New-to-me engine! Lionel FT diesel 6-38232 from the Rock Island freight set with “rail sounds RTR”. I am very happy with it except for one thing. The loco starts moving as soon as the sound starts, and the sound cuts off as soon as the engine stops.
I’d like something like the sound starting at 7 volts, and the loco starting to move at 9 volts (just pulled voltages out of thin air to illustrate the point) so that I can start and stop the engine without the sound cutting off. Is there an easy way to accomplish this? I’m thinking along the lines of diodes in the motor wires to drop the voltage to the motors, is that possible/will it achieve the desired effect?