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D1 Lighting Battery
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Concretecow
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May 20, 2019 - 11:07 pm
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Hi All

The old 3V "cycle" battery used to power the lamps on a D1 is, as we all know, obsolete.  Does anyone know of a reason why a 3V CR 2032 coin cell holder will not work in it's place?

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mike p5xbx
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May 20, 2019 - 11:32 pm
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you can fit a 2AA size battery holder inside the headlamp
as for the CR 2032 button battery thinking

D? - D10- D14 Bantams 350 AJS -500 Triumph http://bsanotru.....lfire.com/

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cocorico
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May 21, 2019 - 7:59 am
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I don't think a button cell would have enough capacity with incandescent bulbs to make it worthwhile unless you could make a stack of them connected in parallel (ie + to +, - to -).

How about some more lateral thinking? ** Please log in to view **

The Bantam Club Forum - all the answers are in there. If not, Google may.

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johnsullivan
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May 21, 2019 - 12:26 pm
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** Please log in to view **!!!g!394243212383!&gclid=EAIaIQobChMIobO3xsGs4gIVBIXVCh0rWAvpEAQYCCABEgICBfD_BwE&gclsrc=aw.ds

67 D10. and a D7    2007 Honda Hornet FA. 93 Yamaha TTR 250 Raid, Sinnis SC 125. 78 Honda 90  75 Montesa Cota 247 an electric scooter of Famous make.

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sunny
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May 21, 2019 - 4:30 pm
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most   pepal   didnot  use  the  2,5 volt    parking   lamp  back  in  the  old days            i dont  think   its  werth  fiting  one  on a 6 volt  batery  system   we  dont  tened  to  leve  our  bantams  out   late   do  we   

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johnsullivan
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May 21, 2019 - 4:38 pm
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Apparently a 996 lantern is in effect 2 800s.So were one seeking authenticity par excellence then a new brass tang a bit of soldering and a new printed wrapper...

67 D10. and a D7    2007 Honda Hornet FA. 93 Yamaha TTR 250 Raid, Sinnis SC 125. 78 Honda 90  75 Montesa Cota 247 an electric scooter of Famous make.

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johnsullivan
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May 21, 2019 - 6:04 pm
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..I always thought the idea was to provide a lamp to the rear irrespective of engine  output .

67 D10. and a D7    2007 Honda Hornet FA. 93 Yamaha TTR 250 Raid, Sinnis SC 125. 78 Honda 90  75 Montesa Cota 247 an electric scooter of Famous make.

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Piquet
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May 21, 2019 - 8:03 pm
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No, it was to comply with UK law at that time which stipulated that all vehicles that carried lights must have front and rear parking lights. With direct lighting this was the only way to provide that facility.

I'm not a complete idiot ............................................ some parts are missing.

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Concretecow
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May 21, 2019 - 8:26 pm
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sunny said
most   pepal   didnot  use  the  2,5 volt    parking   lamp  back  in  the  old days            i dont  think   its  werth  fiting  one  on a 6 volt  batery  system   we  dont  tened  to  leve  our  bantams  out   late   do  we     

Hi Sunny

You're dead right there.  With the feeble output from that miniscule rear lamp, I don't think I'd dare venture out after dusk.  The idea was more for some sort of back-up system, but from yours and others comments, I don't think it's either feasible or worth it.

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Concretecow
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May 21, 2019 - 8:28 pm
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Thanks for the comments everyone.  I need to look into the power aspect a bit further, but as Sunny says, probably don't want to be taking it out after dark anyway.  

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cocorico
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May 22, 2019 - 10:17 am
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If you have the WicoPacy generator, that has less than 30W output, the Wipac 55 has only a bit over 50W. For better light intensity you could think about using LEDs (see previous posts on the forum).

The Bantam Club Forum - all the answers are in there. If not, Google may.

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johnsullivan
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May 22, 2019 - 1:32 pm
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** Please log in to view ** good read.

67 D10. and a D7    2007 Honda Hornet FA. 93 Yamaha TTR 250 Raid, Sinnis SC 125. 78 Honda 90  75 Montesa Cota 247 an electric scooter of Famous make.

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Concretecow
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May 22, 2019 - 9:23 pm
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Thanks for all the info and suggestions guys, but it looks like I have more serious issues than what battery to use...

The switch is missing several important brass internal parts, and..... the Bakelite top outer bezel has a hairline crack freaked-out_gif

I know these switches are rare and expensive, but I don't suppose anyone has a trashed one where the brass contacts are salvageable?  Or has a source of just the contacts?

Otherwise I'm looking at how to fabricate them, and maybe 3D print a new switch in ABS.  Have to tap up #1 child for this - could be costly.  But still not as costly as a second hand switch on a certain well known auction site.....

 

 

IMG_3935.jpgIMG_3936.jpg

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johnsullivan
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May 22, 2019 - 10:10 pm
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I pay my helper in Vimto or irnbru.He and I  are  exploring 3d printing the hard part is the CAD  which somebody has owned up to but I cannot retrieve the thread.This is certainly a cost recuperable project

67 D10. and a D7    2007 Honda Hornet FA. 93 Yamaha TTR 250 Raid, Sinnis SC 125. 78 Honda 90  75 Montesa Cota 247 an electric scooter of Famous make.

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Mags 1
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May 22, 2019 - 10:14 pm
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One of my daughters repairs Transformer etc toys and uses an online firm to 3D remake some hard to source parts, in the right colour too of course.

Four now on the road and at least several in bits.

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cocorico
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May 23, 2019 - 7:15 am
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** Please log in to view **...3938812.3949338..3952323...0.0..0.169.3454.0j23......0....1..gws-wiz.jtl7Ti5_kUU

The Bantam Club Forum - all the answers are in there. If not, Google may.

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Concretecow
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May 24, 2019 - 6:12 pm
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johnsullivan said
I pay my helper in Vimto or irnbru.He and I  are  exploring 3d printing the hard part is the CAD  which somebody has owned up to but I cannot retrieve the thread.This is certainly a cost recuperable project  

Unfortunately mine runs to slightly more expensive tastes in strong continental lagers....

But I showed him the top bezel, and after literally 10 minutes with a tape measure, and some computer witchcraft, he came up with this.  Needs completing and refining, but definitely proof of concept.  I've brought some slightly more sophisticated measuring gizmos to bear on it, so might have a more accurate drawing, and possibly even the knob.  We'll let you know how it goes.

 

top-bezel.JPG

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