truSDX - How to Avoid the Most Common Mistake When Building 

I usually burn the coating off with the soldering iron. When the wire is too thick I use a carpet knife. Mine ran on rx right away. However, the swr was huge. After much fiddling with the swr cores I finally found out that my load was not 50 Ohms and the bad swr was correct. The pcb material is excellent. What surprised me most was the harmonic suppression. On 80m about -48dB and then from band to band lower down to -55dB on 20m, my highest band in this rig. Thanks for your video!

Thanks for helpful video

Hi! Just a quick tip that does not involve scraping: Take one aspirin pill (Aspirin, also known as acetylsalicylic acid) and put the copper wire on top of it; then hit it with the solder iron tip; The tip of the iron must be saturated with solder and flux; the heat will melt the aspirin pill surface and that in turn will dissolve the enamel and in the same time will wet the copper wire with solder. Some fumes will be created and you really really really don't want to breath those toxic fumes. For thicker copper wire you can also try folded sandpaper cause you do two sides at once, but thinner than 0.2 mm , do the aspirin tablet.

them little dinky wire cutters make good scrapers. Altho, I shall confess, fire doth burn that enamel when hot enough!

How about a pencil torch?

AG4JT….