10-13-2010, 11:27 PM
It seems like there was a bit of an engineering fad surrounding permeable slug tuning in the late 1940s, there were a few makes and models that used them and then the fad didn't go any further, maybe because the big three didn't go along with it . But in the 1950s everyone went back to the conventional LC condenser tuning except for car radios and FM sets, even most of those used a tuning condenser of some sort.
Best Regards
Arran
Best Regards
Arran