Thanks, BRN. It’s not always neat but I recently went through a thorough lab re-org with some new shelves because I was using Mouser boxes on the floor and a Sharpie to organize my projects. I ran out of floor space. But here is the new system if you are interested. I can technically hold the BOM and parts for 144 (small to medium) projects on three shelves. Larger ones take up 3-4x more room.
though, I like more when Amperes are called current, or Iq
bias is, well, voltage ........ commanding Iq or whatever
we know, but confusing for Greenhorns
My mistake - I meant to say bias current. 😛
With this new mounting PCB, no reason to stay at 1.5A Iq. 3A, 5A should be no problem. I will do some curve tracing at the higher currents to see when the device leaves the triode region.
I never imagined flowing 5A through the LU1014D before this, but I am now also a believer that we can start pushing this little guy and treat it more like a TO-247 sized part.
I never imagined flowing 5A through the LU1014D before this, but I am now also a believer that we can start pushing this little guy and treat it more like a TO-247 sized part.
Lots of possibilities there with creative cascode circuits.
xkr971,
That is one neat workbench. You even have a label maker. I use ziplocked bags and Sharpie to organize my parts and my tools are all over the place.
No kidding! I was about to say that. Amazing.😀
I never imagined flowing 5A through the LU1014D before this, but I am now also a believer that we can start pushing this little guy and treat it more like a TO-247 sized part.
I put down my name on that LU1014 adapter PCB but I keep forgetting which thread it is. Are you going to PM people when its go time for purchase?
I have not yet made any measurements on these LU1014D JFETs, but the look real.
I ordered these: 50PC LU1014D LU1014 N- Mosfet Transistor NEW | eBay
Hi Lynn,
Have you tested them? waiting to see if they are genuine before purchasing.
Here's a little treat for you, the original F3 selection documentation.
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Thank you, I think I will bite the bullet now that I have some quality data to compare to

I have not yet made any measurements on these LU1014D JFETs, but the look real.
I ordered these: 50PC LU1014D LU1014 N- Mosfet Transistor NEW | eBay
Measure them carefully. This seller is on my blacklist after he sold me NPN transistors marked as 2SK389 around 9 years ago. Of course he blamed his supplier but I will never buy anything from him…
Measure them carefully. This seller is on my blacklist after he sold me NPN transistors marked as 2SK389 around 9 years ago. Of course he blamed his supplier but I will never buy anything from him…
The sellers are just being a seller. They have no experience/skills/equipment to distinguish between a fake and a genuine semiconductor.
I run curves on every device and I measure against the datasheet for transconductance, Vthreshold and leakage current. If the parts are fake I get a refund. I mark that as a draw. If the parts are genuine, I mark it as a win.
The sellers who have genuine LU10XX parts are going to probably also have some fake X, Y and Z parts. If your standard is to never buy from an eBay seller who ships you fake parts, you may miss the chance to stock up on genuine LU parts. Your choice.
Nice looking curves. I will be following XRK's migration to the LD1014D surface mount part and the associated aluminum adapter that creates a TO247 footprint. This is a fun part to experiment with. Being able to buy a stash is part of the attraction.
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