4-part Harmony, a 9 watt class A amp using a voltage regulator IC. - Page 5 - 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 28th January 2006, 07:22 PM   #41
thalis is offline thalis  Greece
diyAudio Member
 
Join Date: Jan 2004
Location: Athens
BUMP!

Im just bringing in surface this old thread.
I admire Ciclotron's creativity!
And I'm going to experiment with all his 317 circuits ;-))

Regards,
Thalis
  Reply With Quote
Old 28th January 2006, 07:59 PM   #42
joensd is offline joensd  Germany
diyAudio Member
 
Join Date: Dec 2001
Location: Germany
Youll find similar interesting circuits here.
tubecad
This is Just an example though, theres much more on tubecad.

greets
Jens
__________________
jens
  Reply With Quote
Old 28th January 2006, 08:07 PM   #43
thalis is offline thalis  Greece
diyAudio Member
 
Join Date: Jan 2004
Location: Athens
Yes dear joensd, I was aware of this 4W se LM317 amp, after all it is also mentioned in the 2nd post of this thread - but thanks anyway :-)
  Reply With Quote
Old 28th January 2006, 08:57 PM   #44
joensd is offline joensd  Germany
diyAudio Member
 
Join Date: Dec 2001
Location: Germany
__________________
jens
  Reply With Quote
Old 24th August 2006, 10:57 AM   #45
hifryer is offline hifryer  Australia
diyAudio Member
 
Join Date: Mar 2004
Location: Sydney
Default amps

Down to Circlotron ,this is a SUPER COOL thread!!!

Circlotron, If I wanted to experiment with all these, in dual mono what would you recommend as the best one channel Power supply for these purposes, as a keeper.

If essential I guess I could get tapped secondary toroids built to allow some range of high current low impedance supply.

I guess I need windings for the ocassional +/- 15V ultimate DC op-amp supplies also??? What is best for these without frying regs but with adequate headroom?

Do you have a pet DIY, super quality, lab supply you love? I want to build high quality and NOT just buy a single or dual lab supply!!

For ultimate versatility do I need dual??

thanks
  Reply With Quote
Old 24th August 2006, 11:15 AM   #46
diyAudio Member
 
Circlotron's Avatar
 
Join Date: Jun 2002
Location: Melbourne, Australia
Well, seeing they are a power supply reg, they have great supply rejection They are about as uncritical as you can get. Don't go nuts with the supply voltage; use just enough to guarantee maximum positive output swing and that'd do, I reckon. 4700uF should be enough across the supply rail. I used ST brand regs - not sure if I mentioned that - so I can't guarantee results with another but i'd be interested to hear how you go!
__________________
Best-ever T/S parameter spreadsheet.
http://www.diyaudio.com/forums/multi...tml#post353269
  Reply With Quote
Old 24th August 2006, 11:30 AM   #47
hifryer is offline hifryer  Australia
diyAudio Member
 
Join Date: Mar 2004
Location: Sydney
Ciclotron,

what voltage and VA AC from the trans??

Despite PSRR, will one trans and supply do 2 channels or is dual better?

thanks
  Reply With Quote
Old 24th August 2006, 12:27 PM   #48
ash_dac is offline ash_dac  United Kingdom
diyAudio Member
 
Join Date: Jan 2005
Location: UK
Hi,


What specs' does the op amp that's inside a LM317 have?

Could probably work it out form the LM317 datasheet graphs I guess but I'm feeling lazy.
  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
JLH 10 Watt class A amplifier tschrama Solid State 3019 19th June 2014 11:57 PM
10,000 watt class D amp BillyDoc Class D 19 8th May 2009 06:58 PM
Re: JLH 10 Watt class A amplifier DomKo Solid State 16 13th February 2004 06:27 AM
Eight Part Harmony: The Tao Headphone Buffer Steve Eddy Headphone Systems 4 13th November 2003 06:19 PM


New To Site? Need Help?

All times are GMT. The time now is 02:57 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