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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: How to use Hammond Choke as Power filter? posted by andy2667 on October 21, 2009 at 06:04:58:
This tweak works because the inductance of the power supply filter chokes in question, 5 henrys or 10 henrys, is enough to limit the 60 Hz current when they are connected to the 120 volt mains. If you are located where the mains voltage is 240 volts, be sure to use at least 10 henrys to avoid drawing excessive current.
Be sure the alternative chokes you use are rated in henrys, not millihenrys. There are large chokes in the millihenry range, and connecting one of the these to the mains will result in a spectacular test of your circuit breaker.
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Follow Ups
- Be clear on the inductance ratings of the chokes. - Al Sekela 15:10:12 10/22/09 (5)
- RE: Be clear on the inductance ratings of the chokes. - andy2667 16:41:45 10/22/09 (4)
- I'm not sure where the DC resistance guidelines came from. - Al Sekela 15:32:28 10/23/09 (3)
- RE: I'm not sure where the DC resistance guidelines came from. - andy2667 16:25:37 10/23/09 (2)
- Some starting points... - Al Sekela 15:04:09 10/24/09 (1)
- RE: Some starting points... - andy2667 22:53:46 10/25/09 (0)
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