New Amp! - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 24th February 2003, 06:17 PM   #1
diyAudio Member
 
Join Date: Jan 2002
Location: Sweden
Send a message via ICQ to Christian
Default New Amp!

Well,
just finished my complement amp to a small subwoofer I have. Used the same case as in the stereo-version for a more consistent look.
Is it a gainclone? I don't know since I'm not sure what a gainclone is, but it is based on the LM3886 chip.

Anyways, couldn't find somewhere else to post it since it's not a passlabs design, so you will juste have to comment on it!


/Chris
Attached Images
File Type: jpg monoblock-1 copy.jpg (96.3 KB, 529 views)
  Reply With Quote
Old 24th February 2003, 06:18 PM   #2
diyAudio Member
 
Join Date: Jan 2002
Location: Sweden
Send a message via ICQ to Christian
no.2
Attached Images
File Type: jpg monoblock-2 copy.jpg (82.8 KB, 513 views)
  Reply With Quote
Old 24th February 2003, 06:19 PM   #3
diyAudio Member
 
Join Date: Jan 2002
Location: Sweden
Send a message via ICQ to Christian
the complete system
Attached Images
File Type: jpg amps copy.jpg (78.2 KB, 485 views)
  Reply With Quote
Old 24th February 2003, 06:21 PM   #4
halojoy is offline halojoy  Sweden
On Hiatus
 
Join Date: Nov 2002
Default Re: New Amp!

Quote:
Originally posted by Christian
Well, just finished my complement amp to a small subwoofer I have. Used the same case as in the stereo-version for a more consistent look.
Is it a gainclone? I don't know since I'm not sure what a gainclone is, but it is based on the LM3886 chip.
/Chris
Look nice.
You have used p2p wiring. Wireing litterally.
That is what I should tidy up a bit.
Making the wires as short as possible and use some clips
at the appropriate places.

How about the box? Did you buy it?
The box looks just right for amplifiers. Very nice looking!
You use the chassis as cooler, I imagine.

/halo
  Reply With Quote
Old 24th February 2003, 06:32 PM   #5
diyAudio Member
 
Join Date: Jan 2002
Location: Sweden
Send a message via ICQ to Christian
Jupp, bought the case at ELFA, about 30$ so definetly worth it!

I guess the enclosure will be sufficient for cooling cause' I used a 80W toroid, +-20V.

I drive the led directly of the -20V supply, no regulator. Also, didn't use any small 0,1microF caps over those big rifas. Works pretty well without those + the last time I used it I got A LOT of hum. don't know why, they could have been old?

/Chris
  Reply With Quote
Old 24th February 2003, 07:43 PM   #6
halojoy is offline halojoy  Sweden
On Hiatus
 
Join Date: Nov 2002
Thumbs up Chrstian New Amp

Quote:
Originally posted by Christian
Jupp, bought the case at ELFA, about 30$ so definetly worth it!
I guess the enclosure will be sufficient for cooling cause' I used a 80W toroid, +-20V.
I drive the led directly of the -20V supply, no regulator. Also, didn't use any small 0,1microF caps over those big rifas. Works pretty well without those + the last time I used it I got A LOT of hum. don't know why, they could have been old?
/Chris
I never use any films parallelled electrolytes.
I have seen serious research on the web, that shows it is just a waste.
In order for film caps to make any effect for the load,
they have to have an inductance or an resistance to work with.

If you put Electrolytes in bigginning of a wire
end the film cap at end of wire, near the circuit
it has some effect. Because the wire acts as an small L+R.
Making an LC and RC filter.
------------------------------------------------

I found your enclosure in ELFA, article # 50-100-20
319 SKr+Vat, makes 400 Skr (40-45$)
Size 330x185x75 mm (13" x 7.5" x 3")

Sure looks very nice - looks a lot better than 400 Svedish Krowns!

/halo - prefer the look of amp - to the look of bucks
  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



New To Site? Need Help?

All times are GMT. The time now is 11:45 AM.


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