Variable Shielded Coil Forms - Type L-57
Assy No. |
Freq. Range (MHz)1 |
Material/Permeability |
Assy AL (nH/t2) |
Tuning Ratio (max:min) |
Colour Code |
L-57-2 |
1.0 - 10 |
2/10.0 |
13.0 |
2:1 |
Red |
L-57-6 |
10 - 50 |
6/8.5 |
12.0 |
2:1 |
Yellow |
L-57-10 |
25 - 100 |
10/6.0 |
10.5 |
2:1 |
Black |
L-57-17 |
50 - 150 |
17/4.0 |
7.0 |
1.4:1 |
Violet |
Coil Assembly |
Vertical Dimensions (blue=mm) |
Base View |
Can |
Shield Pot |
L-57-( ) |
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 6 pin |
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 |
 |
 |
- 1: freq. range for best Q. Material is effective over much greater range.
- Drawings not to scale. Dimensions in inches (black), mm (blue).
Wire Size (awg) |
20 |
22 |
24 |
26 |
28 |
30 |
32 |
34 |
36 |
38 |
40 |
Turns (single layer/full winding) |
5/10 |
6/24 |
8/32 |
10/60 |
13/104 |
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01/02/05
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