The Ford Barn - Coil Tester

The Ford Barn (https://www.fordbarn.com/forum/index.php)

- Model T (1909-1927) (https://www.fordbarn.com/forum/forumdisplay.php?f=2)

- - Coil Tester (https://www.fordbarn.com/forum/showthread.php?t=356000)

blownford

03-01-2026 09:53 AM

Coil Tester

I picked this up off eBay. It was listed as a Model T coil tester however I don't think it is.
Basically it's just a wood box with a KW coil mounted inside.

On the outside there are 2 power wires with alligator clips, a spark plug cable and an on-off switch.

The coil is screwed to the outer box and the 3 connections are soldered to the coil. Would be difficult to put switch to a different coil There are remnants of a label on the box but not legible.

Any Idea what this was used for?

blownford

03-01-2026 09:58 AM

Re: Coil Tester

3 Attachment(s)

Messed up Here's pics

stevests

03-01-2026 10:39 AM

Re: Coil Tester

WAG - electric fence power source ?

blownford

03-01-2026 11:30 AM

Re: Coil Tester

Well that could be, I also understand the coils were used on hit/miss engines so maybe something to do with that.
One thing for sure, because its been protected inside the box, the coil looks brand new.

rotorwrench

03-01-2026 02:09 PM

Re: Coil Tester

It could be used to test spark plugs or perhaps a timer's circuits.

olivia_49

03-11-2026 02:18 PM

Re: Coil Tester

Seems like a simple DIY spark tester, not a real Model T tester, just a coil in a box with clips and a switch to see if it fires.

normren

03-12-2026 12:19 PM

Re: Coil Tester

Its a homemade spark plug / ignition coil tester, not specifically a Model T coil tester.

All times are GMT -5. The time now is 03:07 AM.