White LED headlights for DB 101

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White LED headlights for DB 101 - White LED headlights for DB 101

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fossie		#1 Posted : 19 November 2019 23:57:13(UTC) Retweet
Joined: 27/03/2004(UTC) Posts: 50 Location: ,		Dear All I have a couple of the old Marklin DB 101 electric locomotives eg 37396. Is it possible to change the LED's on theses from the yellow LED's to the white LED's for both the normal and long distant headlights using the existing Marklin decoder. Or does any company manufacture a new headlight pcb. Many thanks Andy


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DaleSchultz		#2 Posted : 20 November 2019 00:42:00(UTC) Retweet
Joined: 10/02/2006(UTC) Posts: 3,997		depends on your soldering skills.... what does the headlight PCB look like? Surface mount components (SMT) are harder to do, the older bigger LEDs are pretty easy. If it is available as a spare part you could order a spare and see if you can replace the LEDs with white ones. If you mess it up your loco is unchanged...
		Dale Intellibox + own software, K-Track My current layout: https://cabin-layout.mixmox.com Arrival and Departure signs: https://remotesign.mixmox.com
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H0		#3 Posted : 20 November 2019 09:26:45(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,262 Location: DE-NW		Hi! Originally Posted by: fossie Or does any company manufacture a new headlight pcb. Märklin make such PCBs for the current 101 models. Originally Posted by: fossie Is it possible to change the LED's on theses from the yellow LED's to the white LED's for both the normal and long distant headlights using the existing Marklin decoder. When I use the new PCBs with the old 6090x decoders I add 10k resistors in series for normal and red lights. I skip the extra resistor for the long-distance headlights. Here a picture of a converted 182 (same principle, different PCB):
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS


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mario54i		#4 Posted : 20 November 2019 12:37:14(UTC) Retweet
Joined: 28/03/2007(UTC) Posts: 283 Location: Torino,		The replacement LED board is E123905 and costs 21 € (I guess each, not a pair). I replaced the LEDs myself, it's a tough job, requires soldering skill as 0402 size LEDs are needed. But it works. And this is the result, comparing a 37372 with a 37399 with original lights. Mybe too bright, but it's just matter of replacing resistors. Nothing else was changed. Regards

1 user liked this useful post by mario54i		mbarreto
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