Analog electrical tester

[skipskip]

heavy duty insulation

accurate scale

safe for  all applications

What is is for?

coil/spark?

DSCF8283 by Skip Albright, on Flickr


DSCF8285 by Skip Albright, on Flickr

[lptools]

Just a guess, battery cells???

[JoeCB]

Is that a glass tube with a visable "spark" gap? If so, it's spark tester, for ignition systems.

Joe B 

[john k]

I can see this in use on a flathead engine.  Long spike grounds to the head, short one pierces the spark plug boot.   Used to be a lot of problems with high resistance plug wires, a problem that has gone away.

[bill300d]

I can see this in use on a flathead engine.  Long spike grounds to the head, short one pierces the spark plug boot.   Used to be a lot of problems with high resistance plug wires, a problem that has gone away.

+1 What I was thinking too.

[Bill Houghton]

I can see this in use on a flathead engine.  Long spike grounds to the head, short one pierces the spark plug boot.   Used to be a lot of problems with high resistance plug wires, a problem that has gone away.

And testing the resistance in the plug wires used to be a standard step in doing a tuneup - back in the days of points and condensers.

[p_toad]

   Back in the day (before i had a timing light and dwell meter), i used to just tune up my '64 Mustang by replacing parts and then listening as i made adjustments.   Somehow i don't think that would work now.