Quad 520/707 solutions to 405?

Zombie · 6th October 2005, 08:36 AM

Hello!
What is the function of the 2 or 4 ZTX transistors straight after the PSU caps? Regulating?
Is this more or less applicable to the 405-2? What would the effect on the sound be?
Cheers
Tom

orjan · 8th October 2005, 12:21 PM

Hi,

It converts a single polarity supply into a symetrical wit +, - and ground. On reason is it makes the transformer cheeper.

Don't know of any effect to sound though.

Örjan

6th October 2005, 08:36 AM	#1
Zombie diyAudio Member Join Date: Feb 2003 Location: At home	Quad 520/707 solutions to 405? Hello! What is the function of the 2 or 4 ZTX transistors straight after the PSU caps? Regulating? Is this more or less applicable to the 405-2? What would the effect on the sound be? Cheers Tom

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8th October 2005, 12:21 PM	#2
orjan diyAudio Member Join Date: Mar 2005 Location: Stockholm	Hi, It converts a single polarity supply into a symetrical wit +, - and ground. On reason is it makes the transformer cheeper. Don't know of any effect to sound though. Örjan

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