Samples of the newly tooled Rapido Trains HO General Electric U25B diesel locomotive recently arrived at the Model Railroader offices. Join senior editor Cody Grivno as he points out features on the ...

More than 370 were built from 1939 through 1956. The U25B marked GE’s entry into the domestic road diesel market, and it featured several innovations. It was powered by GE’s 16-cylinder FDL engine ...

Consequently, the port output voltage of ±10 V fs is sensed by U25B and divided by 10 by R72, R73 and R74 to become IVSN with the DVM input range of ±1 V. R72 is adjusted in calibration for the ...