You can find fiberglass eraser pens at your local Radio Shack. I one they currently stock is a bit different than the one I used years ago to clean tube pins. Here's a link: Pro-Grade Abrasive Fiberglass Pen
You can find fiberglass eraser pens at your local Radio Shack. I one they currently stock is a bit different than the one I used years ago to clean tube pins. Here's a link: Pro-Grade Abrasive Fiberglass Pen |