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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Rectifiers---fast/slow---SS/tube??? posted by Hans on April 12, 2000 at 00:22:50:
okey, I went to International Rectifier, www.irf.com , and looked at some data for HEXFREDs.The clue is not that they are very fast, but that they: (from their own description) 'In addition to ultra fast recovery time, the HEXFRED features extremely low values of peak recovery current and does not exhibit any tendency to 'snap-off' during the 'tb' portion of recovery.'
This gives less noise, (RFI and EMI), than regular SS diodes.
This is excactly what tube diodes are good for, the soft on/off characteristics, and explanes their superior 'sound'.
Everytime I see the use of HEXFREDs it is always the 'ultra fast' feature which is mentioned, and that's what puzzled me, but it's the 'ultra soft' feature which should be mentioned.
So now I see how HEXFREDs, just like tubes, are better rectifiers.
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Follow Ups
- Found it: - hans 00:41:43 04/13/00 (2)
- Re: Found it: - Pär 04:57:56 04/13/00 (1)
- Re: Found it: - hans 06:17:41 04/13/00 (0)
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