Kato 10-173 651系 'Super Hitachi'
So, you have just purchaed Kato 10-173 651系 (651-series) “Super Hitachi”, and want to know how to convert it to DCC. I’ve just begun this process myself; here is part one (of many!) of my report.
The 651系 is factory-fitted with interior lighting, a nice touch. But, being bulbs, those lights have to go. For one, they draw a ton of current—55mA/bulb @ 9 bulbs = almost half an ampere!—which limits the number of trains that my Digitrax Zephyr can drive simultaneously from two to one. For another, bulbs get hot when powered by AC, and DCC is AC. Some people have reported that Kato’s bulb-based interior lights cause meltdowns when run on DCC. I don’t have a link, because I think this claim is largely apocryphal, but Kato nevertheless cautions against using their bulb kits with DCC. Or at least they did until they discontinued those sets. Anyway, Kato’s LED interior lighting kits aren’t compatible with the 651系. You’ll see why below. This means we’re going to have to improvise something new if we want to run out 651系 on DCC.