and as far as can see have done so for years. The higher the voltage the worse the problem, however my calculations show that even with only 12V on the track the transistor that fails is right at it's limit. Just needs an alternative to be fitted by the manufacturer.
At the risk of generalising I find it quite common that manufactures who do not have a background in electronic design, but who find themselves needing to use electronics, do not do the maths to check their design and can end up with this sort of problem.
Why they have not reacted to what must be a very high failure rate I can only put down to people putting up with the problem and not taking the cars back.
Matt you have lost me on the capacitor, where does that come in?
It seems to only be the newest cars, BMW WTCC, Seat WTCC, Aston, C6R, etc. If running on less than the stock SCX voltage (14.8?), you should not have a problem. It is only the higher voltage track systems, like Scalex at 16v, which blow the circuit.
I've just treated myself to some nice SCX bargins from TopSlots n Trains.
64320 Escort mk II Roger Clarke
63570 Escort mk II Eaton Yale
63930 Seat Toledo
62970 Seat 131 Abarth
62560 Citroen C4 WRC
50469 Ford Focus 4x4 (Ninco)
These are my first SCX cars in a long long time since my last turn out with a SCX Seat Cupra GT, lasted 5 laps on my Scalextric sports track before the front lights gave up the ghost.
I'm sure i've seen a topic on here about rewirering the lights on a SCX car but for the life of me I can't seem to find it again, I seem to remember it involved soildering a resistor or a diode from the copper strip direct to the lights to cure the problem.
I'll be watching this topic to see if some one out there can come up with a cure for this problem before I start running my new SCX cars.
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