list wisdom needed Triad MS90040

[Wilson Lamb]

The windings are obviously independent, since there are four wires.

I don't think they would put two windings on the same core, because the 
first one after the rectifier would induce ripple into the second...

The old National HRO doghouse power supplies have xfmrs and chokes potted in 
the same tarball.

WL
----- Original Message ----- 
From: "J Forster" <jfor at QUIK.COM>
To: <BOATANCHORS at LISTS.TEMPE.GOV>
Sent: Friday, March 06, 2009 4:28 PM
Subject: Re: list wisdom needed Triad MS90040


> Excite one winding with a few volts of AC and measure what you get on the 
> other.
> Also, are there any voltage ratings on it?
>
> Best,
> -John
>
> ============
>
> Michael Tortorella wrote:
>
>> G'day, all: I am building up a HB 516F-2 for my S-Line and have this
>> interesting Triad "two chokes in one package" (the MS90040).  It has 4
>> terminals, two for each choke.  The package states you can put the two
>> chokes in series for 25H, or both in parallel for 6.3H.  My question is, 
>> can
>> I use this as if it were two separate chokes?  I want to use one in the 
>> HV
>> supply (800V) and one in the LV supply (300V).  I am worried about 
>> possible
>> mutual inductance.  Can anyone offer advice?
>>
>> Thanks and 73
>>
>> Mike W2IY
>>
>>
>>
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