The Golden Ratio Stage

Stee · 14th February 2009, 09:21 AM

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

h_a · 14th February 2009, 10:40 AM

Stee, one thing you have for sure - that is a golden hand for choosing names

Have fun, Hannes

Stee · 14th February 2009, 11:15 AM

need a 4U dissipator over gold BJT support (class AB1)

Nrik · 14th February 2009, 01:09 PM

What is the purpose of transistor number two from left in the schematic?

darian · 14th February 2009, 02:47 PM

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

Stee · 20th February 2009, 04:23 PM

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

Stee · 22nd February 2009, 07:32 AM

on this DWG

fjr · 22nd February 2009, 08:46 PM

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

14th February 2009, 10:40 AM	#2
h_a diyAudio Member Join Date: Sep 2006 Location: Graz, Austria	Stee, one thing you have for sure - that is a golden hand for choosing names Have fun, Hannes __________________ fresh matched IRFP240/IRFP9240 fets \|\| AlephJ/JX-kits F5 transistor kits \|\| Burning Amp BA-1/2/3 transistor kits

20th February 2009, 04:23 PM	#6
Stee diyAudio Member Join Date: Jul 2005 Location: milan	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 __________________ visit my best audio idea http://www.esafono.it/DACTONE.htm

22nd February 2009, 08:46 PM	#8
fjr diyAudio Member Join Date: Feb 2009	OP stage Are you sure that all the R22 power resistors are in the right places?

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14th February 2009, 01:09 PM	#4
Nrik diyAudio Member Join Date: Feb 2005 Location: Copenhagen	What is the purpose of transistor number two from left in the schematic?

14th February 2009, 02:47 PM	#5
darian diyAudio Member Join Date: Mar 2006 Location: Paris	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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