Ah. I didn't realise the transistor couldn't handle full battery voltage and coil current. I thought as long as it has a heat sink and kept away from external heat sources it would manage the slightly higher current with no problems. We live and learn.Dave999 wrote:if you miss it out of your oarnge box set up, the coil will allow much more than 3 amps to flow due to its low primary resistance and that current flow will burn out the big transistor mounted in your orange box....
Resolved. - Dead in the field. Ignition module ?
Moderator: Moderators
- Dave-R
- Posts: 24752
- Joined: Sun Apr 18, 04 11:23 pm
- Location: Dave Robson lives in Geordieland
- Contact:
-
- Posts: 7309
- Joined: Fri Nov 04, 05 8:40 pm
- Location: Cornwall
cheers Ade, I’m ok with it getting hot, I mentioned it so we understand that is it working and not just there for showAdrian Worman wrote:The ballast is a supposed to get very hot, it's doing it's job

Si
1970 Charger 500
383 | 4bbl | 727 column | PAS | PAB | buckets/buddy - check out my photos HERE
If you don't want another same old brand-new car ... you could be DODGE MATERIAL
1970 Dodge Charger Registry - https://www.1970chargerregistry.com/
1970 Charger 500
383 | 4bbl | 727 column | PAS | PAB | buckets/buddy - check out my photos HERE
If you don't want another same old brand-new car ... you could be DODGE MATERIAL
1970 Dodge Charger Registry - https://www.1970chargerregistry.com/
cheers Rob, I have a PN8202 already relocated vertical to the inner fender below the washer bottleRobTwin wrote:and dont forget a standard, oil-filled coil, should be fitted vertically, or upright, or it too will get hot as all the internals will not be cooled by the oil

Si
1970 Charger 500
383 | 4bbl | 727 column | PAS | PAB | buckets/buddy - check out my photos HERE
If you don't want another same old brand-new car ... you could be DODGE MATERIAL
1970 Dodge Charger Registry - https://www.1970chargerregistry.com/
1970 Charger 500
383 | 4bbl | 727 column | PAS | PAB | buckets/buddy - check out my photos HERE
If you don't want another same old brand-new car ... you could be DODGE MATERIAL
1970 Dodge Charger Registry - https://www.1970chargerregistry.com/
cheers Dave, I will leave well alone then, the car is running fine, many thanks for your most elaborate answer, more a small book than an answerDave999 wrote:if you miss it out of your orange box set up, the coil will allow much more than 3 amps to flow due to its low primary resistance and that current flow will burn out the big transistor mounted in your orange box



Si
1970 Charger 500
383 | 4bbl | 727 column | PAS | PAB | buckets/buddy - check out my photos HERE
If you don't want another same old brand-new car ... you could be DODGE MATERIAL
1970 Dodge Charger Registry - https://www.1970chargerregistry.com/
1970 Charger 500
383 | 4bbl | 727 column | PAS | PAB | buckets/buddy - check out my photos HERE
If you don't want another same old brand-new car ... you could be DODGE MATERIAL
1970 Dodge Charger Registry - https://www.1970chargerregistry.com/
no probs fellas
its just the usual brain dump
dave yes todays transistors can probably handle those currents no problem
ceramic and semiconductor tech has come a long way...
FBOs igntion is supposed to work well at 12-15 volts no balast and their own coil so they obviouly put some time in there.
steve a magneto would be fun but much better when crank driven...
the weight of the internals and the fact they are hard to turn kinda dictates not using them on a standard cam driven screw gear and in some cases plastic drive gear for street kinda stuff
they worked quite well on VW aircooled Drag race engines cos you could do away with the alternator and fan and cliam back something daft like 33% of your power that the fan was eating up. no good for the street mind run it longer than a few minutes and it would overheat the oil
Dave
its just the usual brain dump

dave yes todays transistors can probably handle those currents no problem
ceramic and semiconductor tech has come a long way...
FBOs igntion is supposed to work well at 12-15 volts no balast and their own coil so they obviouly put some time in there.
steve a magneto would be fun but much better when crank driven...
the weight of the internals and the fact they are hard to turn kinda dictates not using them on a standard cam driven screw gear and in some cases plastic drive gear for street kinda stuff
they worked quite well on VW aircooled Drag race engines cos you could do away with the alternator and fan and cliam back something daft like 33% of your power that the fan was eating up. no good for the street mind run it longer than a few minutes and it would overheat the oil
Dave
The Greater Knapweed near the Mugwort by the Buckthorn tree is dying
Did you source one Ade ?Adrian Worman wrote:Yeah that's the same product I posted a link to on the previous page, funnily enough it was exactly that article I was quotin from![]()
Look good don't it?
I'm gonna get one anyhow and check it out Rob/Stu
"Cum homine de cane debeo congredi." Woof.
Current Charger status - "Working and awesome"
Current Charger status - "Working and awesome"

- Adrian Worman
- Posts: 4376
- Joined: Mon Aug 02, 10 1:23 pm
- Location: Milton Keynes
Well I thought I'd got it on the way but me ginge never done it
Gonna do it me self this weekend.... why? You want one? No sweat mate if you're interested I'll add it on, or if I get enough interest I may phone em and see if I can't get some discount and buy a dozen or so

Gonna do it me self this weekend.... why? You want one? No sweat mate if you're interested I'll add it on, or if I get enough interest I may phone em and see if I can't get some discount and buy a dozen or so
Jesus built my hot rod
72 Challenger
65 Barracuda
72 Challenger
65 Barracuda
the price is on the link Morgan ...
http://www.thertgarage.com/products.html
sit down before you have a look

http://www.thertgarage.com/products.html
sit down before you have a look



Si
1970 Charger 500
383 | 4bbl | 727 column | PAS | PAB | buckets/buddy - check out my photos HERE
If you don't want another same old brand-new car ... you could be DODGE MATERIAL
1970 Dodge Charger Registry - https://www.1970chargerregistry.com/
1970 Charger 500
383 | 4bbl | 727 column | PAS | PAB | buckets/buddy - check out my photos HERE
If you don't want another same old brand-new car ... you could be DODGE MATERIAL
1970 Dodge Charger Registry - https://www.1970chargerregistry.com/
- Adrian Worman
- Posts: 4376
- Joined: Mon Aug 02, 10 1:23 pm
- Location: Milton Keynes
Charger wrote:the price is on the link Morgan ...
http://www.thertgarage.com/products.html
sit down before you have a look![]()
![]()
Bananarama! I missed that. $190 ?!?! errr - dont worry about it Ade, as they say on Dragons Den "I'm out". Sorry about that.
Will wait and see if price comes down (like half!) but otherwise its spare orangebox in the boot I think !!

"Cum homine de cane debeo congredi." Woof.
Current Charger status - "Working and awesome"
Current Charger status - "Working and awesome"
