calculator - sinclair,

£78.70 · Buy It Now

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Vintage sinclair scientific - vintage,

Vintage sinclair scientific - vintage,

£16.15 · Buy It Now

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Vintage sinclair scientific - vintage,

Vintage sinclair scientific - vintage,

£134.50 · Buy It Now

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Vintage sinclair oxford 100 - oxford,

Vintage sinclair oxford 100 - oxford,

£21.50 · Buy It Now

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Sinclair cambridge memory - sinclair,

Sinclair cambridge memory - sinclair,

£25.00 · Buy It Now

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Sinclair spectrum 48k - zx,

Sinclair spectrum 48k - zx,

£49.99 · Buy It Now

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Sinclair spectrum plus 2 - sinclair,

Sinclair spectrum plus 2 - sinclair,

£135.89 · Buy It Now

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Sinclair computer vintage - sinclair, ql

Sinclair computer vintage - sinclair, ql

£125.50 · Buy It Now

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Sinclair cambridge universal - sinclair,

Sinclair cambridge universal - sinclair,

£24.99 · Buy It Now

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Sinclair spectrum 48k - sinclair, zx

Sinclair spectrum 48k - sinclair, zx

£24.99 · Buy It Now

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Vtg sinclair sovereign 1976 - sinclair,

Vtg sinclair sovereign 1976 - sinclair,

£50.03 · Buy It Now

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1976 working sinclair - working,

1976 working sinclair - working,

£156.70 · Buy It Now

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Sinclair cambridge calculator - sinclair,

Sinclair cambridge calculator - sinclair,

£42.30 · Buy It Now

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Vintage sinclair cambridge - sinclair,

Vintage sinclair cambridge - sinclair,

£59.95 · Buy It Now

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Sinclair oxford 200 calculator - oxford,

Sinclair oxford 200 calculator - oxford,

£21.50 · Buy It Now

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Sinclair cambridge scientific - sinclair,

Sinclair cambridge scientific - sinclair,

£52.70 · Buy It Now

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Sinclair cambridge memory - sinclair,

Sinclair cambridge memory - sinclair,

£39.99 · Buy It Now

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Sinclair spectrum 128k plus - sinclair,

Sinclair spectrum 128k plus - sinclair,

£104.69 · Buy It Now

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Sinclair zx81 computer - zx81,

Sinclair zx81 computer - zx81,

£78.99 · Buy It Now

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Vintage sinclair cambridge - vintage,

Vintage sinclair cambridge - vintage,

£19.99 · Buy It Now

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Sinclair cambridge electronic - cambridge,

Sinclair cambridge electronic - cambridge,

£15.00 · Buy It Now

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Sinclair spectrum 1984 - 1984, with

Sinclair spectrum 1984 - 1984, with

£69.99 · Buy It Now

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Sinclair sovereign led - sinclair,

Sinclair sovereign led - sinclair,

£99.50 · Buy It Now

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Working sinclair spectrum - zx,

Working sinclair spectrum - zx,

£39.99 · Buy It Now

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Rare sinclair cambridge - rare,

Rare sinclair cambridge - rare,

£68.30 · Buy It Now

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Sinclair spectrum 128k plus - zx,

Sinclair spectrum 128k plus - zx,

£104.69 · Buy It Now

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Sinclair spectrum 128k 2 - zx,

Sinclair spectrum 128k 2 - zx,

£69.99 · Buy It Now

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Vintage sinclair scientific - vintage,

Vintage sinclair scientific - vintage,

£73.50 · Buy It Now

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Rare sinclair cambridge - rare,

Rare sinclair cambridge - rare,

£57.90 · Buy It Now

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Sinclair spectrum personal - zx,

Sinclair spectrum personal - zx,

£94.30 · Buy It Now

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Collector sinclair zx - collector's,

Collector sinclair zx - collector's,

£295.00 · Buy It Now

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Sinclair spectrum vintage - sinclair,

Sinclair spectrum vintage - sinclair,

£89.99 · Buy It Now

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Sinclair spectrum 3 - sinclair, +3

Sinclair spectrum 3 - sinclair, +3

£151.50 · Buy It Now

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Vintage sinclaire cambridge - sinclaire,

Vintage sinclaire cambridge - sinclaire,

£55.00 · Buy It Now

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Sinclair spectrum plus 2 - spectrum, +2

Sinclair spectrum plus 2 - spectrum, +2

£120.29 · Buy It Now

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Sinclair computer 3d - sinclair, ql

Sinclair computer 3d - sinclair, ql

£7.49 · Buy It Now

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3368 vintage sinclair - vintage,

3368 vintage sinclair - vintage,

£39.96 · Buy It Now

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Sinclair scientific calculator - sinclair,

Sinclair scientific calculator - sinclair,

£83.90 · Buy It Now

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Sinclair spectrum 128k plus - sinclair,

Sinclair spectrum 128k plus - sinclair,

£129.99 · Buy It Now

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Vintage sinclair zx80 home - sinclair,

Vintage sinclair zx80 home - sinclair,

£322.90 · Buy It Now

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Original sinclair scientific - original,

Original sinclair scientific - original,

£155.66 · Buy It Now

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Vintage sinclair oxford - vintage,

Vintage sinclair oxford - vintage,

£35.00 · Buy It Now

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Vintage sinclair oxford 300 - oxford,

Vintage sinclair oxford 300 - oxford,

£26.70 · Buy It Now

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Sinclair scientific - sinclair,

Sinclair scientific - sinclair,

£40.00 · Buy It Now

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1981 sinclair zx81 personal - zx81,

1981 sinclair zx81 personal - zx81,

£99.99 · Buy It Now

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Sinclair cambridge scientific - sinclair,

Sinclair cambridge scientific - sinclair,

£52.70 · Buy It Now

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Vintage sinclair oxford 100 - sinclair,

Vintage sinclair oxford 100 - sinclair,

£49.99 · Buy It Now

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Sinclair spectrum mug - spectrum,

Sinclair spectrum mug - spectrum,

£6.95 · Buy It Now

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Sinclair spectrum 48k - zx,

Sinclair spectrum 48k - zx,

£65.18 · Buy It Now

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Sinclair spectrum plus - sinclair,

Sinclair spectrum plus - sinclair,

£120.29 · Buy It Now

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Sinclair zx81 manual computer - sinclair,

Sinclair zx81 manual computer - sinclair,

£9.99 · Buy It Now

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Smith computer program - smith, data

Smith computer program - smith, data

£24.99 · Buy It Now

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Atic atac sinclair - (b), zx

Atic atac sinclair - (b), zx

£9.48 · Buy It Now

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The boston computer society - the,

The boston computer society - the,

£6.65 · Buy It Now

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Timex sinclair 1000 vintage - timex,

Timex sinclair 1000 vintage - timex,

£94.30 · Buy It Now

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Sinclair spectrum 128k - sinclair,

Sinclair spectrum 128k - sinclair,

£168.00 · Buy It Now

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Sinclair spectrum 2a - zx, +3,

Sinclair spectrum 2a - zx, +3,

£15.99 · Buy It Now

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The boston computer society - the,

The boston computer society - the,

£5.99 · Buy It Now

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Sinclair spectrum and - +3,

Sinclair spectrum and - +3,

£6.79 · Buy It Now

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Sinclair user computer - sinclair,

Sinclair user computer - sinclair,

£26.70 · Buy It Now

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Sinclair sovereign calculator - sinclair,

Sinclair sovereign calculator - sinclair,

£104.69 · Buy It Now

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Vintage sinclair zx81 computer - zx81,

Vintage sinclair zx81 computer - zx81,

£59.99 · Buy It Now

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Sinclair zx81 basic - zx81,

Sinclair zx81 basic - zx81,

£9.48 · Buy It Now

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Alphacom printer for - 32,

Alphacom printer for - 32,

£29.99 · Buy It Now

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Sinclair vinyl decals stickers - decals,

Sinclair vinyl decals stickers - decals,

£1.70 · Buy It Now

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1200 sinclair spectrum - zx,

1200 sinclair spectrum - zx,

£9.99 · Buy It Now

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Sinclair spectrum 128k - spectrum, 48/128k

Sinclair spectrum 128k - spectrum, 48/128k

£10.80 · Buy It Now

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Sinclair spectrum 48k - spectrum,

Sinclair spectrum 48k - spectrum,

£89.99 · Buy It Now

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Sinclair spectrum 16k - sinclair,

Sinclair spectrum 16k - sinclair,

£75.00 · Buy It Now

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Sinclair zx80 zx81 - sinclair, computer

Sinclair zx80 zx81 - sinclair, computer

£4.49 · Buy It Now

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Working recreated sinclair - working, zx

Working recreated sinclair - working, zx

£59.43 · Buy It Now

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Sinclair spectrum 16k - sinclair,

Sinclair spectrum 16k - sinclair,

£148.38 · Buy It Now

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Cambridge z88 portable - z88,

Cambridge z88 portable - z88,

£78.69 · Buy It Now

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Sinclair zx spectrum 128k - ***,

Sinclair zx spectrum 128k - ***,

£99.99 · Buy It Now

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Sinclair spectrum 16k - zx, 48k

Sinclair spectrum 16k - zx, 48k

£4.49 · Buy It Now

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Sinclair vintage oxford - sinclair,

Sinclair vintage oxford - sinclair,

£24.79 · Buy It Now

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Usborne the beginners computer - beginners,

Usborne the beginners computer - beginners,

£7.64 · Buy It Now

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Spectrum pico red ver 128k - red,

Spectrum pico red ver 128k - red,

£33.98 · Buy It Now

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Sinclair spectrum computer - zx,

Sinclair spectrum computer - zx,

£8.99 · Buy It Now

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Sinclair 128k spectrum - sinclair,

Sinclair 128k spectrum - sinclair,

£19.99 · Buy It Now

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Sinclair spectrum 128k - sinclair,

Sinclair spectrum 128k - sinclair,

£17.99 · Buy It Now

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Boxed sinclair zx80 personal - boxed,

Boxed sinclair zx80 personal - boxed,

£425.00 · Buy It Now

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Usborne computer books better - computer,

Usborne computer books better - computer,

£6.99 · Buy It Now

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Vintage 1984 trashman sinclair - vintage,

Vintage 1984 trashman sinclair - vintage,

£7.75 · Buy It Now

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Sabre wulf spectrum - sabre,

Sabre wulf spectrum - sabre,

£8.98 · Buy It Now

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Vintage sinclair 200 - vintage,

Vintage sinclair 200 - vintage,

£26.70 · Buy It Now

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Spectrum pico 128k 48k - pico,

Spectrum pico 128k 48k - pico,

£103.66 · Buy It Now

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Empty box only sinclair - only, ql

Empty box only sinclair - only, ql

£34.99 · Buy It Now

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Empty box including - box,

Empty box including - box,

£45.00 · Buy It Now

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Spectrum pico 128k 48k - pico,

Spectrum pico 128k 48k - pico,

£88.06 · Buy It Now

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Sinclair sovereign calculator - sinclair,

Sinclair sovereign calculator - sinclair,

£645.00 · Buy It Now

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Vintage retro look computer - look,

Vintage retro look computer - look,

£14.99 · Buy It Now

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Wheels fire sinclair - of,

Wheels fire sinclair - of,

£59.99 · Buy It Now

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Sinclair spectrum - sinclair,

Sinclair spectrum - sinclair,

£20.00 · Buy It Now

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Spectrum 128kb computer - +2,

Spectrum 128kb computer - +2,

£311.66 · Buy It Now

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Sinclair zx81 basic - sinclair,

Sinclair zx81 basic - sinclair,

£7.99 · Buy It Now

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📊96 listings · from £1.7 · avg £72.73

Browse 96 sinclair calculator listings currently in our index. Prices range from £1.7 to £645, with an average of £72.73. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about sinclair calculator →

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Everything you need to know about sinclair calculator

Whether you are looking for a brand-new or second-hand sinclair calculator, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £1.7, while premium listings can reach £645 — giving you a wide budget spread to work with. The average price of £72.73 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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