I use a MRC transformer with the walk around controllers. Since moving to command control i no longer need the walk around function. Is there a way to "cheat" this transformer so it always provides the full 18v without having to have the controller connected?
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Per the Instruction Manual for the MRC AH101, full output voltage is 16V and that is what I measure on mine. If 18V is needed the AH101 will not deliver it in my experience. The only way I know to have the transformer turn on at full output voltage is to leave two handheld controllers plugged in with the dial set to maximum voltage.
Crack it open and bypass the entire control system. That's about the only way I know. Transformer in a metal box is as simple as it gets.
I have the Dual Power MRC and found that the start up voltage was way too high for some of my traditional, start set type locomotives -- seems like I was always having to hold down the brake control. I switched to using a CAB 1 and Powermaster instead and relegated the Dual Power "brick" to 10 and 12 volt accessory usage only. I'm sure it would be fine with some of the more modern, Railsound/Proto- equipped locomotives, but I never bothered to check.
So if i were to "crack it open" what am i looking for?. For others that replied my desire is to use this transformer as a brick if possible. If that isn't possible it will find a new home.
The AH101 can work similar to my Legacy base with the ZW-L transformers. When the layout is powered on, all the channels of the two ZW-L's are at zero volts. The Cab 2 needs to be used to separately power up each output channel. I would not want all the ZW-L outputs to come on at full voltage when the layout master switch is turned on.