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I have just replaced a bias resistor and EL34 tube on my Anthem AMP-1. Since I am getting fed up with having blown bias resistors, but getting good at replacing them, I just find a spare tube and plug in in with a new bias resistor and then bias each tube to about 35 ma.I noticed that the amplifier is sounding awfully good. I also am wondering if this is the result of mixing output tubes. I mean a GrooveTubes for good bass and a EH for a clear midrange, all on one output side. The other side has a EH for that good mid-range again and a Svetlana for silky highs.
Anything wrong with this? Is it maybe advantageous?
Also, I don't bias often, actually only when I install the new tubes. Is this a big mistake? I think biasing is a big headache with about fifteen little screws to undo, and then watchout for that high-voltage!
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Topic - On Mixing output tubes -- Is this a good idea? - jedinvest 14:49:20 01/21/04 (7)
- Re: On Mixing output tubes -- Is this a good idea? - Lew 07:39:34 01/22/04 (3)
- Re: On Mixing output tubes -- Is this a good idea? - jedinvest 11:11:45 01/22/04 (2)
- Re: On Mixing output tubes -- Is this a good idea? - Lew 07:07:36 01/23/04 (1)
- Re: On Mixing output tubes -- Is this a good idea? - Failsafe54 19:14:46 02/03/04 (0)
- Re: if you are replacing bias resistors often... - Russ57 15:30:42 01/21/04 (2)
- And which amp do you use that is so easy to bias? (nt) - jedinvest 16:51:56 01/21/04 (1)
- Re: It started life as a Dynaco - Russ57 04:03:57 01/22/04 (0)