Mullard Magic: For All Your Vintage Valve and Radio Needs!
SLUG TUNED CERAMIC COIL FORMERS 3/8" (9.5mm) DIAMETER, 1" (28mm) LENGTH - SLUG TUNED FERRITE, CAMBRIDGE THERMIONIC CORPORATION
THREADED FERRITE, (7.7mm) DIAMETER, 1.5" (37mm) LENGTH , SLUG TUNED FERRITE, CAMBRIDGE THERMIONIC CORPORATION, CTC