alternative for DSEI-12 FREDs

cgian · 20th August 2010, 09:09 AM

Hi to all.
I m on gathering the parts for TubeLab SE but icant find the FREDS for negative voltage for the bias.As the title says what alternative diodes can i use and if it is possible to tell me where i can find them.I m from Greece and i ve searched in a local electronic store but i didnt find anything.
thank you.
.

Ty_Bower · 12:36 PM

You want the Fairchild ISL9R8120P2 solid state rectifier diodes.

What brands of rectifiers are available in your area?

cgian · 20th August 2010, 12:46 PM

Thanks TY_power
After a couple of hours googling these diodes (FREDS), i found them in a french site and i ordered them.I ll have in mind the alternatives you suggest so thank you very much.

Ty_Bower · 20th August 2010, 01:02 PM

Glad you found some. Keep in mind there is a high incidence of failure reports over recent batches of the IXYS parts. The Fairchild diodes appear to be much more rugged, and if you have the opportunity I'd recommend you use them instead. See some comments here:

Simple SE Schematic

Simple SE with KT88's

20th August 2010, 09:09 AM	#1
cgian diyAudio Member Join Date: Aug 2008 Location: Thessaloniki	alternative for DSEI-12 FREDs Hi to all. I m on gathering the parts for TubeLab SE but icant find the FREDS for negative voltage for the bias.As the title says what alternative diodes can i use and if it is possible to tell me where i can find them.I m from Greece and i ve searched in a local electronic store but i didnt find anything. thank you. .

20th August 2010, 12:27 PM	#2
Ty_Bower diyAudio Member Join Date: Mar 2007 Location: Newark, DE	You want the Fairchild ISL9R8120P2 solid state rectifier diodes. What brands of rectifiers are available in your area? Last edited by Ty_Bower; 20th August 2010 at 12:36 PM.

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20th August 2010, 12:46 PM	#3
cgian diyAudio Member Join Date: Aug 2008 Location: Thessaloniki	Thanks TY_power After a couple of hours googling these diodes (FREDS), i found them in a french site and i ordered them.I ll have in mind the alternatives you suggest so thank you very much.

20th August 2010, 01:02 PM	#4
Ty_Bower diyAudio Member Join Date: Mar 2007 Location: Newark, DE	Glad you found some. Keep in mind there is a high incidence of failure reports over recent batches of the IXYS parts. The Fairchild diodes appear to be much more rugged, and if you have the opportunity I'd recommend you use them instead. See some comments here: Simple SE Schematic Simple SE with KT88's