GU 50 monoblock - 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 19th October 2011, 05:28 PM   #1
gedd is offline gedd  Romania
diyAudio Member
 
Join Date: Aug 2006
Default GU 50 monoblock

hello dear "audio"friends...I managed to do this...since this is my first post on this forum....I can hardly wait your opinions...remarks etc
Attached Images
File Type: jpg Picture 001.jpg (317.2 KB, 474 views)
File Type: jpg Picture 002.jpg (215.3 KB, 427 views)
File Type: jpg Picture 003.jpg (344.5 KB, 412 views)
File Type: jpg Picture 021.jpg (269.0 KB, 381 views)
File Type: jpg Picture 028.jpg (342.7 KB, 376 views)
File Type: jpg Picture 033.jpg (295.7 KB, 195 views)
File Type: jpg Picture 032.jpg (286.1 KB, 159 views)
File Type: jpg Picture 024.jpg (337.6 KB, 121 views)
File Type: jpg Picture 027.jpg (258.3 KB, 124 views)
File Type: jpg Picture 023.jpg (714.1 KB, 147 views)
  Reply With Quote
Old 19th October 2011, 05:42 PM   #2
gedd is offline gedd  Romania
diyAudio Member
 
Join Date: Aug 2006
Default me again...schematics of the williamson "amplifier"

I put here the original schematic that I used...with the following modifications: V1,2 V3,4=6N6P(russian) Ua=400V R2=18k/1w,R6=12k/1w,I also added a trim pot(20K) on the anode of V3,4 for simetry of the signal...now the most important part..I used one pair of GU50/channel,so the OT(output trafo) becames Raa=6k4 5000 windings of CuEm=0,25 and secondary 189 windings of 0,6CuEm you can see in the attachment...I used 28Cm2 instead of 24Cm2
Attached Images
File Type: jpg GU50.JPG (38.0 KB, 335 views)
File Type: jpg W1949%2520parts.jpg (68.1 KB, 299 views)
File Type: jpg W1949MK1.jpg (27.1 KB, 260 views)
Attached Files
File Type: pdf Defazor 6N6P si 6N6P final.pdf (32.4 KB, 108 views)
File Type: pdf Defazor 6N1P si 6N6P-cu gauri.pdf (43.8 KB, 86 views)
File Type: pdf Defazor 6N6P-f piese.pdf (30.5 KB, 96 views)
File Type: pdf TRAFGU50.pdf (24.7 KB, 119 views)
  Reply With Quote
Old 19th October 2011, 06:37 PM   #3
TheGimp is offline TheGimp  United States
diyAudio Member
 
TheGimp's Avatar
 
Join Date: Aug 2009
Location: Johnson City, TN
Nise, and good documentation.

How does it sound?
  Reply With Quote
Old 19th October 2011, 06:47 PM   #4
gedd is offline gedd  Romania
diyAudio Member
 
Join Date: Aug 2006
Default hello

Quote:
Originally Posted by TheGimp View Post
Nise, and good documentation.

How does it sound?
warm...POWERFULL..clear....
  Reply With Quote
Old 20th October 2011, 12:51 PM   #5
diyAudio Member
 
Join Date: Aug 2008
All well and good, but you didnt show the real schematic yet, just a generic one...

Also, I am sure it will not play very well on top of your loudspeaker.
  Reply With Quote
Old 20th October 2011, 06:22 PM   #6
gedd is offline gedd  Romania
diyAudio Member
 
Join Date: Aug 2006
Quote:
Originally Posted by costis_n View Post
All well and good, but you didnt show the real schematic yet, just a generic one...

Also, I am sure it will not play very well on top of your loudspeaker.
everything is there not generic....download all attachments and you will see
  Reply With Quote
Old 21st October 2011, 04:03 AM   #7
diyAudio Member
 
Join Date: Feb 2006
Location: Bucharest-Romania
Data viitoare sa specifici in titlu ca amplificatorul este PP , ca sa nu mai piarda vremea cu subiectul tau......( into Romanian )
Next time you specify in the title as the amplifier is PP not to spend time with your subject ......
  Reply With Quote
Old 21st October 2011, 09:43 AM   #8
gedd is offline gedd  Romania
diyAudio Member
 
Join Date: Aug 2006
Quote:
Originally Posted by hpavictor View Post
Data viitoare sa specifici in titlu ca amplificatorul este PP , ca sa nu mai piarda vremea cu subiectul tau......( into Romanian )
Next time you specify in the title as the amplifier is PP not to spend time with your subject ......
so..is there a problem? I don't think so...my subject was just like in the title....I wasn't refering to PP or SE...whoever is curious...is free to look...so...do you have a problem with that? I don't see something concret on this forum...so...until that...mind of your own buisness...vanity pisses me off....romanian vanity..I don't get rid of this...not even here... "Originally Posted by TheGimp
Nise, and good documentation.

How does it sound?" He understands....see?

Last edited by gedd; 21st October 2011 at 09:55 AM.
  Reply With Quote
Old 21st October 2011, 10:08 AM   #9
diyAudio Member
 
Join Date: Aug 2008
I downloaded everything. All I saw was a 1955 Mullard schematic, a schematic from your final stage, without driver, and 4 PCB layouts. Now I do not know what Gimp saw, but am I supposed to trace the PCB's to see how is your circuit wired???
  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
GU-50, GM70 and KT88 nina Tubes / Valves 44 27th September 2012 05:14 PM
Building new GU-50 stereo amp... Wavebourn Tubes / Valves 129 4th August 2011 04:26 PM
GU 50 output modification beamnet Tubes / Valves 22 15th January 2010 03:02 PM
Use of 12j1l and gu-50 tubes gemby Tubes / Valves 6 26th October 2008 09:56 PM
GU-50 output trafo croccodillo Tubes / Valves 7 11th May 2007 08:55 AM


New To Site? Need Help?

All times are GMT. The time now is 07:07 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