thanks...

Hammond mfg will cut the 1455T2202 to length with a minimum of 25 pieces.  I was thinking of going that route but don't want 25.  The case pars found is nice as well.  I'm in for either one

I would be in for either one.

 

Me

On 10/25/2016 at 3:56 AM, Pars said:

I sent an email to Context Engineering regarding their 6008H-8.5N case (8.5" long) and whether they could cut them to 6.8" (or 6.840") for this application.

I have not followed up with them yet.

 

I asked last week about their desktop enclosure and got a quote. Although the split body seems like a better idea.

The dimensions might not be totally correct but the price should still be valid. I requested quotes for no cutouts as well as 6 holes in front and 5 holes in the rear. I asked for quantities up to 100 but there isn't much difference between 50 and 100 so I'll just go up to 50.

P/N & Description: 175DT desktop enclosure 5”W x 6.8”D x 1.720”H, 6 part enclosure, screws included, no cutout, no markings

 

Qty: 1          Price: $213.30 each set          Finish: natural aluminum (no finish)

Qty: 1          Price: $333.30 each set          Finish: black anodize

 

Qty: 5          Price: $85.90 each set           Finish: natural aluminum (no finish)

Qty: 5          Price: $117.90 each set          Finish: black anodize

 

Qty: 10         Price: $66.80 each set          Finish: natural aluminum (no finish)

Qty: 10         Price: $98.80 each set          Finish: black anodize

 

Qty: 25         Price: $54.30 each set          Finish: natural aluminum (no finish)

Qty: 25         Price: $85.50 each set          Finish: black anodize

 

Qty: 50         Price: $44.70 each set          Finish: natural aluminum (no finish)

Qty: 50         Price: $73.50 each set          Finish: black anodize

 

P/N & Description: 175DT desktop enclosure 5”W x 6.8”D x 1.720”H, 6 part enclosure, screws included, with cutouts, no markings

 

Qty: 1          Price: $261.30 each set          Finish: natural aluminum (no finish)

Qty: 1          Price: $381.30 each set          Finish: black anodize

 

Qty: 5          Price: $95.90 each set           Finish: natural aluminum (no finish)

Qty: 5          Price: $127.90 each set         Finish: black anodize

 

Qty: 10         Price: $76.80 each set          Finish: natural aluminum (no finish)

Qty: 10         Price: $108.80 each set        Finish: black anodize

 

Qty: 25         Price: $64.00 each set          Finish: natural aluminum (no finish)

Qty: 25         Price: $95.20 each set          Finish: black anodize

 

Qty: 50         Price: $53.70 each set          Finish: natural aluminum (no finish)

Qty: 50         Price: $82.50 each set          Finish: black anodize

I did a small update on the mini board to add a pad on the opposite side of the on board regulators.

Here's and updated view...

This will be included in the group buy

I'm also interested in an enclosure group buy if possible.

I have no problem running it


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What is the max power this can do? Either the mini or the regular one.

I read in the thread that it can push 2.5W into 50 ohms class-A. Can you push it further into class-AB or is this purely class-A?

updated board file

 

About SS Dynalo Mini, after adjust properly then soldering servo opamp?

 

I wouldn't solder it in, but I use good sockets. Your call however.

On aliexpress there is a vendor (breeze audio) who can do a customized chassis, but you need to order a minimum of 30 pieces.

 

 

Does anyone have a BOM for the transportable version going? I'm trying to place an order to intercept the board arrival.

On a side note I like the switching supplies only costing ~11 a pop

I thought Kerry had posted a BOM for this? Here is the one I have from Kerry's .

kerry mini ssdynalo-v1-4.xlsx

Mouser parts here - http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=497a265867

2 hours ago, RudeWolf said:

Mouser parts here - http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=497a265867

What would be the best hand technique to solder that regulator?

Had difficulty finding the schematic for the mini in the usual place, is it posted? Trying to figure out how to configure the jumpers on the regulator given the IPM-15-24, choose the right output bias resistors (in the 255 spot) for a given jumper setting, and the AOT thingy. 

No schematic for the power supply that Kerry did. Unless he has it.

 

3 minutes ago, kevin gilmore said:

No schematic for the power supply that Kerry did. Unless he has it.

 

Ok, thanks!

Here are the schematics:

 

 

I've got to look up the settings again for the positive rail. I'm running out in a bit so may need to do it later.

EDIT:  Ok so the silk screen should read 14.2V before you start bridging the jumpers.  You should bridge 3P2V, 1P6V, 0P8V, 0P2V for a 20V output.

Also, updated schematics to make them higher resolution.

Edited December 17, 20169 yr by Kerry

Thanks Kerry!

In going through the BOMs I noticed R53 listed as 160K and on the PS schematic and silkscreen on the negative sense line labeled as 1.43M.

I'll list more as I find them.

Edited December 17, 20169 yr by GrindingThud

Use the values in the BOM.

Just now, Kerry said:

Use the values in the BOM.

got it

Also R1 and R3 should go to to 424 ohms.  I also want to double check the LEDs in the bom as well.  I can look at that when I get home later.