Find me a tractor coil with a resistor inside it?

Posted by John T on May 26, 2012 at 12:23:46 from (216.249.82.117):

In Reply to: Re: Farmall 400 burning up points posted by 504 on May 26, 2012 at 11:48:13:

If you have or can find a circa 1940's and 1950's tractor coil containing an actual discrete "Resistor" hidden away somewhere inside the can Id LOVE some information on it cuz Ive (tractor dealer, farmer and electrical engineer for yearsssssssssssss for that vintage tractors) NEVER SEEN OR HEARD OF A SINGLE ONE and Ive seen, bought n sold a ton of them. The problem is many lay persons mistakenly refer to 12 volt coils as "Internally Ballasted" while the fact is theres no internal stand alone discrete "resistor" hidden away somewhere inside the can on "most" the old tractor coils in the forties and fifties etc. NOTE there were some very early auto applications that had coils with a divider inside (had like a ring on the outside of can) that did indeed have a discrete "resistor" contained insdie the can butttttttttttttt Ive NEVER seen such a coil on ANY 40'S 50's vintage tractors 6 or 12 volt THATS WHY IM ASKING YOU FOR INFO IM NEVER TOO OLD TO LEARN

NOW AS FAR AS WHERE ANY RESISTOR IS IN A SERIES CIRCUIT AND WHY THE CURRENT DONT CHARGE RERGARDLESS WHERE ITS LOCATED IN THE CIRCUIT (This goes to the issue of he may have too much coil current which is causing premature points burning)

A series low voltage primary ignition circuit consists of the source (battery),,,,,,,,,, the coils LV primary winding + any ballast,,,,,,,,,,the points (switching device),,,,,,,,then back to ground and the opposite battery post......The current in that LV primary ignition circuit = E/R and the current is the same regardless where the ballast is located!!!!!!!!!!!!

NOTE IM NOTTTTTTTTTTT saying an external ballast isnt normally located between the ign switch and coils input versus between coils output and distributor (where points are) Im ONLYYYYYYYYYYYYYYYYYY saying the series loop coil and points current is equal to E/R REGARDLESS where the ballast is located... IE if the points are switching too much current, that amount of current (E/R) isnt gonna change cuz you chnage the location of the resistor in the series loop circuit SO DONT ANYONE HAVE A CALF

Again with all due respect and NOT wanting to fight or argue ONLY LEARN,,,,,,,, if you have info on tractor coils that have an internal stand alone discrete "resistor" tucked away inside the can PLEASE INFORM ME !!!!!!!

ENGINEERING AND TRADE INFORMATION

What engineeres and technicians refer to as "Wire" still has some degree of "ResistANCE" BUT ITS NOT COMMOMLY REFERRED TO AS A ResisTOR ITS CALLED WIRE !!!!!!!!!!!!

A "ResisTOR" conducts current just like wire does but its called in the trade a "Resistor" NOT WIRE Well DUHHHHHHHHHHH

If you go to an electronics shop and ask for WIRE they sell you wire, if you ask for a resistor they sell you a resistor I DONT KNOW ANYONE WHO WOULD WANT TO BUY WIRE GO INTO A SHOP AND ASK FOR A RESISTOR DO YOU????????

Hope this helps

Best Wishes, God Bless Yall
Thanks vets, Happy Memorial day

John T

Replies:

• Re: Find me a tractor coil with a resistor inside it? Theron Dickinson 11:56:21 05/27/12 (0)
• Re: Find me a tractor coil with a resistor inside it? pete 23 12:51:04 05/26/12 (1)
  • Re: Find me a tractor coil with a resistor inside it? John T 13:05:46 05/26/12 (0)

Add a Reply Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Optional Video Title: Optional Video URL: Advanced Posting Options Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.   Advanced Posting Tools   Upload Photo  Select Gallery Photo  Attach Serial # List  Return to Post

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]