View previous topic :: View next topic |
Author |
Message |
Alexander125 HG Master

Joined: 13 Jan 2009 Posts: 105 Location: Galati, Romania
|
|
Back to top |
|
 |
|
 |
JingleJoe HG Supreme

Joined: 01 Apr 2009 Posts: 52 Location: England
|
Posted: Sat May 16, 2009 7:20 pm Post subject: |
|
|
It kinda looks like you made it from bits of an existing circuit? Or from a kit perhaps?
Either way it's pretty good but I was hoping for a circuit diagram and a ramshackle, cobbled together, free-formed circuit  _________________ The Green Dungeon Alchemist. |
|
Back to top |
|
 |
Alexander125 HG Master

Joined: 13 Jan 2009 Posts: 105 Location: Galati, Romania
|
Posted: Sun May 17, 2009 4:14 am Post subject: |
|
|
It's actually made out of an old set of speakers with some tweaked components like a couple of caps and resistors.
I'm using a stereo 324OP-AMP, powered( for now ) by a big, bulky SLA that weyghs 2-3 lbs.
The fltering circuit doesn't work so well because it's 6-V istead of nine but I'm going to swapp it.
I'll draw a complete diagram and instructions to make your own. |
|
Back to top |
|
 |
JingleJoe HG Supreme

Joined: 01 Apr 2009 Posts: 52 Location: England
|
Posted: Mon May 18, 2009 6:54 am Post subject: |
|
|
Alexander125 wrote: |
I'll draw a complete diagram and instructions to make your own. |
Success! Thankyou  _________________ The Green Dungeon Alchemist. |
|
Back to top |
|
 |
Alan Site Admin

Joined: 29 Jan 2006 Posts: 1399 Location: Winnipeg, MB
|
Posted: Tue May 19, 2009 5:35 pm Post subject: |
|
|
Looks good. Nice idea in using an existing circuit board.  |
|
Back to top |
|
 |
Alexander125 HG Master

Joined: 13 Jan 2009 Posts: 105 Location: Galati, Romania
|
Posted: Wed May 20, 2009 12:44 pm Post subject: |
|
|
finally have I done something usefull for my MP4.
gotto replace that SLA.
oh
and the schematics I used were from the Altoids Can headphone amplifier.
though, it has a hard time filtering the horrible signal noise coming from that digital MP4.
Damn it.
I hate solid state digital audio devices, coz at high volume it produces static. |
|
Back to top |
|
 |
|