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I'm totally rambling at this point, but here's a nice pick of the cockpit. From left to right: your controller, the old school up right, manual kind; direction handle, in a tram like fashing this is fixed and not a "key"; electrics box, containing the tram's driwing light switches, the bell and point turning magnet controls; your standard Westinghouse brake; rotary parking brake and sand pedals. Behind your back at the roof there would be cabin light and heating resistor, controls, and the main power switch which also doubeles as the cab selector. You don't get fancy things like speedometer or automatic windshield wipers.
Now I said this tram is bidirectional, but as Helsinki is 100% unidirectional system, some concessions were made: the B-cab doesn't have that lights control box or sand controls. Still better than that other heritage unit where the rear cab is 100% dummy.