Newbie, wanting to build Amp

PaulHilgeman · 18th December 2002, 06:59 PM

If I wanted to build my first amplifier, what would be a good place to start. I have good knowledge of electronics and transistors. Would it be best to start by using one of the NS LM3875 chips? It seems that all I would really need is a preamp, power supply and heatsinks to get those working.

Or would a simple transistor amp be better. I currently have an Outlaw 1050, which is 65 W per chanel, and sounds pretty darn good, it drives a pair if DIY speakers, which will have active XO's soon.

Here are the speakers: GR.V.P

Let me know what you guys think is best. The good thing about the IC amplifiers is that I can get them for free because I am a student and all.

Thanks,
Paul

trwh · 18th December 2002, 09:26 PM

Hi Paul

IC based power amps make great first projects. Here is an amp based around the LM3876 chip:

http://sound.westhost.com/project19.htm

See ya,
Tim.

immeraufdemhund · 8th January 2003, 02:22 AM

well that Amp is nice. Is there one that uses less volts that would just as easy to make. Say 12v.... ok by now you should know what i'm thinking of... I'm new to this place too and i was reading some of the stuff... It is really deep. But it will help me while working at radio shack.

AJ Bertelson · 8th January 2003, 02:24 AM

not sure if this is gonna help at all

How hard is it to build a P3a amp?

18th December 2002, 06:59 PM	#1
PaulHilgeman Account Disabled Join Date: Dec 2002	Newbie, wanting to build Amp If I wanted to build my first amplifier, what would be a good place to start. I have good knowledge of electronics and transistors. Would it be best to start by using one of the NS LM3875 chips? It seems that all I would really need is a preamp, power supply and heatsinks to get those working. Or would a simple transistor amp be better. I currently have an Outlaw 1050, which is 65 W per chanel, and sounds pretty darn good, it drives a pair if DIY speakers, which will have active XO's soon. Here are the speakers: GR.V.P Let me know what you guys think is best. The good thing about the IC amplifiers is that I can get them for free because I am a student and all. Thanks, Paul

8th January 2003, 02:22 AM	#3
immeraufdemhund diyAudio Member Join Date: Jan 2003 Location: Knoxville, Tennessee	well that Amp is nice. Is there one that uses less volts that would just as easy to make. Say 12v.... ok by now you should know what i'm thinking of... I'm new to this place too and i was reading some of the stuff... It is really deep. But it will help me while working at radio shack. __________________ Was kostet Europe, ich kaufe es!

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18th December 2002, 09:26 PM	#2
trwh diyAudio Member Join Date: Apr 2002 Location: UK	Hi Paul IC based power amps make great first projects. Here is an amp based around the LM3876 chip: http://sound.westhost.com/project19.htm See ya, Tim.

8th January 2003, 02:24 AM	#4
AJ Bertelson diyAudio Member Join Date: Jan 2003 Location: Maple Grove, MN	not sure if this is gonna help at all How hard is it to build a P3a amp?