Kt150 simple se - Page 3 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Tubelab

Tubelab Discussion and support of Tubelab products, prototypes and experiments

Reply
 
Thread Tools Search this Thread
Old 26th February 2014, 12:16 AM   #21
diyAudio Member
 
Join Date: Sep 2007
Hey folks I'm getting ready to build a KT150 set of mono blocks and finally got the tubes. For shites and giggles I thought I'd drop em in my SSE ... Got a good run it last night for a good 3 hrs spinning vinyl and sipping wine etc. Right out of the box fresh they sounded pretty good, very good actually and I'm running this SSE from a 350-0-350 that is running plate voltage right around 350V loaded down (with KT88s) I haven't measured the loaded voltage with these but I would expect the same .... anyhow they sound fantastic. Something about the bass seems cleaned up more and just a feeling but they seem a little more 3D sound stage. I'm not all that good with verbage to describe sounds but I do notice a positive difference and I'm not talking a more warm sound just a little cleaner sounding with more bass and wider deeper sound stage. I've got the amp on right now but I'm in my shop so they could be up in smoke by now!! I doubt it tho. I did modify the power supply some from George's design. My C2 cap is 470uF 500v with the added motor run 100uF so a little beefier than the original design. I have some VERY efficient speakers horn loaded mids and tweeters and 15" bass drivers @ 105+dB/m efficiency so I can hear and notice the bass cleaning up... At any rate here's a few pics for ya's. BTW Trooper sold me his old box so if it looks familiar that's why and HUGE kudos to trooper, he does such a mighty fine job on cases, the stone under the amp is Quartzite (I'm a professional stone guy) :
Attached Images
File Type: jpg SSE_KT150_2.jpg (406.9 KB, 1133 views)
File Type: jpg SSE_KT150.jpg (422.7 KB, 435 views)
File Type: jpg SSE_KT150_3.jpg (407.0 KB, 424 views)
  Reply With Quote
Old 26th February 2014, 05:52 PM   #22
diyAudio Member
 
Join Date: Nov 2012
Thanks man!!!
  Reply With Quote
Old 27th February 2014, 12:21 AM   #23
diyAudio Member
 
moggi1964's Avatar
 
Join Date: Dec 2010
Location: Madison NJ
Great case and gorgeous stone.

Don't start giving me expensive ideas
__________________
Magnavox 185 amp w/ Vista Phono1+ w/ Dual 1219; Loth-X Ion 1 BS & Emotiva XDA2. WIP: Tubelab SE 300b
  Reply With Quote
Old 27th February 2014, 07:20 PM   #24
diyAudio Member
 
Join Date: Sep 2007
Quote:
Originally Posted by moggi1964 View Post
Great case and gorgeous stone.

Don't start giving me expensive ideas
Stone was free & the case I bought from Trooper at the Swap Meet! This was hands down the easiest amp build I've ever done. Of course having the case already pre built made it SUPER easy.

Still liking those KT-150 as well, I'm throwing a bunch of music at them and I like the sounds I'm hearing.

Cheers,
Bob
  Reply With Quote
Old 11th May 2014, 12:18 PM   #25
diyAudio Member
 
Join Date: Sep 2007
Here's my iteration on this design. KT150 with 30W Hammond transformers. NOS Stancor 400-0-400 PT, everything under the hood is beefed up. Loaded voltage at the plates is 412v. I don't want to run this without tubes!! Finished this one yesterday, transformers dont even get warm, still breaking in so I haven't plugged in any other speakers than my bench speakers, but those get pretty loud. I'll hook up to a proper set of speakers after family fun today. This amp weighs in at +40#s!!

Click the image to open in full size.

Click the image to open in full size.

Cheers,
Bob

Last edited by bobrown14; 11th May 2014 at 12:21 PM.
  Reply With Quote
Old 12th May 2014, 04:58 PM   #26
diyAudio Member
 
Join Date: Sep 2007
Here's a pic of my KT150 - don't know what happened in the previous post, I lost those pics for some reason.

Cheers,
Bob
Attached Images
File Type: jpg KT150_05_08_2014_02.jpg (451.9 KB, 221 views)

Last edited by bobrown14; 12th May 2014 at 05:09 PM.
  Reply With Quote
Old 15th June 2014, 02:55 AM   #27
diyAudio Member
 
Join Date: Nov 2012
So if I had 5k output transformers, with 8 and 16 ohm taps, I could swap kt88s for kt150s and they would see 2.5k load on the 16ohm tap?

Bob that amp is a beauty!!!
  Reply With Quote
Old 9th February 2015, 02:12 PM   #28
diyAudio Member
 
Join Date: Jan 2008
Quote:
Originally Posted by the trooper View Post
So if I had 5k output transformers, with 8 and 16 ohm taps, I could swap kt88s for kt150s and they would see 2.5k load on the 16ohm tap?

Bob that amp is a beauty!!!
Agreed and want to build one. Is there schematics available?
  Reply With Quote
Old 9th February 2015, 04:47 PM   #29
diyAudio Member
 
Join Date: Sep 2007
Quote:
Originally Posted by Victorinox View Post
Agreed and want to build one. Is there schematics available?
You can build this with the Tubelab SSE board or use George's schematic found on his website here:

Tubelab SSE | Tubelab


The SSE board works fine for a 20-25w/ch version you need to up-rate a few parts for extra voltage/current as well as getting a larger power transformer. I've used a 400-0-400 and also a 425-0-425 PT, just need enough amps to handle the draw. If you crank up those KT-150s for a lot of power be sure your PT is worthy. If you let the amp idle with no sound the PT tends to warm up some! Pretty much SOP with SE amps or any tube amp really never a good idea but those big bottles like some current so that's the only thing I kinda worry about, I just don't leave my amp sitting on with no sound and go make dinner or something you get the idea.

Cheers,
Bob
  Reply With Quote
Old 9th February 2015, 04:54 PM   #30
diyAudio Member
 
Join Date: Nov 2012
Hi Bob Hows it going? Finish that last Simple SE yet? I'd love to see some pictures
  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
Comparison KT150 versus KT120 es345 Tubes / Valves 55 28th January 2015 07:16 PM
kt150 cyclecamper Tubes / Valves 38 16th December 2013 01:17 PM
Tubelab SE vs Simple SE Pez Tubelab 25 29th October 2011 02:16 AM
Simple SE Simple Power Drive? Skorpio Tubelab 1 5th May 2011 09:45 AM
Tubelabs SE vs. Simple SE ?? albireo13 Tubes / Valves 16 21st February 2010 09:00 PM


New To Site? Need Help?

All times are GMT. The time now is 01:05 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2