Spoke with customer service at Broadway Limited today and if you are not aware, they have developed a "Keep Alive" type device of their own that can be retro-fitted to the units already in the field. No more running over N scale Kato Switches and having the sound turn on or lurching locos from momentary loss of contact. Took them a while but I am grateful!
humm my locos never even twitch when running over kato switches , turnouts what ever ya want to call them. they seem to run just fine even very very creepy crawling speed
Maximum $30.00. Some are less. Probably is a simple capacitor but I'm not in the mood to try to find a dozed different capacitors and select just the right one that fits in an n scale SC70 ACE.