Mainlinefreighter58 Posted October 4, 2021 Share Posted October 4, 2021 Short of opening it up can anyone assist me? I have a Dapol Class 22 which seems to have no control on DC, you select the direction and as you ease on the power it shoots off at its max speed. There seems to be no analogue speed control what so ever, Im using a mid 90s Hornby red knob DC controller (not sophisticated i know) but there is no speed control on the loco as soon as you get to about 1/2 way thats it full tilt. Have i accidentally bought a DCC locomotive andam i going to find a chip if i take the body off? is this normal DCC on DC symptoms? Link to post Share on other sites More sharing options...
RMweb Gold Phil Bullock Posted October 4, 2021 RMweb Gold Share Posted October 4, 2021 00 or N gauge? It may be that the motor has a high starting voltage and the voltage control on your controller is too coarse to permit starts at lower speeds. Can you reduce the speed once the loco moves off? And Have you access to another controller you could test it on? Link to post Share on other sites More sharing options...
Mainlinefreighter58 Posted October 5, 2021 Author Share Posted October 5, 2021 00 Gauge, There was no control at all from when the loco picked up voltage to being on max, It does have a blanking plate fitted so that rules out DCC, I tried a much much older loco an 80s Hornby 8F and got the same result either full or stop and nothing in between. turns out the potentiometers on 3/5 of my old controllers are the same...time foe some new budget ones i think 1 Link to post Share on other sites More sharing options...
SamThomas Posted October 5, 2021 Share Posted October 5, 2021 I would recommend that you purchase a couple of Gaugemaster units - they are guaranteed for life & a good robust basic controller. Howevr, if you really want super fine control go for Morley (but they are pricy). 1 1 1 Link to post Share on other sites More sharing options...
DCB Posted October 6, 2021 Share Posted October 6, 2021 (edited) Sounds like you have a broken wire on the Rheostat in the controller either a connecting wire or the winding itself. You could open it up and have a look but I would bin it. Get the 8F working properly on a controller before worrying about the class 22. The Hornby 8F is a power hungry Ringfield so should run quite slowly on the old Hornby Controllers unlike some others which go from 0 to 30 instantaneously. Hornby controllers are pretty naff Triang / Hornby ones worse. Morleys don't seem to do single units for OO so maybe Gaugemaster is the answer, maybe get one on eBay if funds are tight . Edited October 6, 2021 by DCB 1 Link to post Share on other sites More sharing options...
RAF96 Posted October 7, 2021 Share Posted October 7, 2021 Try it on a 9v battery pressed to the rails. It should run round at a reasonable pace. Reverse the battery to check both directions. 1 Link to post Share on other sites More sharing options...
Mainlinefreighter58 Posted October 11, 2021 Author Share Posted October 11, 2021 Final verdict is 3 out of my five controllers are knackered, One of the ones that works is an identical type to the three broken ones and the other working one is much much newer. out of the four that are the same (R.965). the working one has a totally different 'feel' to the potentiometer dial its very stiff in use but that seems to enable all my locos to vary between a barely perceptable crawl right thru to a sprint. Will hunt out a gaugemaster one as i do need an aux for points etc Link to post Share on other sites More sharing options...
AndyID Posted October 11, 2021 Share Posted October 11, 2021 2 hours ago, Mainlinefreighter58 said: Final verdict is 3 out of my five controllers are knackered, One of the ones that works is an identical type to the three broken ones and the other working one is much much newer. out of the four that are the same (R.965). the working one has a totally different 'feel' to the potentiometer dial its very stiff in use but that seems to enable all my locos to vary between a barely perceptable crawl right thru to a sprint. Will hunt out a gaugemaster one as i do need an aux for points etc Odd that three of them are banjaxed. Have they been unused for a long time? Corrosion perhaps? Link to post Share on other sites More sharing options...
Mainlinefreighter58 Posted October 11, 2021 Author Share Posted October 11, 2021 2 minutes ago, AndyID said: Odd that three of them are banjaxed. Have they been unused for a long time? Corrosion perhaps? been stood for a few months and where they were stored was slightly damp but they were working when put away 1 Link to post Share on other sites More sharing options...
Pete the Elaner Posted October 12, 2021 Share Posted October 12, 2021 Your controllers have a 16v input & output, so these should be ok as a supply for something which requires a 16v AC input like a panel mount or handheld. There is no need to splash out on a cased unit with an integral transformer. As already mentioned, Gaugemaster DC controllers give good performance & are usually pretty reliable but have a lifetime guarantee which GM honour. I have known a couple of people to send units back for repair & they get returned quickly with no fuss. One of these was an ebay purchase too. 1 1 Link to post Share on other sites More sharing options...
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