RMweb Gold russ p Posted February 1, 2020 RMweb Gold Share Posted February 1, 2020 Does anyone know if there are manufacturers that do a three aspect signal with a subsidiary aspect? As it's for a 60s layout a miniature yellow may be better than two whites. I think eckon used to do them as kits which I imagine would be a bit of a pain to build but can't see anything listed anywhere Link to post Share on other sites More sharing options...
Dungrange Posted February 1, 2020 Share Posted February 1, 2020 Absolute Aspects sell three aspect signals and you can add a position light signal on checkout, though it does add significantly to the cost. That might be okay if you just need one. https://absoluteaspects.com/gauge-aspect-stop-signal-p-357.html 1 Link to post Share on other sites More sharing options...
RMweb Gold russ p Posted February 1, 2020 Author RMweb Gold Share Posted February 1, 2020 I wonder if he can do a round topped signal head or even better a searchlight Link to post Share on other sites More sharing options...
Dungrange Posted February 2, 2020 Share Posted February 2, 2020 I guess the only way to know is to ask. Obviously Berko do a range of round topped signals including various different three aspect configurations, but I can't see any that have a Subsidiary Signal. I'm assuming that you are looking for something like this, but with a position light below (which this doesn't have). http://onlinemodelsltd.co.uk/product/3-aspect-ryg-platform-round-head/ I understand that the signal heads in the Berko range are over scale. Link to post Share on other sites More sharing options...
RMweb Gold russ p Posted February 2, 2020 Author RMweb Gold Share Posted February 2, 2020 That is what I'm looking for would prefer post to be white, I've emailed absolute aspects I used to work with the owner so see what he comes back with Link to post Share on other sites More sharing options...
Stephen Freeman Posted February 2, 2020 Share Posted February 2, 2020 I quite like Train-Tech, though probably a bit too modern. Searchlight signals aren't available Ready to Run as far as I know, which is possibly why I have only had occasion to build a couple over the years. 1 Link to post Share on other sites More sharing options...
RMweb Premium Izzy Posted February 2, 2020 RMweb Premium Share Posted February 2, 2020 (edited) CR signals do 2 aspect searchlights with a white post. I made mine own some time back and used a bi-colour LED but would now use SMD ones as I have since done for 2mm, CR also use SMD's. Although I have fitted a PL it's none working as I added it as an afterthought and couldn't find small enough SMD's to use for it at the time. I don't think there are tri-colour SMD's, but I am probably wrong, but getting small enough ones might be the issue if they do exist. I am not sure of the size of the Train tech ones. They seem a bit 'clunky' to me, more so than the Berko I feel. The Absolute ones would probably be the nicest and more to scale, but are not cheap..... Izzy Edited February 2, 2020 by Izzy 1 Link to post Share on other sites More sharing options...
RMweb Gold russ p Posted February 2, 2020 Author RMweb Gold Share Posted February 2, 2020 I take it three aspect searchlight need quite a complex controller for tri colour LEDs Link to post Share on other sites More sharing options...
RMweb Premium Izzy Posted February 3, 2020 RMweb Premium Share Posted February 3, 2020 On 02/02/2020 at 12:21, russ p said: I take it three aspect searchlight need quite a complex controller for tri colour LEDs I would expect that to be the case, but much depends on the form the tri-colour LED takes. There are several different arrangements, and my previous comments re tri-colour SMD's were really about getting the right type with decent colours in small numbers for individual use. Although bi-colour LED's are quite common, red/green aren't so much as other colour combinations, and this is more so with SMD's. These bi-colours are two separate LED's in one package with a common anode or cathode. So control is simple via a SPST switch. Tri-colour LED's can be red/green as above, but the 'third' colour is made from both being lit together. So a yellow which might veer towards orange depending on the actual colour wavelength of the red/green. Another type is RGB, red/green/blue ( the primary colours), from which any actual colour can be produced, ( often quoted as 16.7m shades). This is what I think you mean. All three together will produce white light. Both of these need more complicated control. But, there are tri-colour LED's around, and now SMD's it seems, that have individual LED's with separate control, like the bi-colours. In this case just using two SPST's ganged together, as you can for separate 3-Aspect LED signals would be possible. But.... again it's finding ones sold in small numbers at a reasonable price, at the size needed, and with usable colours.... Izzy 1 Link to post Share on other sites More sharing options...
RMweb Gold russ p Posted February 3, 2020 Author RMweb Gold Share Posted February 3, 2020 Possibly the simplest way may be a red and yellow aspect searchlight. As there are signals on the railway although capable of showing greens they very rarely do Link to post Share on other sites More sharing options...
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