Replacing Multimeter Test Lead

by hassi in Workshop > Tools

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Replacing Multimeter Test Lead

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This is my first Instructable...Be kind or not

(Disclaimer: I didn't check every Instructable to determine if this has already been presented (there's just too darn many). If this is a repeat, I apologize.)

Some time ago a test lead on my el cheapo multimeter came off and was subsequently lost. Using the frayed ends of the lead wire worked, but not worth a hoot.

I visited our local Radio Shack and a couple of other shops to find a replacement lead but the cheapest I could find was $6.95 (US) for a pair; I could have replaced the whole thing for that.

Soooooooo

Step One

01 Parts.JPG
This is a pretty basic job requiring minimal skills, materials and tools.

A 6 penny finish nail, an old pen barrel sans ink "tube," soldering iron and solder (not shown), a bit of heat-shrink tubing, an X-Acto knife (or substitute) (not shown either) and our favorite, a hot glue gun and glue (also not shown).

I measured the ink barrel against the non-broken test lead for length then cut the barrel to length (measured from the tip). Save the cut-off end of the barrel as this will make good filler in your extra parts box.

Step Two

02 Tip Soldered.JPG
After exposing about an inch (2.5 cm) of the wire I made a quick wrap around the head end of the finish nail and soldered them together.

Step C

03 Hot Glue.JPG
After the new lead tip cooled, (its now graduated from being a simple nail to an integral part of a precision instrument), I slid on the heat-shrink tubing that will cover the to-be-glued end and then popped the newly tipped wire lead down into the pen barrel letting about 3/4" (1.75 cm) of the once lowly nail protrude through the pen barrel tip.

I then hot glued around the wire end, filling up some of the ink barrel. I also shot a small dab of hot glue around where the lead protruded

Step Last

04 New Lead.JPG
And that's it.

If I had them, I would have used a red pen and red heat-shrink tubing. But since I had neither I'll just have to live with it.

Total cost: $0.00 (US) as I had everything already...I'll bet you do too.

Thanks for reading this far...