Set of 6 Electro-harmonix 6550 EH Power Tube / valve. Tested from Amped SVT CL
£200
Set of 6 used Electro-harmonix 6550 EH Power Tube - Tube tested with AVO Type 160 tube tester and all pass Complete set for SVT Ampeg plenty of life left Always used as a 6, all the same age and they were matched to begin with
