Subject:
|
Re: 12V lego train device electronics FAQ?
|
Newsgroups:
|
lugnet.trains
|
Date:
|
Fri, 10 Jan 2003 20:22:37 GMT
|
Viewed:
|
2773 times
|
| |
|
|
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
|
|
Message is in Reply To:
 | | Re: 12V lego train device electronics FAQ?
|
| 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 (...) (24 years ago, 10-Jan-03, to lugnet.trains)
|
8 Messages in This Thread:
 
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
