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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 7th July 2011, 12:11 AM   #11
a.wayne is offline a.wayne  United States
Sin Bin
Join Date: May 2008
Location: Front Row Center
Originally Posted by w5jag View Post
Summer is here in Arkansas, and to save on heat in the living room, where the Simple SE runs whenever someone is home, I've rigged it up for the little tubes.

Right now I'm running GE 6K6GT's and when I want to really save on heat, I go with 6G6G's, which sound surprisingly good within their limitations. After a trip to the warehouse the most powerful tube I now have at home is 5881 (excepting a pair of the cobalt blue Tesla EL34's - my wife really likes the cobalt color, so what can you do ).

If you can use the little tubes in your Simple SE - give it a try. They sound great, better than the big ones, I think, although when set up for low power they sometimes lack the deep bass extension of some of the more powerful tubes, but they consume / radiate a fraction of the heat.


I guess you could use a chip amp for the summers .............
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Old 7th July 2011, 02:36 AM   #12
Anchan is offline Anchan  United States
diyAudio Member
Join Date: Jul 2009
Default 6v6

Originally Posted by pso View Post
Hi W5JAG and Ty_Bower.

I'm an amateur and so far not want to get with serious experiments , I'm in the process of assembling the parts , I'll go with the first option changing 5U4 for 5Y3 , and my idea seemed not so bad , this is the first amp that I build and the comments I read it seems the bomb.

I've been running the jj 6v6s' with a PA060 transformer (same tranny as in st-70, 360-0-360v) for about 8 months with no problem whatsoever. Sounds awesome! The b+ is around 430v. I think I am using a 1300 ohm cathode resistor or therabouts. I'm using the same rectifier that tubelab recommends-nothing special. I'd stay away from the 375-0-375 transformer though. At most go with a 360, but really you can go much lower if you plan on using 6v6's.

Last edited by Anchan; 7th July 2011 at 02:42 AM.
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Old 7th July 2011, 08:35 PM   #13
pso is offline pso  Spain
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Join Date: May 2010
Location: Valencia

The plan is to use (375-0-375) not to be outdone when running the KT88-Z.
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Summer is here - little tubes go in Simple SEHide this!Advertise here!
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