Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

B1 with Korg Triode
B1 with Korg Triode
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 5th July 2019, 10:32 PM   #2661
Zen Mod is offline Zen Mod  Serbia
Official Court Jester
diyAudio Member
 
Zen Mod's Avatar
 
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
B1 with Korg Triode
naah

forced is making me nervous and always trying to hear is there noise and is it elevated

besides that , you need space for proper linear PSU

I don't like switchers , though if you shoot to smaller form factor amplifier , you can't go wrong with ACA
__________________
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote
Old 6th July 2019, 12:55 AM   #2662
bullitt5094 is offline bullitt5094  United States
DIY Rookie
diyAudio Member
 
bullitt5094's Avatar
 
Join Date: Jan 2012
Location: Cypress, TX
B1 with Korg Triode
I'm certainly impressed with the ACA. But for seriously dynamic music at higher gain levels you need two of them. I'm assuming an F5 would sound better than two bridged ACAs. I was also thinking of putting the PSU remotely in it's own box and use a smaller box for the amp itself. You wouldn't have to worry about the PSU magnetic fields either. But just thinking out loud.
  Reply With Quote
Old 6th July 2019, 01:08 AM   #2663
elwood625 is offline elwood625  United States
diyAudio Member
 
elwood625's Avatar
 
Join Date: Jan 2013
Location: Illinois
I just finished reading this thread, taking notes, and ordering the PCB kit and a chassis, I'm in the purchasing phase.
I do have one question regarding a tube based source as an input, 6L6 made reference in regards to a question about input pot 20K, 50K, 100K. Is there anything different needed for the 6AX7a phono section as an input to the Korg?
  Reply With Quote
Old 11th July 2019, 06:18 AM   #2664
BrianGasberg is offline BrianGasberg  Denmark
diyAudio Member
 
Join Date: Feb 2019
Prototype ready for music
It sounds absolutely beautiful playing with an Aleph 5...


IMG_0106.JPEGIMG_0107.JPEG
  Reply With Quote
Old 12th July 2019, 07:23 AM   #2665
Grunnet is offline Grunnet  Denmark
diyAudio Member
 
Join Date: May 2016
Location: Denmark
Just to report a successful build. I bought the parts (incl Nutube) from the Diyaudio store, added Takman metal foil resistors and Panasonic FM power capacitors (1000uF and 2200uF) plus Silmic 10uF for the signal path (the latter bypassed with polypropylenes). Finally added a separate, 2 meter removed, psu with a cheap chinese psu and trafo. Everything worked perfectly from day one, absolutely no noise, whatever I did to provoke it (within reason). Now I am waiting for the Meanwell power supply recommended by Laverda, as the effect that Laverda described is the only improvement, I can think of. All in all, a very happy teddy.
  Reply With Quote
Old 12th July 2019, 07:51 AM   #2666
Bassivus is offline Bassivus  Serbia
diyAudio Member
 
Bassivus's Avatar
 
Join Date: Aug 2004
Location: Novi Sad, Vojvodina
Quote:
Originally Posted by Grunnet View Post
Just to report a successful build. I bought the parts (incl Nutube) from the Diyaudio store, added Takman metal foil resistors and Panasonic FM power capacitors (1000uF and 2200uF) plus Silmic 10uF for the signal path (the latter bypassed with polypropylenes). Finally added a separate, 2 meter removed, psu with a cheap chinese psu and trafo. Everything worked perfectly from day one, absolutely no noise, whatever I did to provoke it (within reason). Now I am waiting for the Meanwell power supply recommended by Laverda, as the effect that Laverda described is the only improvement, I can think of. All in all, a very happy teddy.
Can you please report your experience on PP bypassing Silmics? What have you used and did it bring more clarity? I can definitely hear the elcos signature and it starts to bother me
  Reply With Quote
Old 12th July 2019, 08:09 AM   #2667
Grunnet is offline Grunnet  Denmark
diyAudio Member
 
Join Date: May 2016
Location: Denmark
I only bypassed the Silmics because of routine. At some point I have decided that bypassing electrolytics in the signal path makes the sound better (clearer, smother, more open, whatever) - honestly, I have forgotten why. On the other hand, I never bypass power electrolytics as I did not find any change there. For bypassing smaller electrolytics like these, I have settled on Roederstein 0,01uF. All this may sound silly, but I experimented quite a lot many years ago and am still following the routine I established then. Excercising a bit of Maoist self-critique, developments in production/design may have made my routines completely obsolete, but it hopefully wont harm the quality of sound.
  Reply With Quote
Old 12th July 2019, 04:50 PM   #2668
Nelson Pass is offline Nelson Pass  United States
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
B1 with Korg Triode
Bypassing electrolytics might not make it much better, but it I have not
seen a case where it's worse.

  Reply With Quote
Old 12th July 2019, 04:56 PM   #2669
MEPER is offline MEPER  Denmark
diyAudio Member
 
MEPER's Avatar
 
Join Date: Nov 2017
Location: Copenhagen
It is interesting to calculate (or measure) the impedance of the bypass capacitor compared to the ecap or the change in impedance ecap alone compared to ecap + bypass cap. It is usually close to "nothing"......even at relative high frequencies.
  Reply With Quote
Old 13th July 2019, 11:18 AM   #2670
Grunnet is offline Grunnet  Denmark
diyAudio Member
 
Join Date: May 2016
Location: Denmark
Just to report, that the Meanwell RS-75-24 works very well with the B1 Nutube. The sound is remarkably good!
  Reply With Quote

Reply


B1 with Korg TriodeHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Korg NuTube is now available online pmillett Vendor's Bazaar 149 28th May 2019 10:46 PM
New tube tech from Korg Newk_Yuler Tubes / Valves 38 15th January 2017 01:55 AM
2 X PIONEER CDJ-1000 MK3 PLAYER, Korg M3 88-Key Workstation / Sampler,Yamaha Korg holocoast Vendor's Bazaar 0 22nd August 2009 07:03 AM
tapping into keyboard of Korg Polysix mashaffer Instruments and Amps 0 5th October 2008 01:06 AM
Just ordered a Korg EMX-1 MikeHunt79 Tubes / Valves 5 19th May 2008 08:34 PM


New To Site? Need Help?

All times are GMT. The time now is 12:17 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki