hi there, just an update. Electronize is around (in a fashion) although they don't advertise - Dave Mainprize, the owner of Electronize, is still running the Company. Although they aren't producing the 30 amp speed controller
, I am lead to believe they are still doing the 43X which is a 15 amp one. How you go about purchasing I am unsure - however - if you do a web search you can come up with his telephone number/address.