Where does one buy a diode? Maplins were fkn useless

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Where does one buy a diode? Maplins were fkn useless

Post by Big Chris on Mon Sep 11, 2017 11:24 am

As usual I'm pissing about with bike electrics.

I need a diode which can go between headlamps, maximum current it will take is 10 amps, on a 12volt system.

I asked for this in Maplin, only to receive a blank stare from 3 of their staff.

Where does one go to for such a product, and what would it be called?

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Re: Where does one buy a diode? Maplins were fkn useless

Post by june_whitfield on Mon Sep 11, 2017 5:46 pm

you buy them at Maplins, preferrably one staffed by non-idiots

or on ebay

or send me you address, and i post you a couple

however i must also question the wisdom of placing a diode "between headlamps"?

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Re: Where does one buy a diode? Maplins were fkn useless

Post by voodoo on Mon Sep 11, 2017 6:45 pm

probably to make 'm shine in the same direction?!?

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Re: Where does one buy a diode? Maplins were fkn useless

Post by spotarama on Mon Sep 11, 2017 11:13 pm

theres a little place down the road from here called Jaycar...oh hang on they're staffed by fucksticks too, way more interested in selling you an expensive drone than what you actually need
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Re: Where does one buy a diode? Maplins were fkn useless

Post by Big Chris on Tue Sep 12, 2017 12:43 pm

These are my headlamps:

http://up.picr.de/30241206yg.jpg

[Img] https://up.picr.de/30241206yg.jpg [/ img]

<img src = 'https://up.picr.de/30241206yg.jpg' border = '0' />

https://up.picr.de/30241206yg.jpg

The left one, with a cage on the front, is a single filament bulb, so it is wired into the low beam circuit.

The right headlight has dip/main and a pilot light. When on low beam both this and the single filament light are illuminated.

I want to have the single filament light on regardless of whether the other light is on low beam or high beam. At low beam it isn't a problem, its wired that way now. What I want to do is take a power supply from the high beam circuit to feed the single filament light. But if I do that, on low beam power would flow the other way back to the other headlight and light the high beam as well as the low beam.

I reckon a diode in that power supply would correct that problem. On high beam I would have both the single filament light plus high beam of the other light on. Which would be great if I'm on country roads at night.

Spotarama, do you recognise that single filament light? you gave me it.


Last edited by Big Chris on Tue Sep 12, 2017 12:46 pm; edited 2 times in total (Reason for editing : getting picture links to work)

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Re: Where does one buy a diode? Maplins were fkn useless

Post by june_whitfield on Tue Sep 12, 2017 2:12 pm

right, that would actually work
and saves arsing about with a relay
unless your wiring catches on fire from the extra load...

anyway if you wanta couple of diodes just pm me your address, i have a strip of at least 25 somewhere

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Re: Where does one buy a diode? Maplins were fkn useless

Post by Big Chris on Tue Sep 12, 2017 2:54 pm

June Whitfield, I sent you a PM

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Re: Where does one buy a diode? Maplins were fkn useless

Post by spotarama on Tue Sep 12, 2017 10:42 pm

I knew that would come in useful one day, I think it came off hard rubbish with some Honda and bmw parts. I think it might be off a bmw trailie or something
hope to get more work done on the Honda trailbike (the one I sent you the pic of upside down after Ășnloading' it off the trailer) this weekend, going to do more on the bodywork (involves scraping 20 odd years of decomposed plastic down to useable paintable surface) and see if I've got cables and controls that fit with the monster 70s trailbike bars its got on.
I've adapted your headlight brackets to fit so sorting the wiring will be next for those
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Re: Where does one buy a diode? Maplins were fkn useless

Post by Big Chris on Fri Sep 15, 2017 8:36 am

Thanks June, diodes arrived

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