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

Tubelab Discussion and support of Tubelab products, prototypes and experiments

Reply
 
Thread Tools Search this Thread
Old 21st December 2018, 12:05 AM   #21
Tubelab_com is offline Tubelab_com  United States
diyAudio Member
 
Tubelab_com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
You can connect your aux cap directly across C5.

310 volts is fine. My amp runs 320 volts and I am still using the same set of tubes that I put in the amp when I built it. They were pulled from an old radio with date tags from 1929, almost 90 years old and still kicking.
__________________
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
  Reply With Quote
Old 21st December 2018, 12:41 AM   #22
phas10eezy is offline phas10eezy  United States
diyAudio Member
 
Join Date: May 2018
Thanks George. I will just have to enlarge the pad holes slightly to fit the wires in with C5.


I've also built the T-SSE [EL34/KT88] several months back and find a noticeable difference between the two amps in detail, air. natural timber, and vocal presence in favor of TSE 45. I am currently using only the GXSE10-5k OPTs and Orange Drop coupling caps with the TSE; I think I will have to invest in better OPTs and coupling caps to really bring out more of the TSE's potential.


Thanks for responding and making this design available.
  Reply With Quote
Old 21st December 2018, 02:00 PM   #23
Tubelab_com is offline Tubelab_com  United States
diyAudio Member
 
Tubelab_com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
Quote:
I will just have to enlarge the pad holes slightly
......DO NOT DO THAT.....


The holes are plated through and the plating makes the connection from one side of the board to the other. Drilling this out will rip out the plating and break the connection.

Simply tack the wires to the pads of C5 on the back side of the board.
__________________
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
  Reply With Quote
Old 21st December 2018, 05:21 PM   #24
phas10eezy is offline phas10eezy  United States
diyAudio Member
 
Join Date: May 2018
Hi George... the aux cap wires and C5 leads fit in the pad holes just fine; no mods made. Thanks again.

I did, however, decide to lower B+ by changing C4 to 33uf/500V and using a 5U4GB rectifier. B+ now 288V and 45 plates at 280V.


I think I can now put it in a chassis.
  Reply With Quote
Old 25th December 2018, 01:41 AM   #25
Pooch is offline Pooch  United States
diyAudio Member
 
Join Date: Nov 2010
Default TSE boards...

Are they no longer available? What parts are difficult to get?
  Reply With Quote
Old 25th December 2018, 08:05 PM   #26
Tubelab_com is offline Tubelab_com  United States
diyAudio Member
 
Tubelab_com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
I still have about 25 TSE boards left. The Sharp filament regulator went extinct several years ago, but Mouser and Digikey had stock. They are gone. I have some regulators and one will be included free with each TSE board purchased until stock is gone.

Meanwhile I am looking to redesign the board. Several options exist for the new board, see this thread:

After a 14 year run, the TSE must DIE!
__________________
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
  Reply With Quote
Old 8th January 2019, 07:28 PM   #27
phas10eezy is offline phas10eezy  United States
diyAudio Member
 
Join Date: May 2018
thinking of ordering electra prints for my TSE 45... would these specs [current and output] be sufficient?


5K [primary Z]
50mA current
5 watts output
8 ohm [my speaker impedance]
  Reply With Quote
Old 9th January 2019, 04:12 AM   #28
rmyauck is offline rmyauck  Canada
diyAudio Member
 
Join Date: Apr 2009
I picked up some used Lundhal trans with all the same specs, except they are good to 8W & they should be perfect for that tube or even the 2A3, as you can get it in single plate from JJ (called a 2A3-40). I may even try with 300B since they are 8W !

You may want to a go to the next size on wattage for more options in the future , but it may be too pricey.

Last edited by rmyauck; 9th January 2019 at 04:35 AM.
  Reply With Quote
Old 16th January 2019, 09:05 PM   #29
phas10eezy is offline phas10eezy  United States
diyAudio Member
 
Join Date: May 2018
would one electron UBT-2 OPT be appropriate for Tubelab SE45? Description of OPT at AES states to be used for B+ of 400-500V.
  Reply With Quote
Old 17th January 2019, 04:59 AM   #30
Pooch is offline Pooch  United States
diyAudio Member
 
Join Date: Nov 2010
Ub-2 is what I'm using. Sounds great! Is it as good as others, I don't know......but I'd sure like to
  Reply With Quote

Reply


Tubelab SE with 45 tubes onlyHide 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
Tubelab SE with 2A3 Hum Doc Jr 8156 Tubelab 22 26th February 2011 09:34 PM
46 and the Tubelab SE w5jag Tubelab 8 18th May 2009 08:52 PM
Tubelab SimpleSE, etc. parts - Transcendar, Allied, Triad, tubes. nodiak Swap Meet 3 30th January 2009 12:28 AM
tubelab PP? weinstro Tubelab 9 25th March 2008 04:07 AM
Especially for Tubelab: 845 amp 2.0 Giaime Tubelab 24 30th July 2006 04:39 PM


New To Site? Need Help?

All times are GMT. The time now is 05:54 PM.


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