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 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

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It is currently 15 Aug 2020, 08:44

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 Post subject: Re: The Ultimate OTL
PostPosted: 18 Jul 2020, 03:21 
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Joined: 03 Jun 2020, 11:06
Posts: 51
Location: France
Work progresses again and again... 8-)

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-tbln

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 Post subject: Re: The Ultimate OTL
PostPosted: 21 Jul 2020, 08:47 
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Joined: 03 Jun 2020, 11:06
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Wiring work finished and primary controls done :) :

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More pics later... ;)

-tbln.

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 Post subject: Re: The Ultimate OTL
PostPosted: 21 Jul 2020, 13:10 
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Joined: 03 Jun 2020, 11:06
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Location: France
Internal disposition :

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-tbln

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 Post subject: Re: The Ultimate OTL
PostPosted: 21 Jul 2020, 15:36 
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Joined: 03 Jun 2020, 11:06
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Location: France
Pictures once installed and operating...

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Voilà ! :D

-tbln.

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 Post subject: Re: The Ultimate OTL
PostPosted: 22 Jul 2020, 16:35 
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Joined: 03 Jun 2020, 11:06
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Location: France
End of the story : test on my Klipsch Heresy I (with corrected crossover) in my small room...

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The U-OTL reveals the often underrated potential of the Heresy speakers : everything is fine ! 8-) :D

Now, I return in the Kyzylkum desert...

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Cheers & Good Luck ! ;)

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 Post subject: Re: The Ultimate OTL
PostPosted: 23 Jul 2020, 10:46 
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Joined: 01 Jun 2013, 09:05
Posts: 974
Great work,

Is this using the technics circuit with three triodes on each side of the zero volt rail?
Have you used feedback and concertina phase splitter?

But looks really nice.
I must admit I have used fans in the past but the noise drives me nuts even on low power with temp control.

Regards
M. Gregg

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