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Kerry Design mini GRHV\GRLV and JoaMat mini T2 Group Buy


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Look what I just found at my door step...  

Just got a few boards in.  From left to right... GRHV78xxx, GRHV79xxx and to the right is a new experimental digital alternator.  It’s stackable for balanced  

Quick update on the status of the GB - we are in the process of testing the boards before sending them to the fab house for estimates. Will provide another update as progress is made.

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I was checking my second order to Mouser (last one) and verifying everything, I discovered that all my LT1021 are 7v instead of 10v (GR78xx, GR79xx and T2) 

Should I replace them with 10V one or I can let them ? I will have to change only R2=2.29K to get 15V

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I like the 7v version for the GRLV supplies, but it doesn’t matter.  From a noise perspective, I think they’re slightly better. 
 

If you’re talking about the T2 power supplies, I believe they need to be 10V.  You could potentially recalculate all of the set resistors. 

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On 5/4/2021 at 7:41 PM, waltzingbear said:

interested in getting a set of the Kerry psu and modules. either preassembled or bare board would be fine.

2X GRHV

1XGR78xx

1XGR79xx

 

Cheers and TIA

Alan

PM me if you are still looking for boards.

Also, you need a base board to assemble a PSU unless you have or plan to fabricate your own. 

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On 3/25/2019 at 2:08 AM, Kerry said:

Here's some pics of the power supply inside a Canon build...

4E473E3B-B7EE-406D-896E-8B4117917098.thumb.jpeg.d0dce6d0d900b007c061346c972239f0.jpegE7BD07A9-03E8-4384-A211-C6F7AC6936C2.thumb.jpeg.d1d7d9801e19a8a912824a4239c9af4b.jpeg7E5654BE-4BF6-46CA-86BB-136E366C8572.thumb.jpeg.226a9195492a92ef526fcb2b9f641340.jpeg

Hi @Kerry, nice build as always. Mind sharing the p/n for the white clips holding the pot cables to the PCB spacers? Thanks a lot! 

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They're just Nylon R Type Cable Clamp Fasteners.  I got my last batch from Amazon.  I tend to use 1/8, 3/16 & 1/4" sizes.

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