06-04-2019, 07:39 AM
i have had no experience of these mods but.... quite apart from the suffering regulator contacts, when the battery is low or load heavy the field current is continuous. At near 3X th original current and so 9x the heat dissipation it is a mystery the field coils survive.
I gather there are mods (diode?) to reduce sparking. Perhaps the original had something wired in underneath. A total resistance much more than double the original will reduce output. Some additonal resistance seems desirable; presumably could tolerate say 4 ohm total. Electromechanical reguators, whether one bobbin or two, have windings which respond to output current and moderate, but in Seven use probably not brought into significant operation.
I gather there are mods (diode?) to reduce sparking. Perhaps the original had something wired in underneath. A total resistance much more than double the original will reduce output. Some additonal resistance seems desirable; presumably could tolerate say 4 ohm total. Electromechanical reguators, whether one bobbin or two, have windings which respond to output current and moderate, but in Seven use probably not brought into significant operation.