Single Ended Ultra linear, anyone built one?

[Elias]

Hello,

"Single Ended Ultra linear, anyone built one?"

Yes, coming on the way:
http://www.diyaudio.com/forums/showthread.php?postid=1620017#post1620017

It has a switch for UL mode.

- Elias

 

[wrenchone]

Here is a picture of the "Shrine" amp in its current incarnation. When I retrofit the amp with the GSXE transformers, I'm changing the wires and pilot lamp from blue to yellow, adding oak angles to conceal the edges of the top and bottom plates, and substituting black oxide hardware for the zinc plated stuff to make it invisible against the black crackle case. All the guts are in the 6" cubical case.

 

[wrenchone]

Here is the current circuit for the "Shrine" amp,

 

[dtut]

Try this link.

http://db.AudioAsylum.com/cgi/m.mpl...hlight=6550+SE+proud+papa+%A0dtut&r=&session=

 

[otto88]

Do any of these dozen odd SE ULs output at least 40 watts?
or would that require parallel SE UL – and more $ transformers?

Thanks

 

[wrenchone]

Doug - I hope you bring your amp to BA this year. One - AR2 wants to hear it again. Two - I'd like to compare my little guy to your big guy using some nice, efficienct speakers. This would be to get some listening data points on the Edcor iron vs. the James iron, and the hybrid vs. the straight tube approach. I have a feeling that your amp will shine with high volume, bass-heavy material, but the difference between the two amps may be less discernable at lower volume levels. I'll never know unless I listen to another amp in comparison.

I'm working on another, larger amp using the "Super" 6BG6s and Transcendar output transformers (the large 3k units), but I seriouly doubt it will be ready in time for Burning Amp. It would be triode-strapped anyway, since the Transcendar transformers I have on hand have no UL tap.

 

[dtut]

Yes, I'll be at Burning Amp again this year. Really enjoyed myself in '07. Great gathering. I'm working on finishing up a 12B4 SE that I want to bring and I'll bring the 6550, too.