Topics Topics Edit Profile Profile Help/Instructions Help Member List Member List  
Search Last 1|3|7 Days Search Search Tree View Tree View  

Jacaob's Ladder (April 2014) - Igniti...

:: EPE Chat Zone ­:: ­Radio Bygones Message Board :: » EPE Forum Archives 2010 - » Archive through 16 April, 2014 » Jacaob's Ladder (April 2014) - Ignition coil source? « Previous Next »

  Thread Last Poster Posts Pages Last Post
  ClosedClosed: New threads not accepted on this page        

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

perro
Frequent Contributor
Username: perro

Post Number: 177
Registered: 10-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, 02 March, 2014 - 12:28 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Does anyone know of a good substitute (and source!) for the ignition coild used in the Jacob's Ladder project (April 2014)?

Those mentioned in the article only seem to be available from Australia or the USA which, for me (having previously been badly bitten by postage, import-duty, VAT and customs' admin charges ) are sources of last-resort.

I'm not sure why 'Camaro Firebird V6' is mentioned as a good option for UK readers. I can't recall was the last time I saw one of those on a UK road.

So, what I'm looking for a is a readily available coil (i.e. one from a popular UK vehicle) which will do the equivalent (or better?) job as those specified in the article.

Any suggestions?

Thanks
Top of pagePrevious messageNext messageBottom of page Link to this message

gordon
Frequent Contributor
Username: gordon

Post Number: 975
Registered: 05-2005

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, 02 March, 2014 - 03:41 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Had a quick look at the project, and the style of the ignition coil seems to be important. I am only used to the can type coils, so no expert. Looking at Ebay, the Lotus Elan coil seems to be of the same design. Not sure whether Halfords still sell coils, and there are also the car breaker yards as a possible option.

http://www.ebay.co.uk/sch/i.html?_odkw=lotus+ignition+coil&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xlotus+elan+ignition+coil&_nkw=lotus+elan +ignition+coil&_sacat=0
Top of pagePrevious messageNext messageBottom of page Link to this message

ant
Frequent Contributor
Username: ant

Post Number: 1029
Registered: 05-2006

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, 02 March, 2014 - 05:21 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Hello all,

I was drawn to this idea as a basis for a simple electric fence and I'd just go to a breaker's yard and see what was available.

In my particular context, electric fences are rated by the charge available for each jolt so it would need to be a capacitor which is discharged each time. I'm sure one could work out the charge from the timing parameters but that seems like a lot of trouble for my simple and fixed application.

This isn't intended to be a hijack, sorry...

Regards Ant
Top of pagePrevious messageNext messageBottom of page Link to this message

mikehibbett
:::: Super User ::::
Username: mikehibbett

Post Number: 1547
Registered: 04-2005


Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, 02 March, 2014 - 08:02 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Where do you live Ant? I'd like to make sure I give you a wide berth :o)

Mike
Top of pagePrevious messageNext messageBottom of page Link to this message

ant
Frequent Contributor
Username: ant

Post Number: 1030
Registered: 05-2006

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, 02 March, 2014 - 09:59 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

North Shropshire, Mike. My first fence was 6" high to deter cats from our newly-planted hedge cuttings etc - it did nothing 'til something touched it then delivered a great belt - I could only put it on at night because it might catch kids or dogs. But it took the cats a month to find it was longer in use!

My second was a few turns of thick wire as a primary on a mains transformer, used for my cows and sheep. Then a cheap commercial thing which adequately discouraged squirrels from the bird feeder...

I want another like that now, when I get round to it!

Sorry Perro...

Regards Ant
Top of pagePrevious messageNext messageBottom of page Link to this message

bruce
Frequent Contributor
Username: bruce

Post Number: 1020
Registered: 04-2008

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, 03 March, 2014 - 04:36 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

The Camaro Firebird V6, huh! Well, there's loads of them around.
Have you noticed that almost every project in EPE is written by the same 2 or 3 Australian guys. Doesn't the UK have any designers? The Aussies write for 'Silicon Something', so why don't we just buy that mag instead? They cant even be bothered to amend the articles for the UK audience, so we get pics of Aus mains connectors.
This farce over the coil is another example of an article which uses parts available in Aus, but unobtainable here.

In any case it's all fluff. You can make a Jacob's ladder with any old vehicle coil. I've seen 'ladders' using LOPTs and MOTs as well as standard car coils. One guy used 2 coils to improve things.
It isn't well known that the 'electronic' coil for early electronic ignitions in the 1970s was
slightly different from a standard coil. The time to recharge the coil after a spark was determined by the inductance. The value was a compromise between time available and the current the contacts could withstand. Electronic systems could cope with larger currents which you got from a lower-inductance coil but many drivers were unaware of that and used the same coil, so that the advantage was lost.

I'm hugely confused by that circuit diagram. Is there a single secondary winding feeding 2 spark plugs?

Bruce
Top of pagePrevious messageNext messageBottom of page Link to this message

cjay
Frequent Contributor
Username: cjay

Post Number: 51
Registered: 10-2013

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, 03 March, 2014 - 05:59 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Bruce, yes, one secondary winding, it looks like a DIS or 'wasted spark' coil to me, one coil feeds two plugs (one cylinder on ignition stroke, the other on exhaust) and it's capable of some decent current too.

Ford Mondeo era coil pack would probably work, they're for a four cylinder engine so it's actually two coils in one pack but the three pin connector has 12V on one in and then you drive one coil using one of the other pins, ignore the third pin unless you want to use both coils.
Top of pagePrevious messageNext messageBottom of page Link to this message

mikehibbett
:::: Super User ::::
Username: mikehibbett

Post Number: 1548
Registered: 04-2005


Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, 03 March, 2014 - 08:29 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

By the way, I saw an interesting article on doing it "the other way around", re-wiring a microwave oven transformer to give low volts with lots and lots of amps.

http://mad-science.wonderhowto.com/how-to/turn-microwave-oven-transformer-into-high-amperage-metal-melter-0140772/
------------------------------------------------------------
web: mjhdesigns.com twitter: mikehibbett
------------------------------------------------------------
Top of pagePrevious messageNext messageBottom of page Link to this message

dave_squibb
Frequent Contributor
Username: dave_squibb

Post Number: 337
Registered: 04-2005

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, 04 March, 2014 - 04:04 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

http://www.ebay.co.uk/itm/CAMARO-FIREBIRD-V6-IGNITION-COIL-1993-2002/351015312234?_trksid=p2047675.c100011.m1850&_trkparms=aid%3D222006%26algo%3DSIC.FITP%26ao%3 D1%26asc%3D20140107083358%26meid%3D5250444572297835392%26pid%3D100011%26prg%3D20140107083358%26rk%3D1%26rkt%3D10%26sd%3D350447922166
Top of pagePrevious messageNext messageBottom of page Link to this message

perro
Frequent Contributor
Username: perro

Post Number: 178
Registered: 10-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Wednesday, 05 March, 2014 - 08:09 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Gordon & Dave

Thanks for your advice. The Elan & firebird coils appear to be the similar, so I've just bought one from eBay (UK!!)

Still a little more than I was originally hoping to pay - but it's brand new and seems to match the article recommendation, so hopefully I won't be wondering (when things don't work!) "is it the coil, or my construction that's at fault" - I'll know the answer ;-)



Cheers
Top of pagePrevious messageNext messageBottom of page Link to this message

arw
Board Administrator
Username: arw

Post Number: 1526
Registered: 04-2005

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, 10 March, 2014 - 08:22 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

A video of the finished thing is at www.siliconchip.com.au/videos/jacobsladder
Alan W -- EPE

More online resources at www.epemag.net
Top of pagePrevious messageNext messageBottom of page Link to this message

mikehibbett
:::: Super User ::::
Username: mikehibbett

Post Number: 1553
Registered: 04-2005


Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, 10 March, 2014 - 09:17 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Brilliant!

I expect Vincent Price to post on the thread next.

Great though, I want one for the lab.
------------------------------------------------------------
web: mjhdesigns.com twitter: mikehibbett
------------------------------------------------------------
Top of pagePrevious messageNext messageBottom of page Link to this message

perro
Frequent Contributor
Username: perro

Post Number: 179
Registered: 10-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, 24 March, 2014 - 08:51 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

The parts list doesn't get easier....

Does anyone know where to get the IGBT, ISL9V5036P3, at a reasonable price in the UK? Or, better, does anyone know (with certainty) of a suitable readily available equivalent?


Apparently this is OBSOLETE!
Top of pagePrevious messageNext messageBottom of page Link to this message

billy
Regular Contributor
Username: billy

Post Number: 48
Registered: 12-2012

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, 24 March, 2014 - 09:27 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

plenty on Ebay that will ship to the UK
Top of pagePrevious messageNext messageBottom of page Link to this message

gordon
Frequent Contributor
Username: gordon

Post Number: 981
Registered: 05-2005

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, 24 March, 2014 - 10:55 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Seems to be a fairly specialised part for auto ignition coil switching. Littlediode.com list it, but about £13 with delivery! I believe Digikey and Mouser, stock it for a few pounds, so Phonoplug might be able to help.
Top of pagePrevious messageNext messageBottom of page Link to this message

cjay
Frequent Contributor
Username: cjay

Post Number: 54
Registered: 10-2013

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, 25 March, 2014 - 08:29 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Check the DIY EFI and Megasquirt suppliers, they list it for around $2.50 plus shipping.
Top of pagePrevious messageNext messageBottom of page Link to this message

arw
Board Administrator
Username: arw

Post Number: 1531
Registered: 04-2005

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, 25 March, 2014 - 10:02 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Just a reminder that posts about component sources, where to buy X etc., updates or patches are best made in Shop Talk please, so they are readily available for future reference and won't be buried in the main forum.

When such a thread has bottomed out I tend to move them to Shop Talk for that reason.

Thanks

Alan W
Alan W -- EPE

More online resources at www.epemag.net
Top of pagePrevious messageNext messageBottom of page Link to this message

perro
Frequent Contributor
Username: perro

Post Number: 180
Registered: 10-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, 25 March, 2014 - 01:15 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Thanks, everyone, for the suggestions. I want to try to avoid importing from outside Europe, wherever possible. On the other hand, I'm not paying 13 quid for an IBGT either. That said, Digikey & Mouser indicate "obsolete" (Mouser say to "call"), so, at this stage, it looks like this will most likely be an import unless anyone can nominate an equivalent (??)

Alan, thanks for the reminder. Understood. Apologies for breaking protocol.
Top of pagePrevious messageNext messageBottom of page Link to this message

billy
Regular Contributor
Username: billy

Post Number: 49
Registered: 12-2012

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, 25 March, 2014 - 01:30 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Poland is in Europe for a cost of approx £4.48 delivered.
http://www.ebay.co.uk/itm/ISL9V5036P3-360V-N-Ch-Ignition-IGBT-Insulated-Gate-Bipolar-Transistor-D2-pak-/271353674435?pt=LH_DefaultDomain_0&hash=item3f2df07ac3
Top of pagePrevious messageNext messageBottom of page Link to this message

gordon
Frequent Contributor
Username: gordon

Post Number: 982
Registered: 05-2005

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, 25 March, 2014 - 04:57 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

ISL9V5036P3_F085 looks to be the latest version currently in production.

Administration Administration Log Out Log Out   Previous Page Previous Page Next Page Next Page