Better tubes allow for more release of overtones?

Talk about tubes and their effect on your tone

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talltxguy
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Better tubes allow for more release of overtones?

Post by talltxguy » Wed May 04, 2011 2:33 pm

I put some NOS tubes in my Roadster and just couldn't beleive what a difference in tone they made. What really struck me was the whole 3-D thing that I've read about and hadn't experienced - until now.

It would seem to me that better tubes somehow allow for more release of overtones. Is this how it works? Or is it that the poorer tubes somehow stifle the overtones. I'm assuming the 3-D thing is hearing more overtones...am I right on that?
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Re: Better tubes allow for more release of overtones?

Post by zodiac272 » Wed May 04, 2011 3:28 pm

how spent were the tubes you replaced? I do love nos tubes, but more for reliability, the tone is good too.

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Re: Better tubes allow for more release of overtones?

Post by 94Tremoverb » Wed May 04, 2011 5:30 pm

talltxguy wrote:I put some NOS tubes in my Roadster and just couldn't beleive what a difference in tone they made. What really struck me was the whole 3-D thing that I've read about and hadn't experienced - until now.

It would seem to me that better tubes somehow allow for more release of overtones. Is this how it works? Or is it that the poorer tubes somehow stifle the overtones. I'm assuming the 3-D thing is hearing more overtones...am I right on that?
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Re: Better tubes allow for more release of overtones?

Post by J.J » Thu May 05, 2011 6:17 am

It does seem that the harmonics are just lost in average tubes. I had wondered if the tubes people seem to like were generating the harmonics, but after getting some good tubes I am sure the harmonics were just being lost.

The 3D thing is probably a result of the more hifi like performance. I have heard people decscribe this as "vivid tone colours" in the hifi world so I am not sure those guys know what is going on either. I have only ever heard good tube amps do this and it just makes me want to keep playing or listening for ever :D
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talltxguy
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Re: Better tubes allow for more release of overtones?

Post by talltxguy » Thu May 05, 2011 8:34 am

Thanks for the replies, guys. The sound is phenomenal, but I also find myself interested in learning about tubes. :) If Fenders sound better than my Tweed channel, then Fenders must have been made with some divine intervention. :lol:

Zodiac, the tubes I had in the amp were stock Mesas with about 50 hours on them. I had a new generation Tung-Sol in V1, which was better than the stock tube. I replaced the V1 & V6 with NOS Jans & put 9th gen Chinese equivalent Ruby's in V3 & V5. I also replaced the JJ rectifiers with NOS RCA's.

I didn't bother replacing the stock V5 because I don't use the effects loop. The reverb driver contains a JJ ECC81, which I'll eventually replace with a NOS ECC81.
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Re: Better tubes allow for more release of overtones?

Post by Triaxstasy » Thu May 05, 2011 9:28 am

talltxguy wrote:Thanks for the replies, guys. .....
..... The reverb driver contains a JJ ECC81, which I'll eventually replace with a NOS ECC81.
You gotta check out the Mullard CV4024 (aka ECC81)... in that position this specific Mullard is awesome!

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Re: Better tubes allow for more release of overtones?

Post by 212Mavguy » Mon May 16, 2011 7:51 am

Yes, better tubes provide a harmonic output that is more pleasing to the ears. The mix of harmonics varies from brand to brand within the same tube type. That's why it's a good thing to practice tube rolling even if you already think your amp sounds great. Great vintage tubes sound great in a decent amp/cab or combo, and fantastic in a great amp/cab/ or combo, but I'm more careful about microphonic properties in a combo situation, which IMO is a more destructive environment for a tube to operate in, particularly as power climbs up over 10 watts and preamp gain gets goosed up. What is the difference in good vs. great amp? Parts quality, layout, and lead dress. And yes, there is such a thing as a great PCB constructed amp. Does not absolutely need to be a point to point, turret or eyelet board design, even though I vastly prefer same.
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Re: Better tubes allow for more release of overtones?

Post by dodger916 » Sun May 22, 2011 8:49 am

Triaxstasy wrote:
talltxguy wrote:Thanks for the replies, guys. .....
..... The reverb driver contains a JJ ECC81, which I'll eventually replace with a NOS ECC81.
You gotta check out the Mullard CV4024 (aka ECC81)... in that position this specific Mullard is awesome!
+1. I love this tube as a phase inverter/driver.

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Re: Better tubes allow for more release of overtones?

Post by yeti » Wed May 25, 2011 11:23 pm

another vote for the mullard 4024. really, sounds great in any position, but superb as a PI or reverb tube.

if you're wanting to tame your gain, depending on your amp, v1 or v2 or 3...hell, try one in all slots. they resale pretty close to retail even used.

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Re: Better tubes allow for more release of overtones?

Post by talltxguy » Mon Jun 06, 2011 11:43 pm

I finally got around to ordering one of those Mullards. I do prefer it to a few NOS 12AX7's that I had in the phase inverter position. The amp doesn't feedback as much, I've got more useable gain, and things are smoother. I see no reason why I would need to go back to a 12AX7 in the phase inverter.

Thanks for the advice!
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yeti
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Re: Better tubes allow for more release of overtones?

Post by yeti » Wed Jun 08, 2011 12:02 pm

awesome man. yeah, i really like that tube in the pi position too.

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