I have just aquired a Velleman VAA-70 Mk II amplifier. I am trying to find out the correct input tubes for this amplifier. I originally thought 6GH8A or 7199s but the installed tubes (with no labeling) do not test as either on a tube tester.
I searched all over the net and only 1 amplifier on a Netherlands EBay was the amp I have.
I have ordered new JJ EL34s for the amp but want to replace the input tubes also.
Anyone know the correct tubes?