[450] Today's project

[David McKenzie]

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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