I’m wondering if there’s a way to tap off whatever part of the PS2 or PS3 board normally activates ditch lights when you press whistle and if that can be used to drive a second smoke unit fan for whistle steam...
any one have thoughts on this, or try it?
Well, whistle steam may be a no go, but...
cylinder steam (at least just a simple blow off effect piped out of the bottom of the pistons from a second smoke unit; no nothing fancy like Vision reciprocating cylinder steam) - could be done and look at least decent if timed correctly by using the whistle blast at the right time, as MTH engines often make a hissing chuff when you crawl out at under 5 SMPH before the real chuff sound kicks on.
if the ditch lights circuit provides enough power to drive a second fan unit, with a heater going off a separate circuit running at the right temp at all times, then you could achieve a decent looking stream of smoke out the cylinder sides when activating the whistle during a slow crawl out. And you could also get the effect while in motion with just a toot of the whistle, or a hold on the button, and it will continue to go off a little while after - which, considering it isn’t supposed to be whistle steam anyway, isn’t all that unrealistic.
I’d figure wiring a second smoke unit heater in parallel off the PS2 board main smoke supply should be fine and give you on/off control over the sum, while the whistle fan can drive off the ditch lights terminal. I’d probably splice in a double-pole/single throw switch and mount it do the engine chassis (or hide it within access of the front boiler door) and run both the second heater and second fan (for cylinder) off each pole so they remain separate as circuits, but simultaneous as a controlled effect... So then I can turn the “pseudo-cylinder steam” on and off independent of the factory main stack before I start out and it can be as if it never exists, or add a little more magic to the engine and toggle-able with main smoke via DCS smoke on/off
I’m no electrical genius, but this is low tech enough that i do think I can pull it off so long as ditch lights are not all sound file dependent (and I can get some free time to experiment). If they are sound file specific then - oh well, wishful thinking this was. Fun brain exercise at least.