Tung Sol have got some what of a reputation for being one of the best modern production tubes. Often described as transparent and smooth, they've got great reliability and tone. Made in the same factory as EHX tubes, they do have a different design (they're not just rebrands!) Their 12AX7 is particularly excellent.
Tung Sol Tubes & Valves
Tung Sol Tung Sol 12AX7 Tube
£31.00
Tung Sol Tung Sol EL84 Tube
£28.00 - £55.00
Tung Sol Tung Sol 6EU7 Tube
£31.00
Tung Sol Tung Sol EL34B Tube
£42.00 - £79.00
Tung Sol Tung Sol 12AT7W Tube
£21.00