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    Light railways, micro layouts, 7mm 0gauge, card modelling, making my own DC controllers.

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  1. Hello John, I agree with this and can provide an answer, it's the 3D CAD systems with quad/quad tandem processors and the designers motto, "If it can be done lets do it in the most complex manner that the software will allow". Model railways is not the only discipline to suffer from this. Audio is a prime example a 1946 Class A valve and a 1969 4 transistor Class A amplifier are still at the top of the game. And yet similar overcomplicated and overpriced software designed stuff claims to be "better". When nothing could be further from the truth. Camera worki
  2. Hello Mark, Please accept my sincere apologies, it's my fault entirely. I started the thread with the main word 'micro' in the title thinking erroneously that people reading the thread would think it related to something specific rather than a general controller thread. I realised this yesterday and have changed the thread title to reflect it. I should have replied to you to explain this before proceeding with the title change, do forgive me. If you should come across any simple circuits that anyone can make please feel free to post them here. Ot
  3. Hello CK, Thanks for the nice comment good of you, it's surprising how such simple circuits can produce such fine results. I do a PDF that shows how to make either of these and assumes that the person reading it has no electronic knowledge at all. I taught myself in the 80's to recognise components and convert a diagram to something that works, that's all that is needed. Drilling boxes is a pain this is mounted on 2mm grey card And sits in a hole in a baseboard. The stripboard is simply hung from the card I will gladly send you the PDF
  4. Hello Mark, Thanks for sending me all that stuff very interesting to read it all. It's surprising how complex electronic engineers like to make things. I was sitting on the lav at Wolverhampton Borough Council and on the wall was written this; "I went to colej to ger ejukated Now I are a engineer" I have tried Mr Amos's No 7 circuit from his No2 book sadly the result was nowhere near the claims the gentleman makes for his circuit. It is quiet though, but the "feedback" is non existent as are the "slow starts" it would be fine for speedy roundy roundy layouts but use
  5. Hello Adam, If it's possible to for you to do this, then it is the simplest way to change polarity. A half circle of T&E earth wire poked up from under the board in contact with one blade at a time and a bit of wire to the frog area. Occasionally you might have to bend it a bit with a screwdriver. File some flats to make a better contact. [edit]Another pic once the conversion had been finished with the wires in place. I was going to use wire in the tube made these levers and am still using them. Cheers - Jim
  6. Hello Mark, Many thanks for the comments and the anecdotes a few years ago I found this page: https://www.scottpages.net/ReviewOfControllers.html and used the original UF circuit therein, the D13T1 UJT is not available in the UK so I used 2N6027 instead, with the 10k resistor the circuit would not switch off, once doubled it did. I've also made the other two circuits that are now on that page the Mk2 hums down to zero and the Mk3 works the same as the first one. The Mk1 and Mk3 used in the video, do switch off but just after the loco has stopped, the Brian Tilbury one s
  7. Hello all, Here's the video of the comparison; [edit] Best at full screen and 1080p [edit2] Please watch with the sound and then without it they do start just as slowly, it's the noise of the UF one that fools the eye. I have also combined the two circuits, instructions, semiconductor pinouts, resistor colour chart and hints and tips etc into one PDF. I will gladly send this to anyone who sends me a nice message through the site with their email address. I ignore one line phone speak demands. Cheers - Jim PS
  8. [edit] 14-04-2021 I have altered the title of this thread a few times and this reflects the interest I see in this DC forum for a slow running controller. I send out to those who are interested a PDF with details of how to make the two in the video. I authored this to assume that the reader knows nothing at all about electronics. Please send me a nice message with your email address and I will send it to you. I ignore one line phone speak demands. Hello all, Apologies for resurrecting an old thread I do have some information to impart. Thi
  9. Hello Snitzl, I saw Pendon as a lad on a Youth Hostel tour and thought the control was good then, fair play to you for all the work you've done on Stewart's design. I had often wondered about the Pentroller having used Brian Tilbury's 3 transistor pulse/feedback design for many years and now Jonathan Scotts MK3 pulse/feedback Gaugemaster style They are both noisy this is the JS3 and an extreme example I know but even with no load the noise is quite loud. The motor is a 6 pole Chinese one. I wondered if the one you designed would be any quieter
  10. Hello Paul, Thanks for the comment, I bought the motors on eBay 12v 6 pole will find them, there are several versions. There are some that will only do 3,500 revs at 12 v the ones I bought will do 7,500. Cheers - Jim
  11. Hello all The motor arrived the day after I glued a £2.20 one into my Y7 chassis. I use Seccotine to glue motors to their card cradles and to glue the cradle into the chassis. A bit of pressure with a screwdriver soon parts the joins. The £1.17p (including post) motor can be seen working in the video. Hmmmm I thought put another one on ........ Best full screen Avva laff Cheers - Jim
  12. Hello Barnaby, Many thanks for your comment good of you to explain at length your O Gauge raison d'être. It's always very interesting to hear how people approach a subject. When I made my first one I was surprised how interesting it was to operate. It was the addition of the loco release that did it which takes it a fair old way from the inglenook. I doodle layout plans on odd bits of paper and work out the movements in my head. If I can see them all in a few seconds then it will be boring to operate. This assumes that ones interest actually lies
  13. Hello Terry, Thanks for your lovely comment I'm delighted. I do hope you have a go at O you'll be delighted as well. Cheers - Jim
  14. Hello all, We moved house when we retired. I'd started another 10 footer. Made a little room at the back of the garage. It wasn't long enough for the layout, I did take it to some shows. At the one I went to in Crewe, Bob Hughes very kindly recommended me to a guy who'd made a back scene. He said I could have it in exchange for some pics, this is one of them. I'd been looking at Carl Arendts site and like the idea of his challenge, to make a layout in 4 sq ft or less with a reason for being, the fiddle yard could be separate. I took the above to the Ilkeston show
  15. Hello Phil, The quart in the pint pot is do-able I did this video for a OO member thinking of taking up O gauge but was concerned about point radii and couplings. It shows a 34" radius Barry slip and 28" radius right hand point with a Manning Wardle 0-6-0 going through them. I do hope you don't mind me showing the vid at this late stage in your endeavours. Cheers - Jim
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