MOSFETs are ordered. It's going to be a big matching festival. And a big MOSFET sample population makes for great matches.
Out of interest Randy, what Vgs matching percentage are you aiming for?
I bought a heap of these years ago, and have matched sets with better than 0.1% tolerance - should be good enough.👍
I bought a heap of these years ago, and have matched sets with better than 0.1% tolerance - should be good enough.👍
Gary,
According to the classic article, shoot for within 0.1V Vgs.
https://www.passdiy.com/project/articles/matching-devices
When I'm doing larger batches I get far closer. Here are a few sticks from my last brick of 500.
I have another 700 that will come in for this GB.
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That is what I see as well, when you buy a large qty from the same batch. Same Vgs quads down to 3 decimal places - perfect.
By the way, what color pcb,s have you ordered?
By the way, what color pcb,s have you ordered?
Purple with white silkscreen and ENIG (gold). These will look very regal. Royal Aleph Classic - Crown Royal Reference Edition boards?
Very swish Randy, you are sounding just like a salesman there with that description. I might have to follow suit.
Update - All GB participants should now have a message in their inbox asking for shipping details, confirmation of qty's, etc.
Thank you to everyone who has responded so far - the GB is picking up momentum!
Thank you to everyone who has responded so far - the GB is picking up momentum!
Monday Update - PCB's are nearly done at the fab - all are showing 90+% complete status. I think they will ship mid-week. Next they will have some time in the air, clearing customs, and then coming to my door. I expect they'll be in my hands sometime next week.
700 IRFP240 arrived this morning. Matching them will be a long session...
We are on good pace for shipping mid-late January.
I want to thank everyone who has confirmed their order details and sent a paypal! Vielen Dank! Grazie! Tak! Obrigada!
There are a handful of people with messages in the inbox with a request to confirm order quantities.
Please take a moment to send me a message with your shipping details, email address, and confirmation of your order details.
700 IRFP240 arrived this morning. Matching them will be a long session...
We are on good pace for shipping mid-late January.
I want to thank everyone who has confirmed their order details and sent a paypal! Vielen Dank! Grazie! Tak! Obrigada!
There are a handful of people with messages in the inbox with a request to confirm order quantities.
Please take a moment to send me a message with your shipping details, email address, and confirmation of your order details.
Wow. Your efficiency and speed is amazing. Again, thanks for this and the pictures!
Best,
Anand.
Best,
Anand.
Well, always late to the party! I certainly hope since the GB PDF referred to this as Group Buy #1 there will be enough interest for GB #2. Won't miss it the second time around for sure. Just jumping into the FW DIY world, parts/board for ACA mini are ordered for warm up project but ultimate plan to build out 2 chassis to switch out various FW/PL output boards, stereo power supplies initially, then dual mono. Clearly the Aleph 30 needs to be part of that rotation. Also love the setup of both versions of power supply boards, will order plenty if another GB happens.
I know all the veterans already know this, but this place is incredible. The ingenuity and creativeness is truly amazing.
I know all the veterans already know this, but this place is incredible. The ingenuity and creativeness is truly amazing.
Boards are in! I tested an expansion board on my test Aleph 60 amp, and it’s working as expected. All the mosfets are matched. Shipments will start going out this week!
A handful of folks still need to send a message to me to confirm qty’s, shipping details, and PayPal details. Please send me a message and/or reply back to the message in your inbox.
A handful of folks still need to send a message to me to confirm qty’s, shipping details, and PayPal details. Please send me a message and/or reply back to the message in your inbox.
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I just received my shipment notification, this project runs with the speed of light, I'm really excited.
Many thanks, Randy.
Many thanks, Randy.
Wow that was fast, great job! Guess I better get that bulk capacitor order in. And BTW, my daughter is going to love the purple boards.
Got a shipment notification as well, purple boards look awesome. Need to start gathering parts and large chunks of aluminum. Thanks Randy!!
These will be heading to the post office later today. Lots of Aleph kits and one LP sold on discogs while I was packing shipments. It's exciting seeing the mix of destinations for these! Which will arrive first? Which will be singing first?
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