I returned the second TA-30 head I received because of the hum. The first went back because it lost power, came back on, then one of the power amp tubes started to glow orange and smoke. I didn't get enough time with the first one to notice the hum but the hum on the second was considerably...
Any update on a fix for this, or anyone else notice this with their TA-30? I ordered one and this reverb hiss/hum was noticable on the US side (in Tweed, H1 and H2) but not on the Vox/British side. It was actually my second TA-30 head - the first one lost power and one of the EL-84 tubes...