Two irons for PSU

XZur · 19th December 2005, 02:43 AM

Is it okay to use two irons, one to supply the plates and another for the heaters? their centertaps will be joined to form a common ground.

Robski666 · 19th December 2005, 03:19 AM

perfectly ok, even makes it easier to implement standby/on function.

dhaen · 19th December 2005, 09:28 AM

It's recommended for noise improvement.

Tony · 19th December 2005, 12:37 PM

Quote:

Originally posted by XZur
Is it okay to use two irons, one to supply the plates and another for the heaters? their centertaps will be joined to form a common ground.

why not? irons are still very cheap in our country, costs just over a us dollar per kilo, while copper costs an average U$7.5

if you have plenty of space on your chassis, this can be done easy.

Geek · 19th December 2005, 02:52 PM

I usually use two, or three irons for prototyping and they sound great

1 x HV + grounded heaters
1 x Floating heaters
1 x Bias

Even in the final model it only gets reduced to two, because I have floating heaters in mu-followers and/or a tube regulator supply.

19th December 2005, 02:43 AM	#1
XZur diyAudio Member Join Date: Oct 2005	Two irons for PSU Is it okay to use two irons, one to supply the plates and another for the heaters? their centertaps will be joined to form a common ground.

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19th December 2005, 03:19 AM	#2
Robski666 diyAudio Member Join Date: Sep 2005	perfectly ok, even makes it easier to implement standby/on function.

19th December 2005, 09:28 AM	#3
dhaen diyAudio Moderator Emeritus Join Date: Jun 2002 Location: U.K.	It's recommended for noise improvement.

19th December 2005, 02:52 PM	#5
Geek diyAudio Member Join Date: Sep 2004	I usually use two, or three irons for prototyping and they sound great 1 x HV + grounded heaters 1 x Floating heaters 1 x Bias Even in the final model it only gets reduced to two, because I have floating heaters in mu-followers and/or a tube regulator supply.