[Boatanchors] Large 4.25 Henry Choke

[Bry Carling]

The label is a little hard to read.  At first glance it looked like 445 amps, 
but I knew that wasn't rght.  I just couldn't spot a DOT -  "." 
anywhere on the faded label.

Now, I think I might see a faint "1" ahead of the 445A which would 
make more sense... That is to say 1.445 Amps... Seem reasonable? 
What a funny rating for them to use and be so specific. But then, it is G.E. 
(grin!)

Bry, AF4K


On 28 Feb 2011 at 16:00, George Babits wrote:

> 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
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> >>
> >
> >
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