alternative for DSEI-12 FREDs - diyAudio
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Old 20th August 2010, 09:09 AM   #1
cgian is offline cgian  Greece
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Default 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.
.
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Old 20th August 2010, 12:27 PM   #2
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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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Old 20th August 2010, 12:46 PM   #3
cgian is offline cgian  Greece
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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.
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Old 20th August 2010, 01:02 PM   #4
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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
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