Zipzapslot

zig zag slotTo get a good resonance frequency point in the reflection coefficient graph unequal slots are inserted below the zzag fat arrow-shaped. In this structure each slot reducedZ Zag is a Trade Stim. by Groetchen Tool & Mfg. Co. (circa 1931). Information about it's history and background, photos, repair help, manuals, for sale and wanted lists, and census survey is