Products > Test Equipment

An ugly but working HP6060B Electronic Load

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AMR Labs:

--- Quote from: amc184 on January 17, 2023, 07:50:46 am ---
Once I've received the new aluminium backed PCB panels I've ordered I'll check they work, and if so I'll post the gerbers up here for anyone to use.


--- End quote ---

Just curious if you might have received the PCB panels and how did they end up working out.

amc184:
I finally got around to adding those front panel boards added to a PCB order, and got them back last week.  This weekend I got them assembled onto the three units I had in mind, a 6060B, a 6632A and a 6644A.

All three worked well:


What they look like on their own:


I also made a blanking plate for the rear of the 6060B:


I've attached archives for each panel:

* 6060B FSP A1 GBR.zip - front panel for 6060B, should suit 6060A, 6063A and 6063B as well.
* 6060B RSP A1 GBR.zip - rear blanking panel, suits same as above.
* 6632A FSP A1 GBR.zip - front panel for 6632A, should also suit 6633A and 6634A.  Might also suit 663XB series and others as well.
* 6644A FSP A1 GBR.zip - front panel for 6644A, should suit 6641A, 6642A, 6643A and 6645A.  Might also suit 654XA series and others as well.
Each of these ZIP archives contains the following files; GOL (board outline), GTL (gerber top layer), GTO (gerber top silscreen), GTS (gerber top soldermask) and TXT (NC drill).  The GTL file is empty in each, but I included it because if it's included you do get a preview with JLC PCB.

The panel for the 6644A includes a ground and the 6632A doesn't because that's what's moulded into the front panel.  You'd have to ask HP why this is inconsistent.  The connector openings are 12mm in diameter and 19mm in pitch, except for the 6060B where they're customized to suit the original binding posts.  Note that because of the nature of the front panel moulding of the 6644A (which is made to take multiple binding post styles) two of the panel are needed for each unit.

amc184:
Also, while I was installing the new panel on the 6060B I rotated the binding posts as someone suggested to me.  The front panel has notches in all four directions, so they can be set to preference.

I used 4mm safety banana sockets on the 6632A and 6644A for a few reasons:

* They don't sick out beyond the panel.  Binding posts feel very vulnerable sticking out from the front of one of these heavy linear power supplies, though I guess the knobs on the 6644A are just as bad.
* I use a few cables with these that are terminated in safety banana plugs, so I like the compatibility.
* Safety banana sockets seem to be higher quality.  I've never really come across a non-safety 4mm banana socket that I've really liked.
I've attached the 6060B panel ZIP archives here, they seem to have dropped off my last post.

AMR Labs:
Very nice indeed. Can you please remind us where did you have these boards made? Thanks for posting the zip files.

DavidAlfa:
Any cheap PCB maker could do this nicely.
It's just the substrate (Without any copper on it) and the silkscreen.
JLCPCB, PCBWAY...

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