It's Wed Again

[Winston OBoogie]

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[Winston OBoogie]

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[DrFrankencopter]

You've gotta love that spec sheet for the transformer:

Test: Human Listening Test
Result: > Not too shabby

Brilliant!

Cheers,

Kris

 

[audiocraft]

Thanks for the revised schematic Winston ... :grin: :guinness:

As I said I have some more info that I will post soon regarding
the 37 console and the mods made to the V72 amps
to turn them into V72S ...
Diferent unit but nevertheless interesting ...

:guinness: :guinness:

Luis

 

[Winston OBoogie]

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[audiocraft]

Some info on the EF806S tubes...

www.jogis-roehrenbude.de/Roehren-Geschichtliches/Ef86/EF806S.pdf

http://www.neumann.com/pinboard/parse.cgi?message_id=9534

http://www.tab-funkenwerk.com/Tubes%20and%20use.html

Luis

 

[Winston OBoogie]

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[fum]

that sounds fair to from here. what are the specs on the output traffo?

ju

 

[Ethan]

Sounds fair to me.
I would like one but am I too late? I never heard any announcement for such...

 

[Winston OBoogie]

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[Cainester]

Can I be on the list too?
Thanks,
Caine

 

[jrmintz]

Ooh! Me too!

Thanks

 

[soundguy]

sign me up sir boogie.

dave

 

[jho-audio]

Please add me. :green:

 

[AudioJunkie]

I'm also interested. Would have signed up sooner had i known about it.

Daniel

 

[NewYorkDave]

Thanks for the info, John.

That's an interesting circuit. It has no fewer than three feedback loops: current feedback at the cathode of V1, voltage feedback from plate to grid of V2, and overall voltage feedback from the plate of V2 to the cathode of V1. The designer broke some rules with the number of R-C time constants in the feedback loop, but obviously the circuit works.

What's the spec on the output transformer?

As for the PCBs, I don't have Paypal anymore. Can you accept checks, money orders, etc?

 

[Winston OBoogie]

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[NewYorkDave]

Oh yeah, I do want a pair, not just one.

 

[Winston OBoogie]

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[tubejay]

I'd be in for a pair as well!