Well a few weeks ago I was running the train around the track and was letting my Granddaughter blow the horn on my Flyonel NYC Alco dummy A unit. It apparently was not up to this duty cycle as the speaker became intermittent. I suspect that we had damaged the voice coil with the continuous blaring of what has to be the most pathetic horn on a late issue piece of model rr equipment. I wish I had made a sound recording of it for posterity, but alas 'tis not to be..
This
is a shot of the chassis after removing the shell and the sound board mounting.
The nice finish work on the shell is visible to the Left.
Just a little closer in shot so I can keep track of the wiring as I may wish to place this back to original some day. The board is a little more visible in this view.
Close-up of circuit board. Quite a few electronics for something that sounds like a door buzzer rather than a horn.
The speaker is visible in the lower portion of this shot. I hooked this board up to a 2" baffled speaker and the sound was just as annoying with it as the speaker shown. Unfortunately it fried the voice coil in that speaker prior to getting a sound recording. I suspect there may be a board problem generating a waveform output the the speaker that is not conducive to long voice coil life.
View with the board and speaker removed and laid off to the side while I scratch my head about where to mount the Electric RR Sound Commander Alco sound set board. My plan is to install a minicommander TMCC board to provide the better sound set control options available with the Sound Commander. I also plan to control the Dummy headlight with the minicommander. By setting both the mini commander and the MDB in the powered unit to the same Engine ID using the CAB1 the two units will act as if they were a combined unit. I could give the dummy a different engine ID and create a lash up, but the only time this dummy will be on rails is when it is attached to the powered unit.