[TexMac]

This explanation was found when reworking one of my sets. I carefully detach the leads to the actual cap inside, remove the core and restuff the cardboard tube with the appropriate axial lead yellow cap, reattaching the coil leads as before. I know just enough theory to be dangerous, and I feel certain the smaller amount of metal in the newer caps must shift the response some, but I suspect such an arrangement was sloppy and a little broad in frequency response to begin with. So far, I have not found any feedback problems in sets I have done this way.
[Image: http://i75.photobucket.com/albums/i305/m...ensers.jpg]