Editing List of ZX Spectrum clones (section)

==== Dubna 48K ====
{{Main|Dubna 48K}}
'''Dubna 48K''' (ru: '''Дубна 48К''') was a 1991 [[Soviet Union|Soviet]] clone of the ZX Spectrum home computer, named after the town of [[Dubna]], where it was produced. It used  Zilog Z80 processor clone.<ref>{{Cite web|url=https://k1.spdns.de/Vintage/Sinclair/82/Clones/Russia/Dubna-48K%20(%D0%94%D0%A3%D0%91%D0%9D%D0%90-48K)/|title=Directory: /Vintage/Sinclair/82/Clones/Russia/Dubna-48K (ДУБНА-48K)/}}</ref><ref name=":04">{{Cite web |title=Dubna 48k ROM |url=https://speccy4ever.speccy.org/_DU.htm |website=speccy4ever.speccy.org}}</ref><ref>{{Cite journal |last=Teixeira |first=Luís |url=https://impactum-journals.uc.pt/rppedagogia/article/view/1647-8614_42-3_3/697 |title=Videojogos: Um (novo) média para a educação |journal=Revista Portuguesa de Pedagogia |year=2008 |pages= 37–53|doi=10.14195/1647-8614_42-3_3 }}</ref><ref name=":12">{{Cite web |title=Soviet Digital Electronics Museum -- Dubna 48K -- Дубна 48К -- Коллекция советской цифровой электроники |url=http://www.leningrad.su/museum/show_calc.php?n=327&lang=1&test=0 |website=www.leningrad.su}}</ref><ref>{{Cite web |title=Os 25 anos do 'Speccy' |url=https://www.dn.pt/arquivo/2007/os-25-anos-do-speccy-656642.html |access-date=2022-12-30 |website=www.dn.pt |language=pt-PT}}</ref>
<gallery widths="250" heights="175">
File:Dubna 48k.jpg|Dubna 48K
File:Dubna_48k_outlook.jpg|Dubna 48K mainboard
</gallery>