[Amps] 4 x Glass Glowing tubes

[Máximo EA1DDO_HK1H]

Hi all,

But, AB1 or AB2 I guess gets more Tx quality than class B, in SSB, isn´t it?

2 x GU81 Grounded Grid;  http://f5ssk.blogspot.com/2011/06/2-gu-81-grilles-la-masse.html

2 x GU81M ;  http://liamp.org/?p=85

What you think about them?

Thanks

73, Maximo