ZERO OHM COIL

Air cored coils with baked varnish windings
Air cored coils are, for physical reasons, unbeatable as far as accurate pulse reproduction
and freedom from distortion are concerned The windings of baked varnish coils are made
using a special wire. After the coil has been wound it is heated up causing an additional layer
of varnish on the wire to melt, bonding the individual windings firmly together. The effect is
similar to that achieved with vacuum impregnation, but this process is cheaper for small
coils. Baked varnish coils are available with winding diameters from 0.71mm – 1.40mm. All
series are identified with a “b” prefix.
Technical Specifications:
Tolerance: Max 3%, typically 1.5%
Electrolyte copper 99.99 % pure
Coil forms: PA, glass fibre reinforced
round coil form d l d1 e1 e2
mm mm mm mm mm
30/17 30 20 5.2 3 9
36/8 36 10 5.2 5 12
40/17 40 20 5.2 5 12
58/15 58 18 5.2 6 20
58/18 58 21.7 5.2 10 20
58/25 58 27.7 5.2 10 20
70/25 70 29 5.2 10 22.5
K7 77 27.8 5 6 26
Air cored coils with backed varnish wire 0.71 mm BL71
mH OHM KÖRPER €/Stk
0,10 0,26 36/8
0,12 0,28 36/8
0,15 0,32 36/8
0,18 0,34 36/8
0,22 0,38 36/8
0,27 0,45 36/8
0,33 0,51 36/8
0,39 0,51 36/8
0,47 0,57 30/17.5
0,56 0,64 30/17.5
0,68 0,79 40/17.5
0,82 0,89 40/17.5
1,00 1,02 40/17.5
1,20 1,08 40/17.5
1,50 0,96 58/15
1,80 1,15 58/15
2,20 1,34 58/15
2,70 1,53 58/15
3,30 1,79 58/15
3,90 2,08 58/15
4,70 2,39 58/15
5,60 2,77 58/15
6,80 3,28 58/15
8,20 3,30 58/25
10,00 3,85 58/25
15,00 5,04 70/25
22,00 5,61 70/25
27,00 6,44 70/25
e2
e1
d
l
d1
9