#26 pre amp - Page 244 - 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 3rd February 2013, 07:10 PM   #2431
mogliaa is offline mogliaa  United Kingdom
diyAudio Member
 
mogliaa's Avatar
 
Join Date: Dec 2009
Location: London
Quote:
Originally Posted by massimo View Post
And what about the special LL2745 developed for Thomas Meyer? He promised to report but it was march.
Ciao Massimo,
I've been using the LL2745 lately in 5.6:2 for a tad more of gain but without increasing too much the output resistance and the performance is really good. I prefer this one compared to the LL1660.
cheers,
Ale
__________________
"A mistake is always forgivable, rarely excusable and always unacceptable. " (Robert Fripp)
http://www.bartola.co.uk/valves/
  Reply With Quote
Old 3rd February 2013, 07:20 PM   #2432
diyAudio Member
 
Join Date: Sep 2003
Location: London
That's interesting. I just tried out the LL1635 in 1:1 and it's disappointing - light on bass and less detail than the LL1660. I have a LL1692 I can try
  Reply With Quote
Old 3rd February 2013, 07:24 PM   #2433
mogliaa is offline mogliaa  United Kingdom
diyAudio Member
 
mogliaa's Avatar
 
Join Date: Dec 2009
Location: London
I don't think 1:1 is a good approach for the 26. The Ra is too high so probably won't be great in bass and less efficient driving your cables and amp input. If you need more gain go for increasing the gain of your driver instead?
__________________
"A mistake is always forgivable, rarely excusable and always unacceptable. " (Robert Fripp)
http://www.bartola.co.uk/valves/
  Reply With Quote
Old 3rd February 2013, 07:29 PM   #2434
diyAudio Member
 
amandarae's Avatar
 
Join Date: Oct 2004
Location: Diamond Bar, CA
Is it really necessary to suspend the 26 tubes from the chassis? Just want to know.
  Reply With Quote
Old 3rd February 2013, 07:56 PM   #2435
diyAudio Member
 
Join Date: Aug 2005
Default Just finished my first chassis!

Last photos from the work done on the main chassis, now will start with the PS, hope you all enjoy it.
Attached Images
File Type: jpg IMG-20130203-00512.jpg (184.7 KB, 252 views)
File Type: jpg IMG-20130203-00513.jpg (182.8 KB, 244 views)
File Type: jpg IMG-20130203-00514.jpg (197.8 KB, 242 views)
File Type: jpg IMG-20130203-00515.jpg (131.3 KB, 242 views)
File Type: jpg IMG-20130203-00519.jpg (122.1 KB, 235 views)
File Type: jpg IMG-20130203-00520.jpg (128.9 KB, 141 views)
  Reply With Quote
Old 3rd February 2013, 08:07 PM   #2436
diyAudio Member
 
merlin el mago's Avatar
 
Join Date: Sep 2009
Location: Catalonia - Europe
It's really a pleasure look your work, it's always an inspiration, thanks to share. These four tubes are VR regs. or are you including a phono stage?

Last edited by merlin el mago; 3rd February 2013 at 08:27 PM.
  Reply With Quote
Old 3rd February 2013, 08:25 PM   #2437
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
It looks neat outside, but to me it is always torture to see heatsinks with fins oriented perpendicularly to air flow. Like sandpaper on teeth. :-)
__________________
The Devil is not so terrible as his math model is!
  Reply With Quote
Old 3rd February 2013, 08:51 PM   #2438
diyAudio Member
 
Vinylsavor's Avatar
 
Join Date: Feb 2002
Location: Lindau
Hi Rui!

Quote:
Originally Posted by rclourenco View Post
Last photos from the work done on the main chassis, now will start with the PS, hope you all enjoy it.
Excellent job! Very neat wiring! Congratulations!

Thomas
__________________
http://vinylsavor.blogspot.com/
  Reply With Quote
Old 3rd February 2013, 09:07 PM   #2439
mogliaa is offline mogliaa  United Kingdom
diyAudio Member
 
mogliaa's Avatar
 
Join Date: Dec 2009
Location: London
Hey Rui, it looks superb! Well done! How much work left for a first listening test?
Ale
__________________
"A mistake is always forgivable, rarely excusable and always unacceptable. " (Robert Fripp)
http://www.bartola.co.uk/valves/
  Reply With Quote
Old 3rd February 2013, 09:24 PM   #2440
diyAudio Member
 
Join Date: Aug 2005
Quote:
Originally Posted by merlin el mago View Post
It's really a pleasure look your work, it's always an inspiration, thanks to share. These four tubes are VR regs. or are you including a phono stage?
Thanks, these are VR tubes!
  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



New To Site? Need Help?

All times are GMT. The time now is 02:31 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