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 12th December 2018, 11:22 AM   #451
marconi118 is offline marconi118  Germany
diyAudio Member
 
Join Date: Mar 2008
is the input buffer needed?
can't a dac directly drive the gitter of the tube?
  Reply With Quote
Old 12th December 2018, 05:36 PM   #452
Nelson Pass is offline Nelson Pass  United States
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
B1 with Korg Triode
The Grid requires a fairly low source impedance. At the same time, the
circuit has about 16 dB of gain, and so will want input attenuation,
whose impedance might be too high for best performance.

Not to say that that you couldn't do it....
  Reply With Quote
Old 12th December 2018, 08:30 PM   #453
ludkokanta is offline ludkokanta  Croatia
diyAudio Member
 
Join Date: Sep 2008
Re-invert phase and reduce gain with 3:1 transformer?
  Reply With Quote
Old 13th December 2018, 06:15 PM   #454
Nelson Pass is offline Nelson Pass  United States
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
B1 with Korg Triode
You can give it a try.

  Reply With Quote
Old 14th December 2018, 09:04 AM   #455
marconi118 is offline marconi118  Germany
diyAudio Member
 
Join Date: Mar 2008
what is the max output Vpp still keeping the right harmonic profile?

maybe 13 dB if gain isn't too much if I use a passive I/V TDA1541 nos DAC?
  Reply With Quote
Old 14th December 2018, 04:31 PM   #456
Marcopolo is offline Marcopolo  Canada
diyAudio Member
 
Join Date: Oct 2012
Location: Montreal
It is with interest that I am the conversations and projects in this community.
I just received the korg Nutube and Toshiba Jfet 2SK170 parts.
I look forward to having fun with the B1 triode printed circuit board that you offer us.
I thank you for your generosity in passing on your knowledge and intuition you have acquired over the years.

NAMASTE
  Reply With Quote
Old 14th December 2018, 06:43 PM   #457
Nelson Pass is offline Nelson Pass  United States
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
B1 with Korg Triode
Quote:
Originally Posted by marconi118 View Post
what is the max output Vpp still keeping the right harmonic profile?
That's up to you. The 1% figure is a 1V rms which is 2.8V p-p.

For me, that works out fine. The point is that the harmonic signature is
a function of the output voltage of the tube. You might have to think
about adjusting the gain/sensitivity of what follows it.
  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 140 15th December 2018 05:45 PM
New tube tech from Korg Newk_Yuler Tubes / Valves 38 15th January 2017 02:55 AM
2 X PIONEER CDJ-1000 MK3 PLAYER, Korg M3 88-Key Workstation / Sampler,Yamaha Korg holocoast Vendor's Bazaar 0 22nd August 2009 08:03 AM
tapping into keyboard of Korg Polysix mashaffer Instruments and Amps 0 5th October 2008 02:06 AM
Just ordered a Korg EMX-1 MikeHunt79 Tubes / Valves 5 19th May 2008 09:34 PM


New To Site? Need Help?

All times are GMT. The time now is 08:30 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki