Roco Locomotive OBB Rh 1142 - improvements
HB depot from Satu Mare, this beautiful locomotive produced by Roco, was sent to Slobozia for installing LED lights on. A model very well done, with many details and multiple accessories. After a full day to painstakingly fit tiny accessories, struts, wipers, electrical outlets, air ducts and even tustucul water spraying on the windshield, I switched to a plan to shift from bulbs to LED sites.
Was more difficult to realize a process by which light can apply this system for locomotive has a guidance system based on light curves, kinda like the BR 218 Roco, the Strategic bypass cab and ends in the right bulb angle of 90 degrees at the end of the prism, the lighthouse at the central front for headlights of position.
For this requirement, we stuck together, the two SMD LEDs Zextar, white-hot. Splice was made to bring in parallel angle of 90 degrees, two LEDs, one for the central lamp and one for position.
Connecting the motherboard I did in the rail supply points, folosid for a red light 1k resistor serially connected with an LED and 820 ohm resistor serially connected with two warm white LED (glued in parallel because they need something more current to be switched). For this type of LED superflux incorporated and one reverse protection diode load (factory, which is particularly effective for protecting the LED), has to fill each group separately by each resistance as I explained above. These LEDs do not allow linking to antiparalel, as shall soon with diode protection.
We highly recommend this type of SMD LED superfulx zeXstar trading at a price without competition, the big advantage is that the building have a reverse voltage protection diode.


Detalii si imagini
http://trenulete.info/locomotiva-rh-1142-obb-roco-imbunatatiri/