LM3886 Mono Amplifier

[suds07]

Here is my version of DIY LM3886 Amplifier
schematic and PCB layout attached, I made prototype, there is no audiable distortion with input floating, good response with bass, guitar and high frequency music, schematic is smililar to Gainclone LM3886 amp.

Thanks
Suds

 

[saheb11123]

Are you making a pcb?

 

[suds07]

Are you making a pcb?

I have made prototype for checking, it working great, Yes I have the PCB's

 

[tcpip]

I have made prototype for checking, it working great, Yes I have the PCB's

Neat job.

Where did you get the PCBs made?

 

[suds07]

I get it done from a manufacturer in chickpet "Vishal International"
they are expensive, so I combine multuple types of PCB for prototyping.

 

[suds07]

Are you making a pcb?

I get them made from Manufacturer, I only Clone / Re-design them.

 

[tcpip]

Re: LM3886 PCB

I get them made from Manufacturer, I only Clone / Re-design them.

Does he have a website? Will he take an order remotely, if I email him the Eagle CAD files or the Gerber files, say?

 

[suds07]

Does he have a website? Will he take an order remotely, if I email him the Eagle CAD files or the Gerber files, say?

Remotely does not work with him, he delays a lot, need to follow regularly, he takes some amount in advance, its better to find some manufacturer at your location.

 

[tcpip]

Remotely does not work with him, he delays a lot, need to follow regularly, he takes some amount in advance, its better to find some manufacturer at your location.

I guess my safest bet then will be PCBPower. They take orders over the Web, and operate in India. Never used them, though.

 

[pranavkumar]

I guess my safest bet then will be PCBPower. They take orders over the Web, and operate in India. Never used them, though.

i have had a very good experience with PCBpower. Very neat production.
i guess they are a little expensive and would be VFM if there is a large quantity.

hope this helps

 

[suds07]

i have had a very good experience with PCBpower. Very neat production.
i guess they are a little expensive and would be VFM if there is a large quantity.

hope this helps

I have quote from them, yes they are expensive..

 

[diesel engine]

I have quote from them, yes they are expensive..

Quite natural! that is the economics of mass production. But I dont think you need external help for a PCB of this size and complexity. simple laser print-hot transfer-FeCl2-varnish coating method is enough for this. for double sided just drill one side before transfering the other side.

 

[Petter]

Hi suds07, i like you're design, is it possible to buy 2x pcb from you?

Regards
Petter (From Norway)

 

[pranavkumar]

Is this the same PCB ? Looks like .
http://www.technofreek.com/diy-electronics/audio-electronics/LM3886-Amplifier-PCB]LM3886 Amplifier PCB

 

[suds07]

Hi suds07, i like you're design, is it possible to buy 2x pcb from you?

Regards
Petter (From Norway)

Shipping is too expensive.. min $30USD.

 

[suds07]

Is this the same PCB ? Looks like .
LM3886]Audio Electronics Amplifier PCB

yes its same one.
cannot be bought from the site, payment gateway not set.
try ebay.in

 

[novice-akki]

Hi Sudhir,

It's a small world !

I bought a kit from your ebay store - didnt know you are on HFV !!

I must admit - super prompt responses and detailed replies for my newbie questions.

All the best !

Cheers