Who has a sinclair scientific programmable?

[EdS2]

Under £30 in October '75 - see two-page advert
https://books.google.co.uk/books?id=w1bp...C&pg=PA264
Price is inclusive of tax and shipping, and there's a 10-day money-back guarantee. (On the downside, Sinclair were often very slow to ship and often launched product and took payment before they had volume production.)

By contrast, the HP-65 cost £490 in July of the previous year. No contest at all in quality, accuracy, features, but Sinclair wins on price by an order of magnitude.
https://books.google.co.uk/books?id=HoZd...QC&pg=PA16