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17th July 2019, 23:40 | #1 |
I really should get out more.......
Rover 75 saloon Join Date: Feb 2014
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Rewiring Emergency Exit Sign
As per the title, an old cinema exit sign which charges the batteries when it's plugged in & illuminates when power is lost.
We want it to be illuminated when plugged in now, my current theory is to remove the 9v battery pack & replace with an equivalent transformer. As the supply to the strip bulb only seems to be 3-4v, l'm figuring there must be a step-down transformer in the circuit though why a 9v bulb can't be used l'm not sure unless it is one, it isn't marked. But the circuitry must also control the switching of the on/off power arrangement so my plan of leaving the circuitry in place may be a road to nowhere. A small transformer direct to the bulb would make sense but l'm wondering why the supply voltage to it via the board is so small. Can anyone 'shine some light' on it for me please?
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Reducing the size of my Rover fleet by adding a 75 to it. Last edited by The Rovering Member; 17th July 2019 at 23:42.. |
17th July 2019, 23:48 | #2 | |
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Quote:
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18th July 2019, 02:03 | #3 |
I really should get out more.......
Rover 75 saloon Join Date: Feb 2014
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Well the fluorescent tube that's in it is already ideally mounted & l wouldn't have thought it would be too much of a problem to change its power source & leave it in place.
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Reducing the size of my Rover fleet by adding a 75 to it. |
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