My pair of JHG arrived yesterday and had a trial run on our club layout last night.
Interestingly the tail lighting circuits have a flicker free effect, but have trouble staying on, as though there is an intermittent break in the circuit. (Yes, the track and wheels are clean, I checked.) Watching the end of the train going around the layout is amusing with the lights going on and off (slowly), but not prototypical. Any ideas why?
Additionally on DC, with only partial voltage applied (to stop the train travelling at 100mph) the tail lights are fairly dim, not bright. Lighting brightness is good on DCC, but still with the on/off variance effect in play. One touch I do like is that the tail lighting level (when working correctly) is at a prototypical level, and not over bright like spot or ditch lights as is typical of many other models.
Happy braking (not breaking),
it will be interesting to see how they work on DCC?
You appeared to be operating on DC, and the problem, as I see it, is that that DC operations require operating from a variable voltage that switches positive and negative to be directional.
DCC however has a near constant voltage and the switching is done in the loco chip for direction. Their is thus a fairly wide voltage range for the lighting circuit to operate under. zero to 13 v for Dc, and 14 to17 v for dcc. As well DCC has an AC component
In your case your vans are demonstrating that the capacitor is not holding much power.
However DC would make reverse running easier, voltage reversal should simply change ends for tail lights. I believe DCC requires a magnetic wand, or a switch underneath to manually change ends (or a DCC lighting chip)
Your fix might be fairly simple. I would probably ask about fitting a super capacitor to hold the lights on longer. But first check if you have working pick ups on both bogies. Some are cheating and picking up of one bogie only.
I will check mine when they get here possibly by Wednesday.