MrSlim are you one of the current prototypers? Don't recall...
WRT adapter although it never hurts to have more VA than you need we do not expect the amp to draw more than 0.8A -> 1.0A even with highest support tube heaters (12.6V/6.3V @ 600ma).
You make a good point though in how much headroom does a wallwart rated @ 1A have.. Think its customary for them to be rated at their max continuous
draw, but some makers could cut corners. BTW, My 0.833A one gets barely/normally warm w/my 12.6-300ma heated tubes.
Think waitrob pinged the balanced idea a bit ago... If you are ever going to try it go for a 2.0A+ wallwart
Oh, up to runeight if that XR-2440LED (w/qty 0) appears on BoM (not a bad idea, just have the A/C jack size business to consider). Sachu
- yes a BoM is around for proto PCBs.