1.3mm is the inner pin/tip size, 3.5mm is the outer barrel/ring size and 10mm is the length of the jack.
If you search for 3.5mm tablet charger on eBay or Amazon you should find something suitable, just make sure it is 2A and 5v (it should be).
GPD Win, GPD XD 64gb, PlayGo, RS-90, 3DS XL, DSi XL, GBA SP, GBBC Clone, Gameboy Pocket c/w screen mod, PSP Go
Medion Erazer, Toshiba Z20t, Dell Mini 9, Psion 5MX
Tons of other old laptops and tablets.....