Could you post the two schematics up Rob? [EDIT: The two schematics I was refering too as regards HT differences were the Vibrochamp AA764 and the Bronco AB764, if they have made a mistake with the HT voltage on the latter then they have made a mistake on all the voltages in the schematic, I am reading AA764 OPV = 6V6gt, ac into rect = 315v, ht rect cathode = 355 v.
AB764 OPV = 6V6gta, ac into rect = 365v, ht rect cathode 420v.
Lawrence.
AB764 OPV = 6V6gta, ac into rect = 365v, ht rect cathode 420v.
Lawrence.
