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LL2773-5.0A
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Lundahl High Current Choke, LL2773-5.0A
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Lundahl High Current Choke, LL2773-5.0A
The LL2773 is a 2 coil choke for tube/valve filament current filtering or other high current low voltage applications.
The coil is wound using our standard high internal isolation technique with isolation foil between each copper layer. The core is an audio C-core of our own production.
Weight: 2.5kg
Static resistance of each winding: 0.22 Ohm
Recommended max continuous current through each winding (10W heat dissipation): 4.7A
Isolation between windings / between windings and core: 4 kV / 2 kV
Coils in series
Approx. Inductance: 65mH
Recommended DC current (1.25 T): 5 A
Saturating current (2.0 T): 8 A
Max. ripple voltage at rec. DC current (Ripple voltage is approx. 0.42 x input voltage): 70 V rms / 100 Hz
Coils in parallel
Approx. Inductance: 16 mH
Recommended DC current (1.25 T): 10 A
Saturating current (2.0 T): 16 A
Max. ripple voltage at rec. DC current (Ripple voltage is approx. 0.42 x input voltage): 70 V rms / 100 Hz
Note! The LL2773 can also be used in choke input power supplies.
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