Does anyone have the CAD models of the V5 EF3-5 boards. If there exists the models for the supporting boards in the V5 set I'll take those as well.
I am one who likes to CAD everything up before I start to order parts.
I am one who likes to CAD everything up before I start to order parts.
I would like to get a chassis on order but I have yet to see the BOM to know how to select transistors and their associated packaging. Any guidance on which transistors to choose and their package? Also what is necessary to order from Modushop a chassis for a EF3-4?
Give me a few days and I'll create some dxf and step files for you of all the v5 boards.They will only show the board outlines and mounting hole positions.
I'm the same,I like to lay everything out in CAD before I start.
I'll update the first post of this thread with that information a little later today. So please check again later.
For now here is the modushop heatsink link.
Fantastic. All I really need is the DXF and thickness. I can finish the rest off in CAD. Once I finish the design I'll just upload it for anyone for anyone to use/modify.
I think the T ground board is missing. Here are the step files if you'd like to pin those up there as well.
Thank you @stuartmp! Is it best to order direct through modushop's website or DIY Audio Store (https://diyaudiostore.com/products/2025-deluxe-chassis-5u?variant=50337364508951). )? Or do we need to order the chassis and the heatsink (from the link you provided) together from modushop's website?
Hi!
You just need to add the chassis you need plus the item Stuart linked in his previous cart to your cart. Please make sure you choose the correct output you need 🙂
Gianluca
Please refer to the first post.
@jjs has kindly agreed to make his information on the subject public, and @Mainframe has created a single sheet with all the information for all forum members to access. You can find the details in the attached file: "Wolverine BOM Sheet 2 - Semis & PSU.xlsx".
Let's also take a moment to thank these guys for their dedication and commitment to this project—they’ve put in countless hours to compile and organize this information to support us all.
Thank you for providing "Wolverine BOM Sheet 2 - Semis & PSU.xlsx"!
Do I understand it correctly that Modushop won't pre-drill and tap the heat sinks for MT-200 packaged transistors? If so, why is that?
How many 2SA1381E / 2SC3503E Transistors are required for a stereo Wolverine design?
Do I understand it correctly that Modushop won't pre-drill and tap the heat sinks for MT-200 packaged transistors? If so, why is that?
How many 2SA1381E / 2SC3503E Transistors are required for a stereo Wolverine design?
They have the MT-200 heatsinks available for order for the EF3-4
4 Pairs minimum per stereo amplifier.
You can alway refer to the latest order sheet.
Test Set-up EF3-4 V. 4.0
Guys, I replaced the 14 pin headers and have them correctly installed. J-103 jumper is installed, the input is shorted, R25 and R11 are set to midpoint and R109's resistance is maxed out. A 9.1K resistor is in parallel with R17. The resistance tests at 16.3 of the Build Guide Revision 41 have been passed. I have a meter in place to measure output voltage between TP107 and TP108. I have a second meter measuring DC voltage between TP1 and TP2.
I'm using 0.2amp fast blow fuses. I'll try to bring up the voltage and current slowly using my bench power supply.
Pictures below. Let me know if you see anything crazy......
John
Guys, I replaced the 14 pin headers and have them correctly installed. J-103 jumper is installed, the input is shorted, R25 and R11 are set to midpoint and R109's resistance is maxed out. A 9.1K resistor is in parallel with R17. The resistance tests at 16.3 of the Build Guide Revision 41 have been passed. I have a meter in place to measure output voltage between TP107 and TP108. I have a second meter measuring DC voltage between TP1 and TP2.
I'm using 0.2amp fast blow fuses. I'll try to bring up the voltage and current slowly using my bench power supply.
Pictures below. Let me know if you see anything crazy......
John
Attachments
Hi John,
Your power supply configuration needs to be set up for split rails to test the amplifier.
Check this before you power it up please
- Dan