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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: RE: How to know? posted by drlowmu on April 12, 2010 at 19:18:11:
Sorry for the basic questions, but are you saying that if the amp is built as per the schematic/spec, that any 45 should run - but that if it happens to be setup for 50 mills that the tube will sound ok, but it will have a relatively shortly life? Or are you saying that it won't sound ok either? (For all I know, the amp could be setup for 50 mills, 40 mills, or 30 mills, or anything else.)
Also, why would Welborne have "super hot rodded" the design? What would be the advantage in doing so? If hot rodding a circuit both accelerates tube life and causes a stressed-out sound, why would anyone do that?
It would seem to me that at some operating spec the amp would sound it's best and at another the tubes might last longer, and in the middle would be pretty good sound and pretty good tube life, or is there some other trade-off going on?
I'd like to get 10k hours from a tube, but I might go for better sound and 1k hours if the sound was noticeably better. What I wouldn't want to do is plug in a tube and cause a tube failure, or worse yet, an amp failure.
I bought the amps from a guy who was really into Welbornes and I'm sure he wouldn't have bought an amp that just ate tubes, and based on how good the amp sounds with the RCA 45s I can't imagine it was backed off from sonics too much just to save tube life either; so I'm really just trying to confirm that I can plug in a couple National Union 45s and safely listen to see if the NUs have any noticeably different sonic characteristics than the RCAs.
On another note, I've heard that the EMLs require a different resistor value than most (all?) other 45s; I can believe that some tubes, such as the EMLs, that don't conform to the standard/orginal 45 spec might need a different resistor or circuit value, but is is non-conforming tube design common among 45s, or are most 45s set up such that if one 45 tube works well with a circuit, others should also?
- all I really want to do is swap out the RCAs with the NUs, not second guess Welborne's factory built design
I'm more into listening to amps than building or modifing them :)
Thanks again
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Follow Ups
- Some more questions - Yada 04/12/1020:32:57 04/12/10 (7)
- RE: Some more questions - drlowmu 21:33:36 04/12/10 (6)
- Jeff, Thanks - Yada 21:48:46 04/12/10 (5)
- RE: Jeff, Thanks - tube wrangler 23:25:43 04/12/10 (0)
- RE: Jeff, Thanks - drlowmu 22:08:12 04/12/10 (3)
- RE: Jeff, Thanks - tube wrangler 23:57:00 04/12/10 (0)
- 7 watts dissapation - Yada 22:24:43 04/12/10 (1)
- RE: 7 watts dissapation - drlowmu 22:45:37 04/12/10 (0)
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