I have a PIKO G scale starter set and I've seen the power supply for sale separately as a G scale and HO scale power supply.  Before I ruin my HO scale engine, I'd like someone to tell me its okay to use it. 

Specs are as follows: TRANSFORMER POWER PACK #KU4B-140-0850D.  IMPUT 120V AC / 60Hz. OUTPUT 14V DC / 850mA. CONTROLLER 8.833030.13 IMPUT 20V DC MAX. OUTPUT 0-20 V DC.

The PIKO transformer will work fine with HO trains, just don't turn it all the way up to the full 20V output. Otherwise you'll either hit "Warp 9.5" and go airborn on a curve or burn out all your lights.

Len

Thanks - don't want to do either!