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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: Re: a note for newbies: NOS tubes, money for audio, etc posted by el34eh@yahoo.com on June 26, 2005 at 12:57:44:
El34EH,All points are well taken. The tube is only one component (albeit, easy to replace) in a unit. The "voicing" or other components like the resistors and capacitors play just as inportant a role.
Coupling cap types & values, cathode bias values on the signal tubes & concomitant time constant and local negative feedback, use of global negative networks and the constraints designed into this network, impedance macthing between stages, strength and design of the power supply and bias supply, AND MOST important the IRON (output transformers and power transformers)---are just as important and can lend a certain degree of limitation to the amouont oftonal change due to simple tube changes.
In other words, a bad circuit design is going to probably have problems regardless of the tubes used. And an excellent design may sound good with new, NOS, or used tubes.
TONE is the determinate factor. If the system sounds good to you, that's what matters. Not, the hunt for "the Holy Grail" tube. I've seen so many folks disappointed when they've fork out muy dinero, for "magic bullet" tubes---which can lead them to believe that NOS is just hype.
When, all along it may be a bad coupling cap. Or poor power supply design, or unstable idle bias control, or mis-designed global negative feedback, or worse---positive feedback anomalies.
If your system sounds bad to you. Check the obvious. Speaker placement. Inadequate power from the amp to drive the speakers. cables, etc.
And if the system sounds good to you. "Let sleeping dogs lies" (IMO).
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Follow Ups
- Re: a note for newbies: NOS tubes, money for audio, etc - steven oda 15:27:09 06/26/05 (2)
- Re: a note for newbies: NOS tubes, money for audio, etc - el34eh@yahoo.com 17:41:29 06/26/05 (1)
- Most people won't break out a soldering iron - Kevin Deal 09:54:21 06/27/05 (0)
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