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Lovoltech LU1014 Power Jfet Group Buy

A couple notes for today-

1. Q- Is possible to not add our email address to the spreadsheet? A- Yes, send me a PM with your email and write "PM sent" in the email address on the spreadsheet. I'll try to keep it all straight. Please still add your country.

2. Q- I want to buy PCBs and I don't care or need the " 3 pin headers". Can I just order PCBs? A- Yes, I've added a column to the spreadsheet, "PCB pairs, no pins". Add the amount of PCB pairs you would like without the 3 pin headers.

3. Q- How many PCB kits (PCBs, 3 pin headers, resistors) can I order? A- Right now, it's one pair. Just like the LU1014D, we want to make sure everyone who wants a set, gets a set. If it changes and we can make more kits available, I'll let you know.

3. Q- Will I be charged for the 3 pin headers if I just order PCBs? A- No, you will only pay for what is delivered.

4. Q- What are the costs? A- Still figuring it out. With the complication of the pin shortage, I now need to figure out how many PCBs to order, some to be used with the pins and some without. Regardless, I will post the costs before an invoice is sent.
 
Alu PCB

Finally getting aluminum PCB bolted to a heatsink. Looking forward to exercising this setup. Thanks to XRK and JPS64.
 

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Nice to seen it almost up and running. You are only using one bolt I see. The two side ones will allow much better even pressure to give better thermal coupling if you plan on running hot (20A etc).

Q: Why did I only use one screw? A: There was already a small enough hole in this heatsink. Too lazy to make and tap a second hole. LOL

Surprisingly enough, this PCB snugs down nicely with just this one screw. When I am serious enough to operate one of these long term, I will use two of the mounting holes.

You and JPS64 did great job designing these aluminum PCBs. I am impressed with how these help use the LU/LD parts.
 
Founder of XSA-Labs
Joined 2012
Paid Member
Q: Why did I only use one screw? A: There was already a small enough hole in this heatsink. Too lazy to make and tap a second hole. LOL

Surprisingly enough, this PCB snugs down nicely with just this one screw. When I am serious enough to operate one of these long term, I will use two of the mounting holes.

You and JPS64 did great job designing these aluminum PCBs. I am impressed with how these help use the LU/LD parts.

Thanks - credit all goes to JPS64. It was his idea.

It really does make this very nice part become much more useful for DIY projects.
 
GB Update-

1. Most of you have added email addresses or PM'd me your email address for the invoice. Those of you who have not, please do so. I'll post costs for the items this week.

2. For the (PCB pairs with pins or Full Kit) we will have to limit the amount available to 2 kits/pairs per participant. For clarification- 2 kits would give you, 4 pcbs, 4 header pins and 4 resistors. We just can't get enough pins quickly to fill all the orders. Please adjust your quantities, if they are over 2.

3. No limits on just PCBs and resistors. We should have enough.

Pins are expected towards the end of the month. JFets are finished and matched. Resistors have shipped. PCBs are in the manufacturing process.

Once I receive all the components and check them, I'll invoice and ship when it is paid.
 
How should we indicate that we’d like the resistors with any additional boards beyond the 2 pair limit for kits?

I have enough resistors to match all the PCBs. For example, if your order 5 pairs of PCBs, you'll get 5 pairs of resistors with the PCBs. We're just short on the header pins. I could not order enough of them to match the PCBs.

Of course, some folks might want to use wires or other connectors rather than the header pins.