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   8 messages - Collapse all  -  Translate all to Translated (View all originals)
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Timjusttim  
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 More options Feb 29 2012, 1:11 pm
From: Timjusttim <cth...@gmail.com>
Date: Wed, 29 Feb 2012 10:11:57 -0800 (PST)
Local: Wed, Feb 29 2012 1:11 pm
Subject: need transformer
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I need 115 vac to 20 vac transcormer or wallwart.  Cash or trade.

 
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Timjusttim  
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 More options Feb 29 2012, 1:13 pm
From: Timjusttim <cth...@gmail.com>
Date: Wed, 29 Feb 2012 10:13:16 -0800 (PST)
Local: Wed, Feb 29 2012 1:13 pm
Subject: need transformer
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I need 115 vac to 20 vac transcormer or wallwart.  Cash or trade.

 
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Discussion subject changed to "{LVL1} need transformer" by jesco w
jesco w  
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 More options Feb 29 2012, 1:53 pm
From: jesco w <jasonpittman...@gmail.com>
Date: Wed, 29 Feb 2012 13:53:07 -0500
Local: Wed, Feb 29 2012 1:53 pm
Subject: Re: {LVL1} need transformer
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i have a new elk-trg2440  24vac 40va and a new elk trg1640 16.5vac 45va
if you want one an they will work ,  ill swing one by


 
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Timjusttim  
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 More options Feb 29 2012, 2:37 pm
From: Timjusttim <cth...@gmail.com>
Date: Wed, 29 Feb 2012 11:37:07 -0800 (PST)
Local: Wed, Feb 29 2012 2:37 pm
Subject: Re: {LVL1} need transformer
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I have a 24 vac already and was trying to avoid using a resistor to
lower voltage down to 20 vac. The problem is that we are not sure of
the voltage tolerance of the device we are powering. Only thing we
know is that it was originally powered by 20 vac. So thanks, but still
looking for 20 vac.

 
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Jeff Johnson  
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 More options Feb 29 2012, 2:46 pm
From: Jeff Johnson <jeffjohn...@gmail.com>
Date: Wed, 29 Feb 2012 14:46:32 -0500
Local: Wed, Feb 29 2012 2:46 pm
Subject: Re: {LVL1} need transformer
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Check the boneyard if you haven't already.  Jon's done a great job of
putting a huge collection of transformers/wallwarts in baskets, already
sorted.


 
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Timjusttim  
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 More options Mar 1 2012, 5:37 pm
From: Timjusttim <cth...@gmail.com>
Date: Thu, 1 Mar 2012 14:37:54 -0800 (PST)
Local: Thurs, Mar 1 2012 5:37 pm
Subject: Re: {LVL1} need transformer
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Jeff, thanks, I had already scoured the boneyard before I posted.

Still looking for a 115vac to 20vac transformer. Anyone????


 
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2600  
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 More options Mar 1 2012, 7:01 pm
From: 2600 <nomadra...@yahoo.com>
Date: Thu, 1 Mar 2012 16:01:47 -0800 (PST)
Local: Thurs, Mar 1 2012 7:01 pm
Subject: Re: {LVL1} need transformer
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Bear in mind that the voltage rating specified will be under the rated
load.

Unloaded, the output voltage will be higher than the full-load rating.
How much higher it will be can vary a lot from one wall wart to the
next.

Not sure what application would be that critical about 4 Volts. As for
using a resistor, this is only effective for a fixed load current. If
the actual current drain will change while it's in use, the resistor's
voltage drop will also change.

Speaking of which, you have not specified the power/current
requirement this transformer should provide.

Makes a difference.

73

On Mar 1, 5:37 pm, Timjusttim <cth...@gmail.com> wrote:


 
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Christopher Cprek  
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 More options Mar 2 2012, 8:00 am
From: Christopher Cprek <paxtita...@gmail.com>
Date: Fri, 2 Mar 2012 08:00:55 -0500
Local: Fri, Mar 2 2012 8:00 am
Subject: Re: {LVL1} need transformer
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I have 110 to 12.4, 24, and 40 VAC, but no 20..

Chris


 
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