Insulators Antenna Feed Through

Feed thru insulators for lead in wire from a fixed antenna.

Type 4125 - Inner has threaded rod with twin nuts on either end

Small - 62mm long tip to tip 3/16" rod

Medium - 88mm long tip to tip 3/16" rod

Large - 140mm long tip to tip 1/4" rod

These units are designed to avoid aerial transmission leakage of course pass an aerial cable through via stud terminals on either side.