Diamond buffer - Page 2 - 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 11th November 2003, 01:10 PM   #11
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Quote:
Originally posted by janneman
Per,

Nice PCB! Are you going to post the schematic?

Jan Didden
I thought you were smart guys. Have you checked the name on the pcb?

Thank you for your nice comments. SMD feels very good in my hand. I like it!

http://home5.swipnet.se/~w-50674/hif...ma_p1color.gif
__________________
/Per-Anders (my first name) or P-A as my friends call me
Super Regulator SSR03 Group buy
  Reply With Quote
Old 11th November 2003, 01:11 PM   #12
PMA is offline PMA  Europe
diyAudio Member
 
PMA's Avatar
 
Join Date: Apr 2002
Location: Prague
Sonny,

I have made a comparison of ........ (my design) with several Classé preamps, CP-65 for example. The sound of Classé was considerably less clean and had a taste of "synthetical" sound, even though their declared parameters are perfect. Power amps were Classé CAM-350 monoblocks and Wilson Audio Maxx speaker, also Wilson Sophia. The preamp mostly estimates resulting sound.
  Reply With Quote
Old 11th November 2003, 01:20 PM   #13
sonnya is offline sonnya  Denmark
diyAudio Member
 
sonnya's Avatar
 
Join Date: Oct 2001
Location: Denmark
And the AD8610 and OPA627 is in the same league. I suspect that is your preamp!?
It is very interresting to hear, that this exactly matches his words.

Sonny
__________________
Mirand Audio amps and Dac's - http://www.mirand-audio.dk
  Reply With Quote
Old 11th November 2003, 01:23 PM   #14
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Great City of Turnhout, Belgium
Blog Entries: 7
Quote:
Originally posted by peranders

I thought you were smart guys. [snip][/url]
You thought right!

Per, on the schematic (Boy, what a schematic! There's probably enough parts in there for a 6-channel THX amp. But I like it, nicely symmetric and elegant. Sometimes diagrams have their own beauty aside from their utility), the left-up transistor, I think it is T11, with the collector connected to the input, is that correct? Or is it supposed to go to gnd?

Jan Didden
  Reply With Quote
Old 11th November 2003, 01:34 PM   #15
UrSv is offline UrSv  Sweden
diyAudio Member
 
UrSv's Avatar
 
Join Date: Jan 2002
Location: Sweden
Quote:
Originally posted by peranders
[B]
I thought you were smart guys. --snip--
I wish I was. Well, any IQ is an IQ.
__________________
UrSv
Those who say it can't be done should not stop those who are doing it.
  Reply With Quote
Old 11th November 2003, 01:38 PM   #16
Eva is offline Eva  Spain
diyAudio Member
 
Eva's Avatar
 
Join Date: Oct 2003
Location: Near the sea
Send a message via MSN to Eva
SMD feels so good until circiut fails

Then you have to search for faulty components and replace them, sure it's a funny task, even funnier if you don't have any schematics

So this will be a 'beautyful-buffer' until you accidentally short output to ground, use too low load impedance or reverse supply then it should turn into a 'hell-to-repair-buffer'
  Reply With Quote
Old 11th November 2003, 01:40 PM   #17
UrSv is offline UrSv  Sweden
diyAudio Member
 
UrSv's Avatar
 
Join Date: Jan 2002
Location: Sweden
SMD = Scrap Many Development?
__________________
UrSv
Those who say it can't be done should not stop those who are doing it.
  Reply With Quote
Old 11th November 2003, 01:40 PM   #18
PMA is offline PMA  Europe
diyAudio Member
 
PMA's Avatar
 
Join Date: Apr 2002
Location: Prague
Eva,

probably not so . Good circuits have (or should have?) protections.
  Reply With Quote
Old 11th November 2003, 01:44 PM   #19
PMA is offline PMA  Europe
diyAudio Member
 
PMA's Avatar
 
Join Date: Apr 2002
Location: Prague
Per,

I did not know you were interested in Gainclone clones development and sale ....
  Reply With Quote
Old 11th November 2003, 04:13 PM   #20
ojg is offline ojg
diyAudio Member
 
Join Date: May 2003
Location: Norway
Nice design Per! I agree with you that SMD makes it look so much nicer, and there is less parasitics to worry about too.

However, looking at your distortion numbers, I could not find out which load you were measuring into, 10k? 1k? 100?

Also is the measurement with the buffer inside the feedback-loop of an op-amp or not?
  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
Sjöström Diamond Buffer group buy peranders Group Buys 159 3rd June 2014 12:51 PM
Diamond Buffer - Super Buffer peranders Solid State 34 16th May 2010 01:46 PM
diamond buffer for car project djronbxs Solid State 0 17th November 2007 01:06 PM
Diamond buffer in PIMETA slowpogo Chip Amps 3 19th April 2007 05:58 AM
what about diamond buffer MOSFET? padamiecki Solid State 26 5th October 2005 03:55 PM


New To Site? Need Help?

All times are GMT. The time now is 02:16 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