Raleigh Superbe light wiring issue
08-10-23, 09:09 AM
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Raleigh Superbe light wiring issue
I have a problem with my lights my Raleigh Superbe is using LED bulbs so they respond very well to both battery and dynamo power but the bottom plate of the battery pack went "missing" at my parents house and the front lamp is dim and only works if it's connected to the bike. I think it's drawing power from the earthing which is wrong.. there's a wiring issue somewhere
Last edited by KarinExMachina; 08-10-23 at 09:10 AM. Reason: Extra info
08-10-23, 11:12 AM
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Don't "Think".. Find Out.
a volt/ohm meter will show polarity... and a bad ground point is what i'd look for first.
corrosion at a wire/connector junction, or at a connector/frame junction, will create an ohmage above a few tenths of an ohm........ higher ohmage will cause a voltage drop, and dim lights.
Solder any bad connections, or coat with de-ox grease, after thorough cleaning, to prevent future issues.
a volt/ohm meter will show polarity... and a bad ground point is what i'd look for first.
corrosion at a wire/connector junction, or at a connector/frame junction, will create an ohmage above a few tenths of an ohm........ higher ohmage will cause a voltage drop, and dim lights.
Solder any bad connections, or coat with de-ox grease, after thorough cleaning, to prevent future issues.
Last edited by maddog34; 08-10-23 at 11:17 AM.
08-10-23, 02:47 PM
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Perhaps this?
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08-10-23, 09:50 PM
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08-11-23, 01:12 AM
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08-11-23, 07:09 AM
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The way I'm reading that diagram, the tip voltage is positive and the ground is negative. Starting from the tail-light, I see that the base is connected to negative and the tip is positive. The negative on the tailight is connected to terminal I on the DAUFSU (why not just say "battery switch unit? Sigh...) which is also connected to the ground on the main lamp which is connected to the negative on the hub dyno. So isn't this a negative ground/earth system?
I have to say that the "Dyno Luxe" logo on the drawing is pretty cool....
I have to say that the "Dyno Luxe" logo on the drawing is pretty cool....
08-11-23, 10:45 AM
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Give me a crossflow brass radiator over a plastic and Aluminium any day. Brass radiators were phased out as cost cutting, not performance.
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08-11-23, 11:51 AM
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There is very little to prefer the use of one versus the other until electronics came about. As we know semiconductor PNP transistors never caught up with the capability of NPNs, which in turn are easier to design with using a positive supply, particularly in switching electronics. Electron tube designs for radios also preferred a positive supply, so the positive ground systems were simply a choice that didn't pan out in the long run
Give me a crossflow brass radiator over a plastic and Aluminium any day. Brass radiators were phased out as cost cutting, not performance.
Give me a crossflow brass radiator over a plastic and Aluminium any day. Brass radiators were phased out as cost cutting, not performance.
Look up Heat transfer coefficients for the radiator materials mentioned.
Brass was chosen because it was easily formed.
plastics were not available, and easily formed aluminum alloys had yet to be created.
i will not be responding further on this irrelevant subject.
Last edited by maddog34; 08-11-23 at 11:58 AM.
08-13-23, 03:02 PM
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Bottom plate was a piece of metal with a domed center and a drilled and tapped hole to secure with a screw and nut to the tube
08-13-23, 03:11 PM
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Rear lamp with front bulb
Rear lamp with rear bulb
Front lamp
Rear Lamp
08-13-23, 03:13 PM
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As you can see from these the front bulb seems to be brighter than the rear until i put it into the front lamp then it goes dim, it also only works when the lamp mount is pshycially touching the bike frame. it sounds like its getting power through the frame of the bike instead of the wires
08-13-23, 03:15 PM
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As for the bulbs its these. A Xgen 2 rate limiter was also added to make sure the dynamo doesnt blow out the LEDs when it puts more energy through it.
Left is original Halogen bulb that i replaced with the Right Bulb which is a white LED
Left is original Halogen bulb that i replaced with the Right Bulb which is a white LED
Last edited by KarinExMachina; 08-13-23 at 03:16 PM. Reason: more info
08-13-23, 06:29 PM
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heres the wiring into the front lamp it has 4 terminals but only 2 are in use and the ground is the front terminal thats facing a different way from the other 3
