31 tube in output - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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
Thread Tools Search this Thread
Old 4th July 2009, 11:49 AM   #1
aldovan is offline aldovan  Brazil
diyAudio Member
Join Date: Jul 2005
Location: Curitiba
Default 31 tube in output


I have interest in use the type 31 in output...
Anyone have experience with the 31 in output ?
My last experience is with the 3c24 and it sound very fine, a sweet tube. This unknow tubes can sound very fine.


  Reply With Quote
Old 4th July 2009, 12:12 PM   #2
diyAudio Member
Join Date: Sep 2003
Location: London
31 is a great sounding tube - sweet and very musical. One of my favourites. Great driver or line stage. Can be microphonic but there you go.

But as an output?

Headphones maybe?

  Reply With Quote
Old 4th July 2009, 02:03 PM   #3
aldovan is offline aldovan  Brazil
diyAudio Member
Join Date: Jul 2005
Location: Curitiba
Default yes, as output...


Yes, as output.
I can use a pair in paralell and obtain 800mW.
I want use in my PC computer output.
Will work fine, with the adequate power for the small boxes and with high sound quality.

  Reply With Quote
Old 4th July 2009, 11:40 PM   #4
DHT112A is offline DHT112A  United States
diyAudio Member
Join Date: Jun 2005
Location: Tacoma , WA
How is the filament to work with in the 31?
  Reply With Quote
Old 19th February 2012, 10:44 AM   #5
diyAudio Member
Join Date: Nov 2002
Ran across this thread and it got me thinking that just maybe I had a pair of 31's hidden away in my tube stash and sure enough I found a pair. I think they are only capable of about 3/8 of a watt surely not much. Anyone used them as a line stage? If so would you care to share your circuit and or observations and comments.
  Reply With Quote


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
tube output chidpon Digital Source 1 12th October 2008 01:22 PM
SS or tube voltage amplifying stages in an amp with tube output? ray_moth Tubes / Valves 14 4th July 2007 03:09 AM
Octal tube as headphone amp output tube yagoolar Headphone Systems 6 25th November 2006 09:11 PM
Is it possible to get "tube sound" with just a tube preamp and chipamp output? Spasticteapot Instruments and Amps 43 15th May 2006 05:28 PM
Output Tube biasing for Toroidal Output Transformer gingertube Tubes / Valves 7 17th April 2005 04:40 PM

New To Site? Need Help?

All times are GMT. The time now is 04:30 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2