Super cheap triode amplifier - Page 10 - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

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
Reply
 
Thread Tools Search this Thread
Old 4th December 2012, 05:02 AM   #91
diyAudio Member
 
Mosquito's Avatar
 
Join Date: Sep 2009
Location: Santa Fe, Argentina
Aldovan, I like your amp and truly appreciate your "sleeper tubes" findings, but I suggest you to capture your sound clips trough the microphone incorporated in Your PC earphones, and record it in a cassette recorder boombox, on a type "D" TDK, and then share it. This probably would be a whole lot nearest to a tiny fraction of high fidelity, than the "sound" of a YouTube video..
  Reply With Quote
Old 1st March 2013, 10:42 PM   #92
diyAudio Member
 
scott17's Avatar
 
Join Date: Aug 2009
Location: JFK
Hi Aldovan,

I built a parallel single-ended version using 12W6 with a 6N1P driver. Sounds very nice. Thanks for the idea!

Scott
  Reply With Quote
Old 2nd March 2013, 05:23 PM   #93
aldovan is offline aldovan  Brazil
diyAudio Member
 
Join Date: Jul 2005
Location: Curitiba
Quote:
Originally Posted by scott17 View Post
Hi Aldovan,

I built a parallel single-ended version using 12W6 with a 6N1P driver. Sounds very nice. Thanks for the idea!

Scott
Scott

I'm happy for you like the results.
I do projects with forgotten tubes and have nice surprises...
My last project was with the tetrode 865 in triode mode and the sound is as good as a 2A3... if you find some pieces , get it!
RCA 865 in triode mode single ended class A - YouTube
I am now doing a project of an amplifier for more power, with another pentode forgotten and then I'll post here!
A hug and good fun!

Aldovan
  Reply With Quote
Old 2nd March 2013, 06:35 PM   #94
aldovan is offline aldovan  Brazil
diyAudio Member
 
Join Date: Jul 2005
Location: Curitiba
Quote:
Originally Posted by scott17 View Post
Hi Aldovan,

I built a parallel single-ended version using 12W6 with a 6N1P driver. Sounds very nice. Thanks for the idea!

Scott
Scott

Only more one information...the E180F or 6J9P will sound better.
If you can obtain one, you will listen the difference !

Aldovan
  Reply With Quote
Old 2nd March 2013, 11:33 PM   #95
diyAudio Member
 
scott17's Avatar
 
Join Date: Aug 2009
Location: JFK
Do you run the E180F driver triode strapped?

Quote:
Originally Posted by aldovan View Post
Scott

Only more one information...the E180F or 6J9P will sound better.
If you can obtain one, you will listen the difference !

Aldovan
  Reply With Quote
Old 2nd March 2013, 11:38 PM   #96
AJT is offline AJT  Philippines
diyAudio Moderator
 
AJT's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
the Russian 6J9 sells cheap and is good sounding, i used it in pentode as input tube in place of the EF86...it has more gain than the 6N1p...

triode test results for a Raytheon 6688......
Raytheon 6688 : G2 connected directly to A : G3 connected to A with 100R : Vh = 6.3V
At 150V/16.6mA, Gm = 17.6mA/V and mu = 60, Rp = 3.4k : Plim = Pa 2.7W + Pg2 = 0.6W
__________________
the best advertisement for a good audio design is the number of diy'ers wanting to build it after all the years....never the say so of so called gurus....
  Reply With Quote
Old 3rd March 2013, 01:30 AM   #97
diyAudio Member
 
scott17's Avatar
 
Join Date: Aug 2009
Location: JFK
I will try the 6J9.

I am very impressed with the the 6N1P in parallel however.

Thanks.

Quote:
Originally Posted by Tony View Post
the Russian 6J9 sells cheap and is good sounding, i used it in pentode as input tube in place of the EF86...it has more gain than the 6N1p...

triode test results for a Raytheon 6688......
Raytheon 6688 : G2 connected directly to A : G3 connected to A with 100R : Vh = 6.3V
At 150V/16.6mA, Gm = 17.6mA/V and mu = 60, Rp = 3.4k : Plim = Pa 2.7W + Pg2 = 0.6W

Last edited by scott17; 3rd March 2013 at 01:43 AM.
  Reply With Quote
Old 3rd March 2013, 01:36 AM   #98
aldovan is offline aldovan  Brazil
diyAudio Member
 
Join Date: Jul 2005
Location: Curitiba
Quote:
Originally Posted by scott17 View Post
Do you run the E180F driver triode strapped?
Yes, in triode mode !
  Reply With Quote
Old 3rd March 2013, 01:49 AM   #99
aldovan is offline aldovan  Brazil
diyAudio Member
 
Join Date: Jul 2005
Location: Curitiba
Quote:
Originally Posted by aldovan View Post
Yes, in triode mode !
The E180F = 6J9P
  Reply With Quote
Old 25th May 2014, 02:17 AM   #100
maton00 is offline maton00  Mexico
diyAudio Member
 
maton00's Avatar
 
Join Date: Feb 2012
Location: Queretaro
Send a message via MSN to maton00
Hey aldovan do the woofers in the 25L6GT video are the Aura NS6-255-8A?
Those are good also very sensible speakers those do make a lot of noise with a watt or so.
  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
Has anyone here built something with this super triode? Molloy Tubes / Valves 0 12th January 2010 02:04 AM
Super Triode Connection Amplifier Build with 6BM8 and 6AK5 DerFly Tubes / Valves 35 3rd November 2009 08:45 AM
Super Triode Conection amps - opinions needed Petman Tubes / Valves 2 25th October 2003 02:00 AM


New To Site? Need Help?

All times are GMT. The time now is 05:49 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