It changes in most cases reduces the level of supply to a value suitable for driving the load circuit. It produces a DC supply from the mains or line supply AC sine wave. It prevents any AC from appearing at the supply output.
If you remember from our last episode when we last left our cabinet, it was looking something like this. I spent a while trying to decide on the color for the cabinet.
I was thinking of doing it as a hot rod red, or a nice black, in the end black won out. Fortunately a friend told me about a 2 part paint product. The spray pattern is pretty nice as well, much better than a normal rattle can.
This is really important to adhere to. Get a good mask if you use this stuff on a project. I pulled all of the panels off of the case and scrubbed them down with acetone which got most of the grime off of them and de-glossed them a bit, and then I used a green 3M sanding sponge pad to finish up deglossing the panel and prepping it for the paint.
I did not use any primer for this. Click to enlarge these photos and see how the Eastwood paint lays down!
SprayMax is also available in Europe I believe. With that complete, I needed to get the dials, buttons and knobs in the front panel.
You can see the paint got slightly burnt around the right panel meter hole! I also added in some really nice Vishay-Spectrol Turn potentiometer dials. The dials will be used to control the idle voltage, PWM drive frequency and the current limiting, from left to right.
Overall, aside from a couple minor things, the front control panel looks pretty cool. I also machined the back plate and added the connectors.
The argon laser head will connect to the terminal strips, and the power lines and auxillary lines will come from inside the case, through that hole and onto the terminal strips as well. The big power connector on the left is the LR power connector.We offer a large selection of Benchtop Power Supplies also called Lab or Laboratory Supplies.
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