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Old 23rd July 2012, 08:25 PM   #61
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Quote:
Originally Posted by vdi_nenna View Post
Will the F6 require custom transformers or off the shelf types?
It uses 4 X 600 ohm windings.

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Old 23rd July 2012, 08:26 PM   #62
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@ Audiotux

yup

'nuff material for Deutsch or Deutsch/English Haiku
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Last edited by Zen Mod; 23rd July 2012 at 08:31 PM.
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Old 23rd July 2012, 08:26 PM   #63
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Originally Posted by buzzforb View Post
I need to go to rehab. I have ten unfinished projects and I am sitting here thinking about this one.
Take two Aspirins and see Doc. Pass in the morning!
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Old 23rd July 2012, 08:29 PM   #64
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Quote:
Originally Posted by Nelson Pass View Post
It uses 4 X 600 ohm windings.

wanna bet ?

(I never bet , because I'm loosin' each time )



naah ..........


MZM thinks it's more as 4 x 150 Ohm , so 600:600 (conditionally) when 150+150:150+150

edit:

beep!

beep!
(ZM , humble , as Monty Pyton machine )

Test Circuit 1 , 2 , 3 ; 4 is not counting
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Last edited by Zen Mod; 23rd July 2012 at 08:39 PM.
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Old 23rd July 2012, 08:41 PM   #65
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Quote:
It uses 4 X 600 ohm windings.
Thanks Big Daddy.

I imaging the requirements are larger than this transfo?

Audio Transformers
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Old 23rd July 2012, 08:45 PM   #66
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that jobie is having just 2 coils

you need at least 3 (same ones )
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Old 23rd July 2012, 09:03 PM   #67
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Quote:
Originally Posted by generg View Post
Hallo tiefbass,

kleine Fehler....small errors, of course I meant Burning Amp-1, sprich BA-1, I was confused by BBA-3!

and the Magma was a nice try to combine F4 and an autoformer, to have a M2 like combination without feedback......

Introducing the MAGMA front end for BA-2 and F4

audio rob used a Jensen Transformer JT-13K7-A and published some data...

Gerd
Thank you for the enlightenment.

Which of the follow brands provides the best price-performance ratio for interstage resp. driver transformer ??

Korato
http://www.korato.com/korato.php?series=14
Trafomatic Transformer
Cinemag
http://cinemag.biz/line_input/line_input.php
Amplino
http://www.amplimo.nl/
Lundahl
http://www.lundahl.se/sidor/line_out.html
Jensen
http://www.jensen-transformers.com/ln_out.html
ZEROimpedance
http://www.zeroimpedance.com/products.html
Welter
http://www.welter-electronic.de/
Plitron
http://www.plitron.com

Last edited by tiefbassuebertr; 23rd July 2012 at 09:25 PM.
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Old 23rd July 2012, 09:08 PM   #68
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Quote:
Originally Posted by Nelson Pass View Post
The transformer secondaries are set up to drive the Fets in a matched
fashion, ........
Pa , please clarify .

I'm dumb ........ I can't see any meaning in driving both gates in phase , if that's meaning of "matched" ;

I certainly didn't look at first post pic thoroughly ......... and now I see that secondaries are really connected to drive gates in phase ........

if yes , then upper and lower modulation must be different in amplitude , intentionally ........



off course , there is always possibility that you're pullin' da leg of poor ZM
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Old 23rd July 2012, 09:26 PM   #69
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Is the top FET on the output stage some kind of mu-follower variation? They don't appear to be push-pull.
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Old 23rd July 2012, 09:27 PM   #70
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Geez! I was going to suggest an AA meeting for audio, but i realized its already available in the form of this crazy event called BAF. You should see the pics from this thing. Its clear what type of person you will find there. Crazy guys with long hair smooching other guys. They even got crazy inventor who looks like Albert Einstein showing moving pictures that contain graphs of how distorted their world view is.........I want to go to there
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