Go Back   Home > Forums > Amplifiers > Headphone Systems

Headphone Systems Everything to do with Headphones

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 18th April 2010, 03:08 AM   #1
diyAudio Member
 
ashok's Avatar
 
Join Date: Jun 2002
Location: 3RS
Default 12Volt tube based Headphone amp

I came across a headphone tube amp running on 12 volts. I'm skeptical about how it would sound as the tube is running in what would normally be considered a non linear range. It is easy to build and maybe someone could comment on how it sounds !
There is also a link to a US NAvy Lesson on tube operation. I haven't read it but it might be interesting to go through it sometime.

Here are the links.

http://diyaudioprojects.com/Solid/12...LM317-Headamp/



http://diyaudioprojects.com/Solid/12...S-Module-6.pdf
__________________
AM

Last edited by ashok; 18th April 2010 at 03:10 AM.
  Reply With Quote
Old 20th April 2010, 12:01 PM   #2
diyAudio Member
 
BoilermakerFan's Avatar
 
Join Date: Jan 2008
Quote:
Originally Posted by ashok View Post
I came across a headphone tube amp running on 12 volts. I'm skeptical about how it would sound as the tube is running in what would normally be considered a non linear range. It is easy to build and maybe someone could comment on how it sounds !
There is also a link to a US NAvy Lesson on tube operation. I haven't read it but it might be interesting to go through it sometime.

Here are the links.

NP-100v12: DIY 12AU7 (ECC82) Tube / IRF510 MOSFET Headphone Amplifier



http://diyaudioprojects.com/Solid/12...S-Module-6.pdf
The 12AU7, 12FK7, and 12FM7 tubes are 12V tubes, originally designed for automotive radios. The Millett Hybrid MAX and the revised MOSFET-MAX are similar DIY designs that can use the IRF510/9510s as output buffers.
  Reply With Quote
Old 21st April 2010, 02:09 AM   #3
diyAudio Member
 
ashok's Avatar
 
Join Date: Jun 2002
Location: 3RS
12AU7 ( ECC82 ? ) is a 12 V tube , but that is only the heater voltage.

The operating voltage on the anode is usually much higher than that. Closer to a 100 or so volts. The operating point with very low anode voltage will be in the non linear region . Can anyone who has tried this circuit tell us how 'audible' is the associated distortion ?
Cheers.
__________________
AM
  Reply With Quote
Old 21st April 2010, 02:48 AM   #4
diyAudio Member
 
BoilermakerFan's Avatar
 
Join Date: Jan 2008
Quote:
Originally Posted by ashok View Post
12AU7 ( ECC82 ? ) is a 12 V tube , but that is only the heater voltage.

The operating voltage on the anode is usually much higher than that. Closer to a 100 or so volts. The operating point with very low anode voltage will be in the non linear region . Can anyone who has tried this circuit tell us how 'audible' is the associated distortion ?
Cheers.
Oops. Sorry, hadn't had my coffee. I meant 12AE6... I don't think I'd run a 12AU7 at 12V.
  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
Fault with MOSFET based headphone amp zebra100 Headphone Systems 8 7th October 2008 03:29 PM
OP Amp based headphone amplifier. zebra100 Headphone Systems 32 1st October 2008 09:00 AM
12volt amp using stk? ejasoft Chip Amps 1 9th June 2008 01:41 AM
Headphone amp based on 45? Eclair Headphone Systems 11 23rd August 2007 02:26 AM
Aikado Based Tubed Headphone Amp dr._sleep Headphone Systems 6 28th August 2005 11:26 PM


New To Site? Need Help?

All times are GMT. The time now is 04:32 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