[Boatanchors] FS: Large 4.25 Henry Choke

[J. Forster]

That's the point. 800 W is a lot of internal dissipation.

-John

===============

> At the risk of receiving some scathing comments I have to say that the
> purpose of a power supply choke is to smooth rectified DC, not generate or
> dissipate power.  Judging from the size of this choke it is probably .45
> amps.  The resistance is the DC resistance so you have some idea of what
> the
> voltage drop across the choke will be when you design your power supply.
> 73,
> George
> W7HDL
>
>
> ----- Original Message -----
> From: "Lewis C. Emerson" <lemerson at juno.com>
> To: <jfor at quik.com>
> Cc: <boatanchors at puck.nether.net>; <armyradios at yahoogroups.com>
> Sent: Monday, February 28, 2011 3:51 PM
> Subject: Re: [Boatanchors] FS: Large 4.25 Henry Choke
>
>
>> John - If its 0.45 A doesn't that mean it's an 8 watt unit?  Mighty big
>> for just 8 watts.   Must be lotsa iron in there. - Doc, W4ITJ
>>
>> ---------- Original Message ----------
>> From: "J. Forster" <jfor at quik.com>
>> To: bcarling at cfl.rr.com
>> Cc: boatanchors at puck.nether.net, armyradios at yahoogroups.com
>> Subject: Re: [Boatanchors] FS:  Large 4.25 Henry Choke
>> Date: Mon, 28 Feb 2011 12:10:15 -0800 (PST)
>>
>> I don't think so.
>>
>> Power = I^2 * R
>>
>> = 4.45 ^2 * 39 = 800 W
>>
>> Maybe, 0.45 A
>>
>> -John
>>
>> =====================
>>
>>
>>> FOR SALE: General Electric ChokeType 7471984
>>>
>>> 4.25 H at 39 ohms resistance. Current rating appears to read
>>> 4.45A but not sure.  Made in Schenectady, NY
>>> Dimensions: 5"  X 3-5/8"  X 4-3/8" tall.
>>> Painted gray, potted, and as ceramic screw terminals with brass
>>> nuts on the top of one end.
>>> Mounts via four screw #10 holes in base.
>>>
>>> QTY 1 available for $15.00 plus shipping.
>>>
>>> 73 de AF4K, Bry Carling
>>> _______________________________________________
>>> Boatanchors mailing list
>>> Boatanchors at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/boatanchors
>>>
>>
>>
>> _______________________________________________
>> Boatanchors mailing list
>> Boatanchors at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/boatanchors
>>
>>
>>
>> _______________________________________________
>> Boatanchors mailing list
>> Boatanchors at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/boatanchors
>
> _______________________________________________
> Boatanchors mailing list
> Boatanchors at puck.nether.net
> https://puck.nether.net/mailman/listinfo/boatanchors
>
>