[450] Today's project

[Bob]

Yes, this is the original quarantined message.  I saw that it was
quarantined and resent it in a way it woukd accept.  This is just an echo,
feel free to ignore!

On Wed, Mar 20, 2013 at 2:56 PM, David McKenzie <k1fsy at vhfwiki.com> wrote:

> dont think so, this email was pending for whatever reason so i pushed it
> through. i think it was just bob's reply that is new
>
> On Wed, Mar 20, 2013 at 2:54 PM, Michael Aurio <oneluckystiff at hotmail.com>wrote:
>
>>  is there something different different from the first time you sent it??
>>
>>  ------------------------------
>> Date: Sun, 10 Mar 2013 19:00:59 -0400
>> From: n1ujs at toast.net
>> To: n1ujs at toast.net
>> Subject: [450] Today's project
>>
>>
>>        Having acquired the 100 amp switching supply, next step is to
>> make it useable in the shack.  Metering, power connections, etc. aren't
>> part of the package when you get one of these things.  Having a "temporary
>> shack", I needed a way to add these things without building it all into the
>> shelf for now.  Further, I needed to do it in a way that would allow me to
>> use it at the full 100 amps if necessary, so it had to be heavy duty.  Here
>> is how I did it.
>>
>> [image: Inline image 1]
>> Two meters nestled nicely into the front of an old speaker cabinet.
>>
>> [image: Inline image 2]
>> The cutting didn't go to badly this time!
>>
>> [image: Inline image 3]
>> 5/16 binding posts.  The two on top are positive, the two on the bottom
>> are negative.  I still have to mark them, and make a cover for the back for
>> after all lines are connected.
>>
>> [image: Inline image 4]
>> Here are the binding posts from the inside, keep in mind all connections
>> need to support the 100 amp concept.
>>
>> [image: Inline image 5]
>> Overall, looks fairly professional for junk parts (rubber feet
>> even!)....only the meters were purchased, $12.00 each online.
>>
>> [image: Inline image 6]
>> You can see here the #4 cable in place to plug into the output ports of
>> the supply which will be mounted to the four pads on top.  They route into
>> the box via teflon bushings.
>>
>> [image: Inline image 7]
>> Another view of the top.  The extra bushing is to route the case ground
>> wire.
>>
>> [image: Inline image 8]
>> An overview of the inside.  Note: everything giant and bolted for power
>> connections...those lugs to either side of the shunt (center) were formerly
>> used to connect the 1/0# ground wire to my towers at the old shack.
>>
>> [image: Inline image 9]
>> More overview from back...
>>
>> [image: Inline image 10]
>> ....and from the front.....
>>
>> [image: Inline image 11]
>> Here is the shunt set up....the main reason this needed a box to begin
>> with.  This must be well isolated and firmly mounted as the entire thing is
>> "hot", both polarity AND temperature.  Without it, there would be no
>> current measurement.
>>
>> [image: Inline image 12]
>> A close up of the shunt and it's mounting.
>>
>> So there it is.  Still some finishing touches to do, maybe meter light,
>> maybe a few switches, but overall ready to mount the Powermax 100 amp
>> supply to and put into service.  Hope you enjoyed the tour!
>>
>> Bob N1UJS
>>
>>
>>
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>>
>
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