What is this tool used for? its old

nisreo

New Member

Jul 22, 2006

178

0

0

Dec 16, 2008

#1

• Dec 16, 2008

• #1

So a friend of mine inherited some old tools from a dead uncle, and in the box was this thing. I think it may be some kind of amp meter that plugs into an oscilliscope or something. Looks like it goes inline of the negative battery terminal and cable, but I may be wrong. Any ideas? He was a GM tech if that helps.

 

Attachments

• TOOL1.webp

  16.1 KB · Views: 160
• TOOL2.webp

  12.6 KB · Views: 153

nisreo

New Member

Jul 22, 2006

178

0

0

Dec 16, 2008

#2

• Dec 16, 2008

• #2

Also, you cant see it in the picture but the two wires come down through the top of the black plastic plate and are soldered to opposite ends of the bottom metal plate.

 

DocG

5th graders > me. They're not bant

Sep 25, 2005

8,297

1,358

194

Cincinnati area

Dec 16, 2008

#3

• Dec 16, 2008

• #3

It would clamp onto both battery posts and explode.

 

nisreo

New Member

Jul 22, 2006

178

0

0

Dec 16, 2008

#4

• Dec 16, 2008

• #4

Between the negative terminal and negative cable?

 

Beasty306GT

Active Member

Dec 19, 2002

671

4

28

Oxford,Mass

Dec 16, 2008

#5

• Dec 16, 2008

• #5

i dont think so.....it would blow it up..never seen anything like that

 

nisreo

New Member

Jul 22, 2006

178

0

0

Dec 16, 2008

#6

• Dec 16, 2008

• #6

it wouldnt blow up, its just like using a dmm inline of a terminal and cable to read amperage. But im not sure if thats even what its for.

 

DocG

5th graders > me. They're not bant

Sep 25, 2005

8,297

1,358

194

Cincinnati area

Dec 16, 2008

#7

• Dec 16, 2008

• #7

I was just kidding. I was saying between the negative and positive posts.

I have no idea. Intersting though, with that mono plug on one end.

 

B

baskin

Member

Nov 1, 2003

152

0

17

Dec 16, 2008

#8

• Dec 16, 2008

• #8

I would say it's a carbon block. You disconnect one battery cable, connect one end of the sensor to the battery, the other end to the cable, and then crank the starter. The voltage across the block is proportional to the current through it.

 

DocG

5th graders > me. They're not bant

Sep 25, 2005

8,297

1,358

194

Cincinnati area

Dec 16, 2008

#9

• Dec 16, 2008

• #9

But what would it plug into?

My guitar amp?

 

nisreo

New Member

Jul 22, 2006

178

0

0

Dec 16, 2008

#10

• Dec 16, 2008

• #10

DocG2828 said:

I was just kidding. I was saying between the negative and positive posts.

Click to expand...

I have a tool for that. my snap-on 10mm wrench.

 

DocG

5th graders > me. They're not bant

Sep 25, 2005

8,297

1,358

194

Cincinnati area

Dec 16, 2008

#11

• Dec 16, 2008

• #11

nisreo said:

I have a tool for that. my snap-on 10mm wrench.

Click to expand...

I did it on accident once with an adjustable wrench. Luckily my reflexive hand yank also knocked the wrench off. Or I was gonna yell "fire in the hole" and run!

 

B

baskin

Member

Nov 1, 2003

152

0

17

Dec 16, 2008

#12

• Dec 16, 2008

• #12

DocG2828 said:

But what would it plug into?

My guitar amp?

Click to expand...

An adapter for a volt meter or an oscilloscope. The output would be in mV per Amp