Diy amplifier kits, par

[Abhinavas]

hello everyone, i am newcomer ,

planing to build integrated amp .some parts already @ my hand like 22-0-22 5A toroidal transformer, cabinet etc...
Anyone willing to sale these items or completed one
mainly my needs are amplifier kits with 50W to 150W., B/T ,power supply,






sorry for my poor language :sad:

 

[manniraj]

Did you check this site DIY Amplifier for the DIY parts?

 

[saheb11123]

If you need chipamp based amp parts I can give you that. Pm me if interested

 

[gp_freak]

I am also planning for an AMP, but I don't know even the basics of electronics currently.

Just came across these in Ebay.

500W RMS Stereo Audio Amplifier KIT Board DIY Audio With Bass AND Treble | eBay

550W RMS Mono Audio Amplifier KIT Original 12 Mosfet Upto 580 Watts DJ Board | eBay

500W RMS Stereo Audio Amplifier KIT DIY Audio Real Watts Loud Home Board AMP | eBay

500W RMS Stereo Audio Amplifier KIT Board Transformer Cabinet Assembling | eBay

 

[GeorgeO]

The chip amp is a good starting point, though I doubt if a 5A toroidal will give you any worthwhile power.

 

[saheb11123]

I currently employ a gainclone based on lm3886. design is not reference, I have posted a thread here also, that employs a 5a 20-0-20 tranny, the power out is very good.
It is also within chip limts.

 

[GeorgeO]

Yes, I seem to have got that wrong. 5A at 220V equals 1100VA according to an online calculator, which is plenty.

 

[omishra]

Yes, I seem to have got that wrong. 5A at 220V equals 1100VA according to an online calculator, which is plenty.

Sir, I guess that 22-0-22 5A means 44V,5A with center tapped. so max 220VA.

 

[linuxguru]

Sir, I guess that 22-0-22 5A means 44V,5A with center tapped. so max 220VA.

Yup, that's fine for a 2-channel LM3886 gainclone or similar, which is Class-AB and rated at 68W per channel, max. With a 22-0-22 trafo (+/- 30V rails), the LM3886 may be capable of ~40W maximum per channel, so 220 VA is ample.

 

[GeorgeO]

>Sir, I guess that 22-0-22 5A means 44V,5A with center tapped. so max 220VA.

Thanks, I stand corrected again. I've used a 160VA toroidal from Miracle for my LM 3875, and it works very well, so yes 1100VA looked overkill!!

 

[santhoshdts]

Dude GP_freak do not buy those DIY kits from ebay. its over priced. which place are you from? In Bangalore you can visit SP road, Pooja Electronics for good amp boards or
if you are in Chennai you can visit Ritchie street.

 

[sarith]

hello everyone, i am newcomer ,

planing to build integrated amp .some parts already @ my hand like 22-0-22 5A toroidal transformer, cabinet etc...
Anyone willing to sale these items or completed one
mainly my needs are amplifier kits with 50W to 150W., B/T ,power supply,

sorry for my poor language :sad:

Hello Abhinav,
I have few kits with me which I bought as part of my hobby/experimenting. Also got unused kits. PM me for details/pics

 

[gp_freak]

Dude GP_freak do not buy those DIY kits from ebay. its over priced. which place are you from? In Bangalore you can visit SP road, Pooja Electronics for good amp boards or
if you are in Chennai you can visit Ritchie street.

I am from Chennai. Its actually semi assembled kits. I felt those kits to be cheaper or on par with the ones listed in diyaudiocart I guess I may be wrong too.

 

[Abhinavas]

got MiniRef Amp kit.thread closed

 

[sarith]

got MiniRef Amp kit.thread closed

Good to know. Responded to the PM you sent and no response from you yet. FMs in here are to help and you must show the minimum decency to respond to replies sent to your own queries or just don't PM and waste our valuable time.

 

[Abhinavas]

@ sarith
very sorry about my late response..

 

[GeorgeO]

I picked up my enclosure from Pooja Electronics and found a very good board and remote which allows me to control volume, switch my amp on and off and tune 10 FM stations all for only Rs 100! The enclosure is Rs only 500.

 

[linuxguru]

I picked up my enclosure from Pooja Electronics ... enclosure is Rs only 500.

Is this the Dexa cabinet? It has a stamped and shiny galvanized lower U section, along with a black powder-coated upper U section/lid. Everything is fine with that cabinet (as long as you're willing to drill additional holes for the trafo, PCBs, etc.) *except* the front bezel. That needs a more aesthetic option - either brushed aluminium or solid wood is feasible.

 

[saheb11123]

I picked up my enclosure from Pooja Electronics and found a very good board and remote which allows me to control volume, switch my amp on and off and tune 10 FM stations all for only Rs 100! The enclosure is Rs only 500.

Can you post pics of the same board?

 

[sarith]

I have been myself looking for DIY amp kits and particularly based on LM3886. But I came across different versions of it. I am attaching pics and titles of these. Could the "Gurus" comment / suggest which one is best? I do understand that substitution of caps with audio grade ones may be required.

I have been checking out 2 and 5 for some time now. I rate No.2 primarily and No.5 secondly. I have no experience with these kits but I would like to try them just based on my intuition and the product's appearance.