Tube-I-zator Professional PCB - Page 11 - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

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 9th April 2010, 05:32 PM   #101
diyAudio Member
 
Join Date: Feb 2004
Location: Davis,CA
Oliver:

Probably not what you had in mind when you designed board.

As soon as my transformer arrives I will attach this to my Buffalo II.

Enjoy

Bob
Attached Images
File Type: jpeg IMG_1430.jpeg (86.4 KB, 849 views)
  Reply With Quote
Old 10th April 2010, 06:44 AM   #102
diyAudio Member
 
dvb projekt's Avatar
 
Join Date: Feb 2009
Location: Willich, Germany
Blog Entries: 37
Send a message via Skype™ to dvb projekt
Bob:

Are the russian PIOs some K75-10 type you use?
__________________
Reference TDA1541A DAC project PCBs / Tube-I-zator PCB / SSHV-Shunt PCB
Stock status in my Blog
  Reply With Quote
Old 10th April 2010, 01:31 PM   #103
diyAudio Member
 
Join Date: Feb 2004
Location: Davis,CA
Oliver

Yes the caps are the K75-10s. These are the 250V types.The 500V are about twice the size.

Best and thanks

Bob
  Reply With Quote
Old 11th April 2010, 09:41 PM   #104
joemana is offline joemana  United States
diyAudio Member
 
Join Date: Oct 2006
Location: San Jose
Oliver,

How do you adjust the output gain of TubeIzator?
My preamp is keep on giving a clipping signal even though I set the input level to (-12) minimum. I'm using the 12AX7 tube and the parts that is on your parts list with Buf II. Thanks.

Joe
  Reply With Quote
Old 11th April 2010, 09:57 PM   #105
diyAudio Member
 
Join Date: Feb 2004
Location: Davis,CA
Quote:
Originally Posted by flocchini View Post
Oliver:

Probably not what you had in mind when you designed board.

As soon as my transformer arrives I will attach this to my Buffalo II.

Enjoy

Bob
I now have this up and running with the Buffalo II. It does use the Buffalo in voltage mode. Everything the Lampizator says in his Buffalo article sure rings true as I am listening.

Best

Bob
  Reply With Quote
Old 12th April 2010, 05:30 AM   #106
diyAudio Member
 
dvb projekt's Avatar
 
Join Date: Feb 2009
Location: Willich, Germany
Blog Entries: 37
Send a message via Skype™ to dvb projekt
Quote:
Originally Posted by joemana View Post
Oliver,

How do you adjust the output gain of TubeIzator?
My preamp is keep on giving a clipping signal even though I set the input level to (-12) minimum. I'm using the 12AX7 tube and the parts that is on your parts list with Buf II. Thanks.

Joe
Joe,

if you must adjust the gain level, please change the tubes.

The 12AX7 has a gain of 100.
You could change to the 6N6P (gain=22) with Rk= 250 Ohm for example.
For this you should reduce the B+ voltage to ~120V (adjust the two resistors in the anode supply).


Best,
Oliver
__________________
Reference TDA1541A DAC project PCBs / Tube-I-zator PCB / SSHV-Shunt PCB
Stock status in my Blog
  Reply With Quote
Old 14th April 2010, 10:42 PM   #107
toufu is offline toufu  United States
diyAudio Member
 
Join Date: Jun 2008
Location: San Francisco
I have been tube rolling, 12ax7 sounded very good, and 6dj8, 12at7, 12au7, not as good. Maybe just because of the different tube brand, but they were all NOS.

And my shipment of 6n1p-ev, 6n2p-ev and 6n6p have arrived, 6n6p sounded the best with the V-out dac, I haven't switched back to the Buffalo yet.
  Reply With Quote
Old 15th April 2010, 04:22 AM   #108
diyAudio Member
 
Join Date: Feb 2004
Location: Davis,CA
Quote:
Originally Posted by toufu View Post
My idle hands and racing mind do not make a good combination. I was going to sell my Marantz SA-15S1 player, but after getting the service manual, I decided to Lampizat it, and being a voltage out DAC (CS4398), I added a 1uf cap at the input and changed Ri/v to 250k. The result is much better than I expected, now I can listen to all my SACD's with this nice output module. I think my digital source system is complete (for a while at least) with:

1. Squeezebox to Buffalo II to Tube-I-Zator.
2. Marantz SA15 to Tube-I-Zator.

Thanks Oliver!
toufu

I may have missed it but are you using the Buffalo in current mode? Are you just using one of the phases?

I posted my pix of the 6SN7/6H8C setup I put together. It takes both phases (+ and - ) and inputs SE. It sounds great. Right now I am switching between this set-up and my Lundahl 1674 transformers. the transformers also sound very good and make for a nice compact system.


Best
  Reply With Quote
Old 15th April 2010, 03:30 PM   #109
toufu is offline toufu  United States
diyAudio Member
 
Join Date: Jun 2008
Location: San Francisco
Yes, I am just using it in current mode. I am using just the Out+ and Gnd. My system is all single ended.
  Reply With Quote
Old 22nd April 2010, 06:16 PM   #110
torsken is offline torsken  Norway
diyAudio Member
 
Join Date: Jan 2008
Quote:
Originally Posted by dvb-projekt View Post
At least the recommended transformer:

R-Core Transformer / ebay seller: diy-goods

R26-90: 0-150V, 0-9V X2
I finally received this transformer. There is one problem though. The 150V reads close to 200v (198). Is it possible to adjust for this (to high) voltage with resistors and if so what resistor values/watt do I need and where do I place them at the board.

Any help is highly appreciated.

Thanks
  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
STK Professional V-6 Amp--need schematics wcarthur Instruments and Amps 0 21st April 2009 01:59 PM
I need a professional opinion... sparky3489 Car Audio 0 25th June 2006 03:31 AM
professional opinion rv1890 Multi-Way 2 12th January 2005 04:22 PM
Professional Anodizing - How to? tiroth Everything Else 20 30th January 2004 08:15 PM
Anyone tried Professional DIY PHILIPS CD kit ??? till Digital Source 6 4th June 2002 10:06 AM


New To Site? Need Help?

All times are GMT. The time now is 06:18 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