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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 3:46 am 
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Until your fingerprints are burned onto the surface of a HOT 6L6 you
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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 5:58 am 
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It may be a reference to guitar amp tubes, which can have different distortion sounds. Hence "this one sounds fatter or richer" (EL34's), vs. "this one sounds more glassy" (6550's apparently). Of course, other circuits in the guitar amp would make a difference also. But I"ve seen similar comments about tubes on guitar forums, so that may be where the terminology is coming from -- or where it is aimed at.


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 11:45 am 
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Quote:
Should cook nicely, if wrapped around an metal 6L6. See if its the non-stick version, else slather in lard first !


This only works in a convection oven. Put one in a microwave like this, and you not only get fatter tone, you get a light show to go with it ;-/ Does that make it a fat microwave tube?


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 4:31 pm 
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Location: Hutchinson KS
The site was Antique Electronic Supply. I was searching for KT88 tubes and the substitutes, 6550 I believe, all had these odd descriptions I mentioned!


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 5:35 pm 
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Joined: Sep Thu 23, 2010 6:37 am
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Location: Powell River BC Canada
Antique Electronic Supply is one of my favorite stores ! I still have cartons of
tubes ordered 40 years ago! Great price in 100 lots !

Who can tell when E-1148 or EF 50 types will fatten the sound of something. :D

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 5:37 pm 
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Fatter Sound is what you get when you sit on a couch all week listening to Pink Floyd and Metallica, eating eating eating and eating


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 6:02 pm 
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Location: Powell River BC Canada
mmmm couch tones :D

Attachment:
Somewhere in the 600 pages of Helmholtz  Father of the Bass Reflex speaker Fatness of tone might be found.jpg
Somewhere in the 600 pages of Helmholtz Father of the Bass Reflex speaker Fatness of tone might be found.jpg [ 177.68 KiB | Viewed 968 times ]

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 8:52 pm 
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It means you are about to get your pockets picked.

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 9:44 pm 
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I once rebuilt a PAS 3 preamp with metal film resistors and polyprop caps, as I had easy free access to the parts to do it. Then I did run that preamp in my system awhile but with a solid state power amp. I tried swapping Mullard and Telefunken tubes back and forth, and yes, I could hear some difference between the brands. But that was the 80s when my hearing was better and those kind of tubes were not like gold coins.


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 9:58 pm 
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If you simply MUST have Fatter TONE .... then you should be using this speaker!!!

http://www.audioclassics.com/brochure/SP13.5TRBXWK.pdf


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Thu 24, 2017 11:04 pm 
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wazz wrote:
I once rebuilt a PAS 3 preamp with metal film resistors and polyprop caps, as I had easy free access to the parts to do it. Then I did run that preamp in my system awhile but with a solid state power amp. I tried swapping Mullard and Telefunken tubes back and forth, and yes, I could hear some difference between the brands. But that was the 80s when my hearing was better and those kind of tubes were not like gold coins.



If you can remember the 80s, you weren't there.. :D :D

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Fri 25, 2017 5:57 am 
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In guitar lingo, fatter is more overdrive, more distortion.
Sounds like Purple Haze. 8)
The easy way to achieve fat-ness is with a pedal or Fuzz box type effect ahead of the amp. Basically a preamp.
Randy Bachman did this years ago by plugging one amp into another. Then his amp guy built him a proper preamp they call the Herzog for some reason. Listen to the lead of American Women, or No Time Left for You.

What are they talking about fat output tubes? Probably, that tube starts to distort earlier than the others, so takes less overdrive to reach that level where the output waveform is flattening if you watched it on a scope.

Fat is ugly in the world of HiFi, so steer clear of that stuff. :lol:

In a HiFi amp, you will never hear the difference, because you wouldn't dream of operating the tube outside of its designed specs.

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Last edited by westcoastjohn on Aug Fri 25, 2017 10:55 pm, edited 2 times in total.

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Fri 25, 2017 6:17 am 
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I have heard that phat women are much more preferable than fat women. I assume that this also applies to the tone. :lol: :lol: :lol:

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Fri 25, 2017 12:01 pm 
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Fatter tone to me means the tube is different than the original spec for the tube number hence the different sound and should have its own tube number, because if it were the same exact tube it would have the same sound as all other tubes of that type.

An example.

I do know that a new manufacture 12AT7 will not work as the FM oscillator in some German radios. Simply does not oscillate. So to me it should have its own tube number because it's obviously not a 12AT7 if it don't work in a circuit designed for a 12AT7.


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Fri 25, 2017 12:24 pm 
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Location: The Old Dominion VA 23518
westcoastjohn wrote:

Fat is ugly in the world of HiFi, so steer clear of that stuff. :lol:


No worries.....we are all of the intelligent, reasonable type, not taken in by hype. :wink:

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Mon 28, 2017 6:43 pm 
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On a more serious note, I ran into a really cool video demonstrating a 6BN6 used as a guitar distortion effect. The video had a bass guitar plugged into the circuit, and the sound had the heavy "squarewave" clipping like that heard on "American Woman." The one thing missing from the video that I wish had been included would have been an oscilloscope showing the output waveforms.

The only parameters that I could imagine a tube manufacturer improving upon while still claiming that their tube is the same as one with an identical part number are the mean time between failures or the amount of heat radiated from the bulb. If a manufacturer claimed, for instance, to make an "improved 6L6," and the improvements were achieved by building a tube with characteristic curves were different than those published by the company that first made 6L6s in the 1930s, then this new tube wouldn't be a 6L6. It would be something different.


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Mon 28, 2017 7:06 pm 
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They should number the improved tubes like they did way back when how they kept the basic tube number, but added letters after the number to signify it was still the same basic tube only improved characteristics and that it could usually sub for the original tube.

Now if the tube characteristics are changed such that the tube is nothing like the original tube then it should have a new number.


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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Mon 28, 2017 9:38 pm 
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Tube Radio wrote:
Fatter tone to me means the tube is different than the original spec for the tube number hence the different sound and should have its own tube number, because if it were the same exact tube it would have the same sound as all other tubes of that type.

An example.

I do know that a new manufacture 12AT7 will not work as the FM oscillator in some German radios. Simply does not oscillate. So to me it should have its own tube number because it's obviously not a 12AT7 if it don't work in a circuit designed for a 12AT7.


Which German radio uses a 12AT7 in the oscillator? Every one I've ever seen uses either a 6AQ8 or a pair of 6AB4's.

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Mon 28, 2017 9:45 pm 
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radiotechnician wrote:
If you can remember the 80s, you weren't there.. :D :D
I think I was there for the 60s and 70s. I'm not sure. I can't remember. :wink:

Curtis Eickerman

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 Post subject: Re: What does "Fatter Tone" mean in output tube description?
PostPosted: Aug Mon 28, 2017 11:47 pm 
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I found the 6BN6 distortion circuit clip:

https://www.youtube.com/watch?v=rsR7Y6s5tRk

I can't say that I care much for the playing, but the sound of the bass is cool.


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