I recently performed the speedball upgrade to a fully functioning stock crack (All voltages checked). After the upgrade, everything checked out fine (voltages and resistances were within normal variances). Everything sounds great!
one thing I've noticed is that after it's been on a whlie, it is VERY hot to the touch. The transformer in particular is almost too hot to touch. I don't know that I could tell you if this was happening before or not. I might just have now noticed it. Is this normal?
I've been listening to it with no complaints for several hours each day.
-BJK