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NFWEM57

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  1. Demo of steam loco passing through British Finescale EM gauge turnout in the facing direction. As requested. Requested video of BR 5MT steam locomotive approaching British Finescale EM Prototype turnout in the facing direction. Wheels as before, Alan Gibson tender and pony, original driving wheels. Driving wheels will be replaced with Alan Gibson shortly. Last video demonstrating British Finescale EM gauge turnouts. production has started and the points will be available soon. Check the website for news. I have no affiliation to the product owner, I am merely undertaking independ
  2. Many old DCC converted and new DCC Ready locomotive are still used on analogue (DC) layouts. Invariably the blanking plug does no more than direct power from the track to the motor. The addition of a pair of diodes to the blanking is often used to provide power for lights and works well for filament lamps but not always for LEDs. The circuit below was devised to overcome the issue and also provide a more constant voltage for lighting as the track voltage varied. The components used are common and cheap. In its prototype form, with screw terminals, it fits on a 2.5cm square pie
  3. I too drill small holes, M1.2, and then use self tappers, M1.4 x 3, and a small washer to secure the wires for track power. Motor wires from decoder and motor attach to a small solder pad. As I am converting to EM, I also install separate pickup arrangements as the brass bush and finescale wheel combo, which replaces the existing wheel and plastic stub axles, is not 100% on pickup. On some chassis, Bachmann 4MT for example, there is not a lot of room for a decoder so I cut away the front top part of the chassis to provide space for a decoder.
  4. Hi Susie, Thank you for your suggestion. The circuit I outlined above is intended to be used for (old) loco conversions to DCC and with cheap basic 4 function decoders. The reason I used an opt-isolator is because the loco in question might be sold on with a dcc blanking plug. Many still use DC and there is a modification that can be made to blanking plugs with diodes that provides directional lighting which works fine with filament lamps on old locos, but not LEDs; they burn out quite quickly because of excessive reverse voltage caused by the combination of diodes.
  5. I have developed a circuit which provides, using a 4 function decoder, normal running lights with red selectable on/off and direction sensitive cab lights. No diode arrays or relays are used. The circuit makes use of optocouplers to provide a switched supply to red running lights and cab lights. The circuit for the red running lights is shown below, the circuit for the cab lights is similar but uses Aux 2. The cost of the the components is under £1, a dual optocoupler typically costing £0.28 and resistors just a few pence each although buying from a well know on line merchant m
  6. Hi Keith, Thank you for your support. I think I was trying to thank Wayne in my message, as well as apologise for the delay in running steam, but perhaps my message was not clear to all. So, more explicitly, a big thank you to Wayne, well done, you really have created a 'game changer'. I include details about the loco conversion so that those with far more experience than I are aware of what is passing over the the subject of interest - Wayne's product - and can better form an opinion on the said product. After all, we have had a few issues with my steam conversions
  7. Frustrated with the issue myself and with a number of locos to convert to DCC, I have designed a simple electronic solution to the direction cab light and switchable on/off tail light which can be implemented using any 4 function decoder F0 as normal, F1 Cab Lights (directional), F2 Tail Lights On/Off (directional). I am about to breadboard and test using a basic 8 pin 4 function decoder. Cost of circuit is well under a £1 with a small PCB of about 1 inch square. No switches or relays required, fully controllable using the function buttons. is there still any intere
  8. Thank you, much appreciated. Have quite a lot of locomotives to convert 50:50 diesel and steam with diesels now all but complete. On the crossover, yes, they are the B6 points manufactured by PECO for the EMGS.
  9. Hi, The purpose of the video was to (finally) show a steam engine running through Wayne's great new product which is the overall purpose of this thread. The loco is only my third attempt at EM conversion of a steam loco and I did pick two absolute mares with the two split chassis locos for my first two attempts. Keen to show a steam loco running through Wayne's prototype point, as I had long promised, I put aside the troublesome split chassis Mogul and 4MT and very quickly converted a Bachman 5MT I had acquired some time ago and for which I had already obtained a replacement fine
  10. Of course, I will make make another video at the weekend, tad busy with the day job at present. Pretty soon you will be able to try one yourself looking at Wayne's progress...!
  11. Finally, Steam....!!! I have put the split chassis locos to one side for now and quickly converted a Bachmann BR 5MT to EM; model 32-500, DCC ready and circa 2001 vintage. The conversion is partial, AG wheels on tender and pony truck, existing driving wheels re-gauged to EM. The original driving wheels are quite thick, 2.9mm, and mounted on a shoulder axles (3mm to 2mm). A total of 1.75mm of washers have been added to each driving axle and the B2B has been set to achieve 22mm face to face. it is not ideal but passable, there is speed wobble..! As ever, brake block
  12. After a battle with pickup on both the 2 split chassis steam locos I am converting, they run sweetly with power to the chassis but not via the wheels, I decided to use a more modern Bachman Class 47 and use a rake of 5 EM gauge Mainline coaches to get something on line. Steam not off the cards, just slightly delayed...! Class 47 has Alan Gibson wheels and the 5 (test) coaches have Peters Spares 14.1 mm coach wheels (RP25-110). There is a very slight curve in the track prior to the main heal of the turnout. Enjoy the video, sorry about the background sound. I think t
  13. Thanks for responding. But an RC will not stop an overvoltage of significant duration relative to the time constant , so it is a combination of the two that will give true overvoltage protection and transmission line damping. Very interesting that the US community often use them but because of their relative obscurity here they are seemingly ignored or even frowned upon. Patrick
  14. Hi, Thank you for responding. On the why, because it is a simple, cheaply available solution which is not frequency dependent and draws no current; 27p a diode..! An RC solution always draws current which will be a problem for current based block detection. The TVS will absolutely resolve the issue of overvoltage, and so protect expensive decoders, but the problem with the transmission line issues, reflections and null points, needs other solutions, if indeed they occurs on a specific layout. Patrick
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