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Interest for Potential GB for Pioneer Super Linear Circuit
Interest for Potential GB for Pioneer Super Linear Circuit
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Old 9th November 2017, 01:52 PM   #131
EUVL is offline EUVL  Europe
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> Those holes look like vias.

Some are vias, some have special functions, as you will know later.
Not in the wrong spot but deliberately placed.
It is easy to fill those holes with solder while you solder the SMD components. Have use them many times before.
Actually simplifies layout, though not used by others or by industrial software.

> how about this ?

Spot on. Plus some others on the bottom side.
So have to make new even though one can still use all the boards with a bit of resist scrapping.


Patrick
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Old 10th November 2017, 12:39 PM   #132
BuckarooBanzai is offline BuckarooBanzai
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I'd be happy to scrape off the solder resist if it means saving you guys some money
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Old 10th November 2017, 03:16 PM   #133
EUVL is offline EUVL  Europe
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Thanks for the offer.
But our reputation is worth a lot more than the extra cost.




Patrick
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Old 10th November 2017, 07:56 PM   #134
Algar_emi is offline Algar_emi  Canada
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Interest for Potential GB for Pioneer Super Linear Circuit
Hi. Can we get the SHPP ver2.0 BOM that will fit the PCB on this GB? I'm ordering the parts for amp PCB, but I cannot proceed until I have the protection pcb as well. Thanks
SB
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Old 11th November 2017, 03:29 AM   #135
EUVL is offline EUVL  Europe
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It is our usual practice that you will be receive all updated documentation once you email to confirm that you received the goods.
These updated versions will not be published in the public domain.


In this case, it includes :

Updated description and BoM of the SL circuit itself including the CCS bias
Description & BoM of the Regulators
Description & BoM of the Cross Feed Circuit
Description & BoM of the SHPP

For the amp itself, using the BoM in the public document will get you 90% of the parts.
You will need in addition (per channel) :

matched pair of 2SC3324BL
matched pair of 2SA1312BL
1x 2SK209GR (Idss ~ 4mA)
4x Susumu 0805 1k
1x Susumu 0805 100R
1x Susumu 0603 100R

The rest you can order afterwards.
Mouser & DK delivery will only take a few days, quicker than you will finish testing the amp.


Sorry for the inconvenience,
Patrick
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Old 11th November 2017, 05:55 AM   #136
EUVL is offline EUVL  Europe
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One re-ordered boards arrived.
Looks good; need to order 5 more.
Will take ~ 10 days.


Patrick

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Attached Images
File Type: jpg SLHPAV2 R2.jpg (102.6 KB, 261 views)
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Old 20th November 2017, 04:07 AM   #137
EUVL is offline EUVL  Europe
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ALL remaining PCBs arrived and checked OK.
Should be shipping this week, as promised.
You will get email notification of tracking number.


Patrick
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Old 20th November 2017, 11:27 AM   #138
EUVL is offline EUVL  Europe
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Here info upfront as to how the CCS bias daughter board should be assembled.

There are 5 connections in total :
C6+, C7- extended legs (min 5mm below main board)
Front Gnd wire (0.8mm silver plated copper)
R9a, R10a shorting wire connected to CCS board (0.6mm silver plated copper)

If in doubt please ask first.


Patrick

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Attached Images
File Type: jpg 171120 SL CCS 1.JPG (191.0 KB, 195 views)
File Type: jpg 171120 SL CCS 2.JPG (333.7 KB, 191 views)
File Type: jpg 171120 SL CCS 3.JPG (203.6 KB, 143 views)
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Old 20th November 2017, 11:52 AM   #139
Stixx is offline Stixx  Germany
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Really neat. You should have put a scale next to the boards to
illustrate the actual dimensions.

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Old 20th November 2017, 12:06 PM   #140
EUVL is offline EUVL  Europe
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Main board is 30 x 40mm.


Patrick
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