slave board??

The slave board is totally different, and I know of no way to make the standard PS/2 board act like a slave board.  Why not just use a slave board?

You might be able to "double up" the tach reader signal and send it back to the second locomotive and sync them, I've never tried that.  In theory it should work, but sometimes things that work on paper don't work in the real world.

Hi Joe,

Go with the PS2 slave board kit (II-0001905).  That will allow you to drive four motors spread between two units from a single PS2 board with only one flywheel and tach reader.  The tach reader leads are pretty sensitive to wire length, so I would not expect success if you ran the leads all the way back through an ABA set.  The only thing you'd be giving up in that case with a slave board vs. a full kit is a second sound system.  If you're looking for more sound you could always put two 8ohm speakers in the two units and run them in parallel.

 Thanks guys. I never got any part numbers for a G scale slave kit that I could buy. I would like to have each engine on its own but you have to remove a motor to make room to get a flywheel inside these other brands of trucks. It is a PITA.

 I did not know about the wire length issue on the tach and that maybe a bigger problem? They do sell ABA sets in G scale so the reader should work??

Joe, That is a standard Diesel ABA kit, not a specific G kit.  MTH doesn't identify a G Slave like they do for the G PS-2 Power Supply.  G

 Thanks G.

I forgot that the G scale DIESELS use regular boards.

I've heard that G scale Triplex's need choke's for their slave board. I wonder how they work with their long tethers too?

Maybe they boost the signal somehow on the longer tach wire runs for the G scale ABA diesel ones?

Hi Joe,

The slave boards don't have a connection to the tach leads.  The motor wires are paralleled from the two motors in the led unit and are run back to the slave board.  (FYI, the motor wires should be twisted over long runs)  The slave board uses the PWM power signal on the motor wires to drive FET's on the slave broad, which in turn drives the motors in the slave A-unit.  That's how they get away from having long runs on the tach signal.  They simply don't run tach wires back to the slave board.

 Thanks again Dave!!