In Reply to: What's the advantage? posted by Tre' on September 28, 2009 at 17:07:52:
No adjustments of PP bias currents, low components count, no trimmers, 'eternal & perfect' balance of output currents (as the transformer primaries are in series), no need for tube matching, no HT transformer, modest increase of second order distortion whith tube ageing.
Last but not least, you can use economic AC mains transformers (the same as for linear power supply) instead of expensive audio transformers (because of the perfect balance of the bias current).
Does a DIYer ever needs more?
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Follow Ups
- RE: What's the advantage? - 6AS7_6SN7 23:43:08 09/28/09 (6)
- RE: What's the advantage? - Michael Koster 14:55:19 09/29/09 (1)
- Transformer type etc. etc. - 6AS7_6SN7 02:26:56 09/30/09 (0)
- RE: What's the advantage? - Al Noakes 10:49:43 09/29/09 (0)
- RE: What's the advantage? - Tre' 10:26:52 09/29/09 (2)
- Safety issues and 6AS7 rationale - 6AS7_6SN7 02:50:12 09/30/09 (0)
- RE: What's the advantage? - reVintage 10:56:49 09/29/09 (0)