DC - Electrical

LPS L1's picture

MRC symphony 77 - any good????????

Are those MRC symphony 77 separate sound control units any good? I know it is for 1 loco/train at a time but that suits me fine, also is the diesel sound specific to a certain type of loco - or or is it "generic" 

Thanks in advance, Skoti

BLMA Signal wiring help

Hi everyone,  newbie here!  I am currently building my 7' x 13' layout.   The signalling application I am struggling with is either side of the passing siding I have on the layout.   Basically, either end of the siding, I wish to install BLMA signals.  Searchlights at one end and the new 'darth vader' signals at the other (I enjoy taking photos, so the mix is best!).

dfandrews's picture

DCC for beginers

FYI - Allan Gartner has added a new beginers forum on the Wiring for DCC website

 

http://www.WiringForDCC.com/intro2dcc.htm#a33

Allan Gartner
Wiring For DCC
 
 

Pulse Width Modulation? Need help.

Questions about PWM:

 

 

I am trying to do a project that is a digital throttle, driving the track with a plus width modulated (PWM) constant frequency. I have a commercial analog throttle that generates this PWM voltage source (it is at about 18KHZ) but I want to do it digitally for reason too complicated to explain here.

 

LPS L1's picture

modifying LEDs -How?

is there any particular method to change the length (make shorter) an LED??

thanks in advance,

geoffb's picture

Scale Model Animation 4 – Critter Guidance, Sensors, & Fun

Model animation—bringing models to life—adds enormously to the interest and enjoyment of any layout or individual model! This time I show how The Crane Critter finds its way, using a simple application of a terrific magnetic sensor that modelers of all kinds should really understand. I’ll point you to some parallels in robotics—now don’t get scared off – that might give us modelers some new ideas for our layouts, and why scale model animation is different… and the same! Maybe scale model animation taken to the limit is Micro-Robotics?

geoffb's picture

Scale Model Animation 3 – Teaching The Crane Critter How to Crawl

Model animation—bringing models to life—adds enormously to the interest and enjoyment of any layout or individual model! In this installment I revisit The Crane Critter.  In this installment, we begin to teach The Critter how to crawl, when, and where we need it to go!

The Crane Critter with a new? Coat of paint ready to go!

 


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