My VT200 has been retubed with EH KT88 and EH 6922
No problem detected so far (more than 500 Hours of use)
This choice has been done because the KT88 looks more reliable than 6550
ARCL60
No problem detected so far (more than 500 Hours of use)
This choice has been done because the KT88 looks more reliable than 6550
ARCL60