[Boatanchors] How much does Henry weigh?

[J. Forster]

It's essentially impossible to say. It could be wound with <#10 wire and be a
fraction of a Henry, or be wound with >#34 wire and be hundreds of Henries.
The DC resistance would give you some information. Also, is the core gapped or
not. That can change things by 10x or more.

A rule of thumb for iron is 40 W/ lb at 60 Hz for transformers. (a 120 W
transformer would have 3# of silicon steel)

Sometimes a transformer can be used as a choke, but you have to be much more
specific.

-John



StephenTetorka at cs.com wrote:

> OK, you Boatanchorites - I need your expertise.
>
> I have this 15 Henry choke.
> I can't read its current rating...as I wore it off in the 'cleaning'.
> I can clearly see a "5" and there is another partial number in front of it
> that might be a 2.
> Might it be a 0.25 amp rating?
>
> Dimensions are nominally 6 high x 5 x 4 inches.
> It weighs 18 pounds ( on the XYL's scale I should mention ).
>
> What's your estimate of Henries?
>
> And, while we're at it - it is my understanding that a transformer can be
> used as a choke at times in certain conditions - please advise.
>
> Thanks,
> Steve
> WA2TAK