Dutch Roco Forum
Electronica => Algemeen => : Jan Postema 2011-02-14, 08:51:14
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http://faq.tweakers.net/cme/ledweerstand.html (http://faq.tweakers.net/cme/ledweerstand.html)
http://www.linetec.nl/electronics/leds/led_2.html (http://www.linetec.nl/electronics/leds/led_2.html)