BPA300 Round 2

[Lo_Tse]

Originally Posted by marlowson

Ladies and Gentlemen

Let me put all the informations in one and a right place (group buys).

Basing on alexw88's (shine7.com) experience, I've created my own project of PA150 (3xLM3886). It has been modified a bit, the size has been reduced, and some other tweaks have been made. I'd like to share the project with you (below). PDF file with switchable layers, try it! I'm gonna order the PCB soon, if anyone wants to grab a couple of PA150 PCB, let me know. Of course, tweaks still can be done before the order.

PCB layout:
http://airproject.drl.pl/PA150v18.pdf

Power supply up to +35/-35 VDC. LM3886 datasheet.
Details: PA150 - 3x LM3886 PCB assembly guide
PA150 - 3x LM3886 PCB assembly guide

I has been well tested by alex88. Testing and measurement:
DIY BPA300 6x LM3886 300W audio Amplifier

It is still the same project, except the capacitors which were moved from the bottom to the top, C10 (10u) replaced with wima (better solution), and some downsizing.

Anyone who is interested, just give me your e-mail address and I will send you some details.

Of course don't hesitate to ask questions

Hi, Marlowson

I am interested in the possible PCB deals on the BPA150 (originally by alex88). Does this board use smd or thru hole components? Also, what would be the estimated price per PCB? I am thinking of using a transformer to separate the + and - signals instead of the DR134 (I think) in order to bridge the two boards. Thanks!

Regards,

Lo_tse

[marlowson]

In the field of components - no changes. Both smd and thru hole as in former alex88's project.
Price 8 euro apiece if you're buying 4 pieces.
9 euro if buying 2 pieces.
+ delivery man

[Lo_Tse]

Originally Posted by marlowson

In the field of components - no changes. Both smd and thru hole as in former alex88's project.
Price 8 euro apiece if you're buying 4 pieces.
9 euro if buying 2 pieces.
+ delivery man

Marlowson,

Thanks for the info! Hmm, I recall that there were quite a few smd components on the board. I am not that proficient with soldering smd - my right eye sight is not great. Anyway, a little off-topic, is there a BOM for the BPA150 archived somewhere. I would like to check to see how many smd's that I have to tackle with.

Thanks!

Reagards,

[tryonziess]

Go to the shine7.com website where alexw88 has almost all of the original information available for the bpa300 build. He originally set out to clone the Jeff Rowland amp and did a fabulous job.

Tad

[Lo_Tse]

Originally Posted by tryonziess

Go to the shine7.com website where alexw88 has almost all of the original information available for the bpa300 build. He originally set out to clone the Jeff Rowland amp and did a fabulous job.

Tad

Thanks!

Regards,

[Fcrawley]

Anyone in America got pa-150 circuit boards for sale?

[marlowson]

I've got some PA150 pcbs left from the last group buy. Anyone who's interested pm me.

[mrsavage]

If you have 6 PA150 boards then I want them. Please let me know
what I owe you and how much. Take care.

[mrsavage]

I mean 6 BPA300 boards but if you have the 150 boards as well I will
take 6 of these as well. Take care.

[bcmbob]

If I'm not being nosy - what are you making, could be interesting. Do I hear HT system?