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| 48V lamp |
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| John Rudd:
--- Quote from: RussellT on November 17, 2015, 08:16:27 AM ---Thanks Andrew It's not that I can't get a 48V bulb - more that it would be more convenient and cheaper if I could use one from the supermarket. Russell --- End quote --- So why cant you wire the holder from a 240 v supply rather than the 48v one? That said there's a safety issue involved which is why its 48v to start with....no winners with this one...! :zap: |
| RussellT:
Thanks for the suggestions. --- Quote from: John Rudd on November 17, 2015, 10:35:50 AM ---So why cant you wire the holder from a 240 v supply rather than the 48v one? --- End quote --- I could. First I'd have to add a neutral to the machine etc etc. :bang: I can't help the feeling that some of the LED lamps out there will probably work at 50V with no modifications - perhaps I'll try one or two - after all even if they don't work I can always use them somewhere else and save electricity which will pay for them. Bill does your project mean that you've tried connecting straight to the 50V supply? Russell |
| John Rudd:
So if you have a 50v supply that must be derived from a 415 transformer? Either way you have 50v ac, so Bills voltage doubler circuit will work and led lights are a goer.... |
| John Swift:
all the machines I've seen with a low voltage work light had a either 415V step down transformer with a 25 / 50V secondary just for the "Lo Vo" light or had 25/50V a winding on the machines control transformer like this on a Bridgeport John PS How about using a 24V automotive light run from the 25V tap |
| Manxmodder:
My Harrison lathe was fitted with a 50volt step down LoVo transformer and was used in that state when I had it running on 3 phase. Since moving workshop and converting the lathe to a single phase motor I took the step down transformer windings out of the switch box and managed to squeeze in a 240/12 volt toroidal transformer so I now use 12 volt spot bulbs or the LED equivalents......OZ. |
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