TSE Parts - Page 2 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Tubelab
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubelab Discussion and support of Tubelab products, prototypes and experiments

Thread Tools Search this Thread
Old 11th October 2011, 03:32 AM   #11
beeah is offline beeah  United States
diyAudio Member
Join Date: Feb 2006
Location: Upstate NY
Originally Posted by TerribleT View Post
2. FDPF5N50NZ-ND Beeah said he would use this part. Beeah, how did it work out?
Sorry, can't help you there. I managed to find the original 2SK3563 MOSFETs from a vendor through Amazon - hopefully they're genuine... Can't test yet as I'm still waiting on my Edcor order.
  Reply With Quote
Old 14th October 2011, 05:49 PM   #12
diyAudio Member
boywonder's Avatar
Join Date: Jan 2008
Location: So.Cal.
Default about those MOSFETs....

I'm curious about the required voltage rating of the MOSFETs......in the TubelabSE it appears that the source-drain voltage can be high, especially when running 300B's at 375-400V or so, since the -ve rail can be upwards (downwards?) of -300V for a difference of 700V or so. It would seem like the 500V rated parts wouldn't stand much of a chance. Are the 2SK3563's and other 500V rated parts only appropriate when running 45's?

Is it as simple as looking at the source-to-drain voltage difference? I suppose the 20K/36K R connected to the source side has something to do with it......do those R's drop all of the voltage?

Last edited by boywonder; 14th October 2011 at 05:51 PM.
  Reply With Quote
Old 14th October 2011, 05:55 PM   #13
diecast is offline diecast  United Kingdom
diyAudio Member
Join Date: Jul 2009
Default I have been gathering parts for so long that...

I got my TSE board on May 2007 and at the time the 2SK2700 was still available here and there and I got some. I also have some 2SK3563 I acquired more recently - the result of "well maybe..." type thought process that means I also have five different sets of coupling caps. I expect there are fellow sufferers out there.

So which is preferable? From the Crss graphs I have it looks like the 2SK2700 may have a lower capacitance but more variable with voltage whereas the 2SK3563 has about 7pF but dead flat.

I do get round to making things BTW. I will post some pictures of my SSE later.

  Reply With Quote


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
TSE redone..working well..but :) Green77 Tubelab 6 29th June 2011 08:00 PM
Running a TSE with 5u4g? discomonkey Tubelab 6 30th April 2011 04:30 PM
TSE c4 question evanc Tubelab 4 20th April 2011 03:31 AM
Motor Run vs. Solen in TSE jeffx Tubelab 8 5th March 2011 08:00 PM
Lost a channel in my TSE oldmanStrat Tubelab 4 26th August 2009 01:13 AM

New To Site? Need Help?

All times are GMT. The time now is 07:53 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2