UNE-EN 125401:1991 BDS: ADJUSTERS USED WITH MAGNETIC OXIDE (FERRITE) CORES FOR USE IN INDUCTORS AND TUNED TRANSFORMERS. (Endorsed by AENOR in November of 1996.)
1996UNE-EN 125401:1991 BDS: ADJUSTERS USED WITH MAGNETIC OXIDE (FERRITE) CORES FOR USE IN INDUCTORS AND TUNED TRANSFORMERS. (Endorsed by AENOR in November of 1996.)