The T pin is one of my favorite back probe tools. I was first showed them by Bill Fulton years ago. While I don't believe he came up with the idea I really liked it. There are many brands of back probe devices for sale that are very nice. I like cheap when possible and the way I mutilate these things I'm not going to spend anymore than 20 bucks.

I take the humble T pin found in fabric stores all over. Back Probe

I wrap the wire around it. Pre solder

Solder it. Soldered

Cut off the T. T cut off

Install heat shrink and eyelet . Finished product

Its cheap, very easy to get into close places without shorting other T pins, and harder to loose.

I have made and given away so many of these over the years . Most people really like them and I hope you can find a use for them as well .

Mike from Ohio

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