It been nearly 5 years(!) since I posted my original ‘Tour of a Hoppe’s Brain GFA-555 Restoration” A lot has changed since then. That restoration didn’t benefit from a new Hoppe’s Brain BFA-555 input board, or a binding post kit, and it uses an earlier version of my soft-start for the GFA-555. (Which is still … Continue reading Another tour of a Hoppe’s Brain Adcom GFA-555 restoration (5 years later with better technology.)