Subject:
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Re: 12V lego train device electronics FAQ?
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Newsgroups:
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lugnet.trains
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Date:
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Fri, 10 Jan 2003 20:22:37 GMT
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Viewed:
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1349 times
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In lugnet.trains, Guido Heunen writes:
> Hi Ben,
>
> Thank you for the link to the opened 12V switch control device. It is very
> informative. I measured, without openening, the resistance of the coil (if I
> remember correctly it was about 55Ohms) but I couldn't really conclude if there
> was a diode built-in to protect the circuitry of being baked when the current
> to the coils is stopped. It seems that there is no diode in the switch device.
> (It might be than in the control unit for the switch... or just LEGO skipped
> it at all).
>
> Do you know if the led's in the stop/go 2x3 brick contain a current limitting
> resistor. I didn't have time to check this my self...
>
> Guido
from looking through the plug holes it looks like a resistor is in there.
It's definately not just two led's in any case.
Esger
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Message is in Reply To:
| | Re: 12V lego train device electronics FAQ?
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| Hi Ben, Thank you for the link to the opened 12V switch control device. It is very informative. I measured, without openening, the resistance of the coil (if I remember correctly it was about 55Ohms) but I couldn't really conclude if there was a (...) (22 years ago, 10-Jan-03, to lugnet.trains)
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