RODS or FERROXCUBE cod. 1-3 pcs 4-9 pcs 10+pcs small ferrites used as support ROUNDED ∅ 1.5 x 11 mm BF - 1 10pz = 0,80 to build RF choke ROUNDED ∅ 1.5 x 28 mm BF - 4 10pz = 1,20 ROUNDED ∅ 5 x 25 mm 3B1 Philips BF - 7 0,35 0,35 0,30 ROUNDED ∅ 8 x 61 mm BF - 10 1,30 1,20 1,10 ROUNDED ∅ 8 x 140 mm μ i 300 28 g BF - 50 2,50 2,20 2,05 ROUNDED ∅ 8 x 140 mm μ i 400 29 g BF - 51 2,20 1,93 1,78 ROUNDED ∅ 10 x 80 mm μ i 400 25 g BF - 53 1,50 1,35 1,20 ROUNDED ∅ 10 x 200 mm μ i 300 65 g BF - 54 4,90 4,40 4,15 ROUNDED