Tram Controlers

tramcar trev

all manner of mechanical apparatus...
Remember me saying I was going to get the radio control thingy for the tramway? well tooooooo damned expensive for what I need so Im going to split the entire system into 2 sections with one controler for each and make up some smaller copies of the real thing but with this inside: http://cgi.ebay.com.au/LED-Light-La...18112?pt=AU_Lighting_Fans&hash=item5d2e2c5e00 it says it handles 96 watts.... Ok I'll need 2 amps so thats ok....

Reversing would be via a DPDT rotary switch in the fake controller box and operated by a tramway reverser key.... have a look at this has the inside of a melbourne tram's drivers cabin and a picture of my front door bell...: http://en.wikipedia.org/wiki/Tram_controls#Power_supply_switches
Heaps of prototypes around but I'll choose an old design to make. Probably wont have "notches" as such but I guess that would not be too hard to do inside the box....
Thoughts?
 

New Haven Neil

trains bikes camping kayaking red wine.....more tr
24 Oct 2009
4,943
0
Some of those photos look like Christchurch?? The Cathedral??
 

Dtsteam

G Scale, Travel, Steam Boats, Mechanical Music
24 Oct 2009
5,401
15
Preston
If you use a 4 pole 3 way wafer switch inside the reverser, then you get the centre off.
Its very hard to replicate the feel of notching up a tram controller, but a meccano wheel with a sprung roller arm will get close, or a pushbike sprocket even closer. I managed to pick up a large industrial rotary switch years ago and mated it to a metal handweel, but it still wasn't very notchy.
I acquired the controller off a 4VEP emu over 20 years ago with a view to something similar. Its only got 4 notches and weighs a ton. Maybe one day I'll get round to it.