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Old 14th February 2009, 09:21 AM   #1
Stee is offline Stee  Italy
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Default The Golden Ratio Stage

CIAO
...Many Years of Reasearch for a Natural Proportional Audio Amplifier creating:

this Golden Ratio

come from Bryston's design and
BGR BLAZER X8 (I'm waiting to have at home to modify)
and ARCHIMEDE's sphere ratio (2:3) calculation

driver it's again a final device because can balance the Hide Gain of CFP stage between two rails

maybe works good
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Old 14th February 2009, 10:40 AM   #2
h_a is offline h_a  Europe
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Stee, one thing you have for sure - that is a golden hand for choosing names

Have fun, Hannes
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Old 14th February 2009, 11:15 AM   #3
Stee is offline Stee  Italy
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Default thanks Hannes

need a 4U dissipator over gold BJT support (class AB1)
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Old 14th February 2009, 01:09 PM   #4
Nrik is offline Nrik  Denmark
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What is the purpose of transistor number two from left in the schematic?
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Old 14th February 2009, 02:47 PM   #5
darian is offline darian  France
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Too bad the golden ratio is irrationnal!
You cannot express it with integer if you are a purist!
So I guess maybe tayloring the idling currents would be a way to attain the real golden ratio...
But right now it is nothing like the golden ratio in your schematic.

Regards
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Old 20th February 2009, 04:23 PM   #6
Stee is offline Stee  Italy
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Default darian put a modify please

the purpose of transistor number two from left in the schematic
the CFP stage
is improve speed on all Output Stage
and make NFB more accurate

power case link:
http://www.modushop.biz/ecommerce/cat083_l2.php?n=1
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Old 22nd February 2009, 07:32 AM   #7
Stee is offline Stee  Italy
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Default see the complete output stage

on this DWG
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Old 22nd February 2009, 08:46 PM   #8
fjr is offline fjr
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Default OP stage

Are you sure that all the R22 power resistors are in the right places?
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