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Old 4th November 2009, 02:32 AM   #71
GEirin is offline GEirin  
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Hi AndrewT
Thank you very vey very much.
I will try those suggestions
Guillermo
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Old 4th November 2009, 11:33 PM   #72
GEirin is offline GEirin  
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Hi
I´ve done changes.

AndrewT:T6 could be replaced with a To92 dual transistor multiplier.
The first To92 could be on the common sink fitted to T7+T8, the second could be on the main outputs heatsink.
My questions, which configuration, darlington, Sziklai?
Opinions?
Thanks
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Old 5th November 2009, 11:55 AM   #73
AndrewT is online now AndrewT  
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Quote:
Originally Posted by GEirin View Post
T6 could be replaced with a To92 dual transistor multiplier.
The first To92 could be on the common sink fitted to T7+T8, the second could be on the main outputs heatsink.
My questions, which configuration, darlington, Sziklai?
neither.
The dual transistor is a pair of NPN+PNP series connected at the emitters.
Base to Base resistor is VR. Base to collector resistors ( one to each Q) can be ~1k0 to 2k0.
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regards Andrew T.
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Old 5th November 2009, 01:07 PM   #74
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GEirin,
it looks really nice now. But BC560 and 2SA1360 should form a simple current source, please!!!
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Old 5th November 2009, 01:57 PM   #75
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GEirin,
you need PNP devices there.
This is another possibility:
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Old 5th November 2009, 07:17 PM   #76
GEirin is offline GEirin  
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Hi, AndrewT and Lumba, thanks very much.
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Old 5th November 2009, 07:24 PM   #77
GEirin is offline GEirin  
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Default Vbe Audiolab 8000

AndrewT
Which is the advantage of this tipology?
This tipology is suitable for asymmetrical amplifier?
Thanks.
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Old 5th November 2009, 07:59 PM   #78
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GEirin,
Eirin,
you could consider the diamond buffer output:
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Old 5th November 2009, 08:57 PM   #79
GEirin is offline GEirin  
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Lumba Ogir
Advantages? Diamond buffer output vs. CFP driver Ef output?
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Old 5th November 2009, 09:23 PM   #80
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GEirin,
right. Considerably greater linearity, also greater thermal instability.
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