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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: when you say to get matched pair tubes...... posted by muddyshoes on January 26, 2004 at 10:02:27:
Whether you need a matched set of tubes (valves) depends on the application. For example, some tube amps have independent bias adjustments for each power tube so although it might be nice to have a matched set, it may not be necessary.My Conrad-Johnson Premier 11a tube amp had a total of four 6550 power output tubes (two tubes per channel) and I would purchase a matched quad but in reality it wasn't necessary since this amp has a bias adjustment for each tube. Some amps REQUIRE a matched pair or matched quad (or more).
Another example, the ARC VT100 power amp uses 4 6550 power tubes PER channel for a total of 8 6550 power tubes. There is just ONE bias adjustment per channel (so one adjustment handles 4 tubes). In this case, it is adviseable to get a matched quad for EACH channel.
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Follow Ups
- Re: when you say to get matched pair tubes...... - AbeCollins 10:56:55 01/26/04 (1)
- Right On The Money Abe! (nt) - Jim McShane 12:31:49 01/27/04 (0)
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