03-13-2014, 12:44 PM
![Icon_redface Icon_redface](https://philcoradio.com/phorum/images/smilies/icon_redface.gif)
This morning it was oscillating very poorly, and died every time it was tuned through 850-900. I decided to redo the coil again. This time it came out perfect, exactly the way I wanted to do it in the first place. Put it back in, and I'm back to square one...
![Icon_mad Icon_mad](https://philcoradio.com/phorum/images/smilies/icon_mad.gif)
From other people who have had success, what is the best substrate to use between the windings? I've also tried teflon tape, which sort of worked, but made a good winding nearly impossible.