Cheap low powered amp - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 16th October 2006, 06:16 PM   #1
diyAudio Member
 
Join Date: Nov 2005
Location: Boston
Default Cheap low powered amp

I'm sure this topic has been addressed multiple times, but in my searches I didn't really find anything that helped me out. I've done diy speakers before, but never an amp so I'm pretty clueless. I'm building some crib speakers for my baby and only need about 10 to 15 watts x 2. I can buy a t amp that'll work for 30 bucks, but if I could build one for less... that would be swell. Thanks guys.
  Reply With Quote
Old 16th October 2006, 06:50 PM   #2
MaxS is offline MaxS  France
diyAudio Member
 
Join Date: Mar 2006
Location: France
You can reduce the cost by use old amp or TV by using some transfos / capacitors. For the chips, you can use LM 1875 or TDA 2030.
__________________
Ca marche pas ! Tu ne l' as pas branché non plus ....
  Reply With Quote
Old 16th October 2006, 07:23 PM   #3
phn is offline phn  Sweden
diyAudio Member
 
phn's Avatar
 
Join Date: Oct 2004
Try this: http://www.geocities.com/rjm003.geo/...io/diy_gc.html

A 24-0-24V transformer will give you about 25W, if I'm correct.
  Reply With Quote
Old 16th October 2006, 08:16 PM   #4
diyAudio Member
 
bikehorn's Avatar
 
Join Date: Aug 2004
Location: toronto
how about a used t-amp? that'll probably be $15 or whatever
  Reply With Quote
Old 16th October 2006, 08:18 PM   #5
diyAudio Member
 
Join Date: Nov 2005
Location: Boston
You know somebody selling one? The SAF on this is pretty low so I'm trying to keep it pretty cheap. A baby needs decent sound too... those crummy one speaker jobs they put in their toys with limited music options. pfff
  Reply With Quote
Old 16th October 2006, 08:21 PM   #6
diyAudio Member
 
honinbou's Avatar
 
Join Date: Oct 2004
Class A amplifier using LM317!
You could actually hard-wire the stuff together as the design is very simple.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Scosche SPL meter: Cheap find with potential, or cheap junk? theAnonymous1 Everything Else 5 11th October 2006 03:40 AM
recommend a cheap powered sub for a buddy zuki Subwoofers 0 6th August 2004 03:36 AM
Cheap finish for my cheap subwoofer? mazeroth Subwoofers 19 26th July 2004 01:47 PM


New To Site? Need Help?

All times are GMT. The time now is 09:27 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2