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 22nd November 2019, 06:33 PM   #1
Duke58 is offline Duke58  United States
diyAudio Member
 
Join Date: Jan 2009
Default Triode or UL for SSE?

How do most people connect their SSE amps to the OPTs-- triode with CFB or UL with CFB?

Or, some other method???
  Reply With Quote
Old 23rd November 2019, 01:40 AM   #2
Tubelab_com is offline Tubelab_com  United States
diyAudio Member
 
Tubelab_com's Avatar
 
Join Date: Jul 2005
Location: West Virginia panhandle
That is a question with a different answer depending mostly on the choice of music, speaker system, room size, and expected listening level.

For those who prefer simple music like a female singer with minimal accompaniment, say Norah Jones, Enya and the like, played at medium volume through relatively efficient speakers, the choice is usually an EL34 in triode with no feedback.

Want to play techno or crank some Pink Floyd at levels where the peaks touch clipping. Got big speakers and big OPT's, then run KT88's or 6550s in UL with the CFB enabled.

For anything in between these extremes, its harder to guess what you want without more information.

A few builders including myself have experimented with pentode operation, but it buys little over UL and requires more feedback to clean up the bass that the SSE was designed for without hacking up the circuit a bit.
__________________
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 23rd November 2019, 03:15 AM   #3
Duke58 is offline Duke58  United States
diyAudio Member
 
Join Date: Jan 2009
I'll install switches for the CFB and UL mode. My SSE was connected in triode mode with no feedback. Reminded me of my very first tube amp i bought from Decware, a little two watt job that sounded really good, but didn't get loud enough to satisfy me when I had my beer muffs on.

Just for fun, I connected the OPTs UL with CFB. I like it a lot and it is louder.
  Reply With Quote
Old 1st December 2019, 03:50 AM   #4
Treybal is offline Treybal  Chile
diyAudio Member
 
Join Date: Mar 2011
My SSE have the following setup:
No feedback
Triode connected 6550
97 dB speakers
Playing blues, rock and jazz mostly. Metal missed some guts tough.

Have passed by:
Triode and UL with and without feedback EL34 and 6550, no switch just reconnect. And have preferred the actual setup.

Transformers: Transcendar 15 W

Just for information. It's all about taste, but the amplifier sound very good.

Greetings
Roberto
  Reply With Quote

Reply


Triode or UL for SSE?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Just for fun - Comparison of 6C45P, 6Z52P-Triode, and 7788-Triode curves rongon Tubes / Valves 4 15th November 2019 07:34 PM
Single triode instead of double triode? Suuup Tubes / Valves 0 16th February 2016 05:25 PM
12T10 triode connection - similar "real" triode to compare to? geezertron Tubes / Valves 16 28th February 2015 11:23 PM
Another 3f4 spice triode model: 5718 submini triode wa2ise Tubes / Valves 0 5th September 2008 05:31 AM
PP-Triode , PP-UL , PP-Pentode-strapped-as-Triode percy Tubes / Valves 23 22nd January 2007 01:36 AM


New To Site? Need Help?

All times are GMT. The time now is 03:21 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki