[AMRadio] Bad news on BC1-J

wwd at netheaven.com wwd at netheaven.com
Wed Mar 20 18:34:11 EST 2002


Turns ratios is how you sort out transformers. Put 10vac into one winding
and measure what voltage you get at another winding. That will give you
the turns ratio. DC resistance by itself tells you, what?? 

In <3C98F6BF.922429C8 at pdq.net>, on 03/20/2002 
   at 02:53 PM, WA5SVL <kdud1 at pdq.net> said:

>Dan these are all out of Collins V-2 and V-3, 4-400 modulators, input is
>100ohms and output is 100 ohms, Dudley

>Dan Hall wrote:

>> Dudley:
>> Curiously neither the manual or the transformer reveal anything about the
>> ratio or impedances. The tubes are 833As modulating 833As. A pair each,
>> though I am running just one in the PA.
>>
>> Dan
>> ----- Original Message -----
>> From: "WA5SVL" <kdud1 at pdq.net>
>> To: <amradio at mailman.qth.net>
>> Sent: Wednesday, March 20, 2002 9:57 AM
>> Subject: Re: [AMRadio] Bad news on BC1-J
>>
>> > Hello let me know what the primary and sec resitance are I have a couple
>> of I kw mod
>> > transformers , and what tubes you are running, WA5SVL
>> >
>> > wwd at netheaven.com wrote:
>> >
>> > > Dan,
>> > >
>> > > Are you sure it really is a mod xfmr? Maybe a power xfmr pressed into
>> mod
>> > > duty?? It has happened more than once and they can function failry well.
>> > > Your description of seems odd, though.
>> > >

Bill    N2KQA
-- 
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wwd at netheaven.com  To the warriors go the spoils of war; to the hindmost .  .  the surplus.
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